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oceanbase/src/sql/resolver/expr/ob_raw_expr.cpp
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2021-05-31 22:56:52 +08:00

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/**
* Copyright (c) 2021 OceanBase
* OceanBase CE is licensed under Mulan PubL v2.
* You can use this software according to the terms and conditions of the Mulan PubL v2.
* You may obtain a copy of Mulan PubL v2 at:
* http://license.coscl.org.cn/MulanPubL-2.0
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
* See the Mulan PubL v2 for more details.
*/
#define USING_LOG_PREFIX SQL_RESV
#include "sql/resolver/expr/ob_raw_expr.h"
#include "sql/resolver/expr/ob_raw_expr_info_extractor.h"
#include "sql/resolver/expr/ob_raw_expr_deduce_type.h"
#include "sql/resolver/expr/ob_expr_relation_analyzer.h"
#include "sql/rewrite/ob_transform_utils.h"
#include "sql/optimizer/ob_raw_expr_pull_up_aggr_expr.h"
#include "sql/optimizer/ob_logical_operator.h"
#include "common/object/ob_object.h"
#include "common/ob_smart_call.h"
#include "share/config/ob_server_config.h"
using namespace oceanbase::sql;
using namespace oceanbase::common;
using namespace oceanbase::jit::expr;
namespace oceanbase {
namespace sql {
ObRawExpr* USELESS_POINTER = NULL;
void ObQualifiedName::format_qualified_name(ObNameCaseMode mode)
{
UNUSED(mode);
bool maybe_column = !is_sys_func();
for (int64_t i = 0; maybe_column && i < access_idents_.count(); ++i) {
if (access_idents_.at(i).access_name_.empty() || access_idents_.at(i).access_index_ != OB_INVALID_INDEX) {
maybe_column = false;
}
}
if (maybe_column && access_idents_.count() == 1) {
col_name_ = access_idents_.at(0).access_name_;
}
if (maybe_column && access_idents_.count() == 2) {
tbl_name_ = access_idents_.at(0).access_name_;
col_name_ = access_idents_.at(1).access_name_;
}
if (maybe_column && access_idents_.count() == 3) {
database_name_ = access_idents_.at(0).access_name_;
tbl_name_ = access_idents_.at(1).access_name_;
col_name_ = access_idents_.at(2).access_name_;
}
}
int ObQualifiedName::replace_access_ident_params(ObRawExpr* from, ObRawExpr* to)
{
int ret = common::OB_SUCCESS;
for (int64_t i = 0; OB_SUCC(ret) && i < access_idents_.count(); ++i) {
OZ(access_idents_.at(i).replace_params(from, to));
}
return ret;
}
int ObObjAccessIdent::extract_params(int64_t level, common::ObIArray<ObRawExpr*>& params) const
{
int ret = common::OB_SUCCESS;
for (int64_t i = 0; OB_SUCC(ret) && i < params_.count(); ++i) {
if (params_.at(i).second == level && OB_FAIL(params.push_back(params_.at(i).first))) {
LOG_WARN("push back error", K(ret));
}
}
return ret;
}
int ObObjAccessIdent::replace_params(ObRawExpr* from, ObRawExpr* to)
{
int ret = common::OB_SUCCESS;
for (int64_t i = 0; OB_SUCC(ret) && i < params_.count(); ++i) {
OZ(ObRawExprUtils::replace_ref_column(params_.at(i).first, from, to));
}
return ret;
}
int OrderItem::deep_copy(
ObRawExprFactory& expr_factory, const OrderItem& other, const uint64_t copy_types, bool use_new_allocator)
{
int ret = common::OB_SUCCESS;
order_type_ = other.order_type_;
if (OB_FAIL(ObRawExprUtils::copy_expr(expr_factory, other.expr_, expr_, copy_types, use_new_allocator))) {
LOG_WARN("failed to copy expr when copying OrderItem", K(ret));
}
return ret;
}
OB_SERIALIZE_MEMBER(ObVarInfo, type_, name_);
int ObVarInfo::deep_copy(common::ObIAllocator& allocator, ObVarInfo& var_info) const
{
int ret = OB_SUCCESS;
ObString clone_name;
if (OB_FAIL(ob_write_string(allocator, name_, clone_name))) {
LOG_WARN("fail to write string", K(name_), K(*this), K(ret));
} else {
var_info.type_ = type_;
var_info.name_ = clone_name;
}
return ret;
}
ObRawExpr::~ObRawExpr()
{
if (0x86427531 == magic_num_) {
LOG_ERROR("ObRawExpr maybe double free!");
}
magic_num_ = 0x86427531;
}
// This function is used to determine whether the expression itself or the parameter contains a non-constant expression
// The definition of a constant expression is an expression that requires a specific operator in the plan
// We agree that ObBinaryRefExpr must be generated by TableScan
// ObAggFunRawExpr must be generated by Groupby operator
// ObSetOpRawExpr must be generated by Set operator
// ObUnaryRefExpr (i.e. subquery ref) must be generated by SubPlanFilter
// PSEUDO_COLUMN is generally generated by CTE or hierarchical query
// SYS_CONNECT_BY_PATH,CONNECT_BY_ROOT is generated by cby nestloop join
bool ObRawExpr::has_generalized_column() const
{
return has_flag(CNT_COLUMN) || has_flag(CNT_AGG) || has_flag(CNT_SET_OP) || has_flag(CNT_SUB_QUERY) ||
has_flag(CNT_WINDOW_FUNC) || has_flag(CNT_ROWNUM) || has_flag(CNT_PSEUDO_COLUMN) || has_flag(CNT_SEQ_EXPR) ||
has_flag(CNT_SYS_CONNECT_BY_PATH) || has_flag(CNT_CONNECT_BY_ROOT);
}
bool ObRawExpr::has_enum_set_column() const
{
return has_flag(CNT_ENUM_OR_SET) || has_flag(CNT_SUB_QUERY);
}
bool ObRawExpr::has_specified_pseudocolumn() const
{
return has_flag(CNT_ROWNUM) || has_flag(CNT_PSEUDO_COLUMN);
}
bool ObRawExpr::is_generalized_column() const
{
return is_aggr_expr() || is_set_op_expr() || is_column_ref_expr() || is_query_ref_expr() || is_win_func_expr() ||
has_flag(IS_ROWNUM) || has_flag(IS_PSEUDO_COLUMN);
}
int ObRawExpr::assign(const ObRawExpr& other)
{
int ret = OB_SUCCESS;
if (OB_LIKELY(&other != this)) {
type_ = other.type_;
expr_class_ = other.expr_class_;
result_type_ = other.result_type_;
info_ = other.info_;
rel_ids_ = other.rel_ids_;
expr_levels_ = other.expr_levels_;
alias_column_name_ = other.alias_column_name_;
expr_name_ = other.expr_name_;
expr_level_ = other.expr_level_;
ref_count_ = other.ref_count_;
is_explicited_reference_ = other.is_explicited_reference_;
is_for_generated_column_ = other.is_for_generated_column_;
extra_ = other.extra_;
is_calculated_ = other.is_calculated_;
is_deterministic_ = other.is_deterministic_;
if (OB_FAIL(enum_set_values_.assign(other.enum_set_values_))) {
LOG_WARN("failed to assign enum set values", K(ret));
} else { /*do nothing*/
}
orig_expr_ = other.orig_expr_;
}
return ret;
}
int ObRawExpr::deep_copy(
ObRawExprFactory& expr_factory, const ObRawExpr& other, const uint64_t copy_types, bool use_new_allocator)
{
int ret = OB_SUCCESS;
UNUSED(expr_factory);
UNUSED(copy_types);
if (OB_LIKELY(&other != this)) {
if (use_new_allocator) {
if (OB_ISNULL(inner_alloc_)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("inner allocator or expr factory is NULL", K(inner_alloc_), K(ret));
} else if (OB_FAIL(ob_write_string(*inner_alloc_, other.alias_column_name_, alias_column_name_))) {
LOG_WARN("fail to write string", K(other.alias_column_name_), K(ret));
} else if (OB_FAIL(ob_write_string(*inner_alloc_, other.expr_name_, expr_name_))) {
LOG_WARN("fail to write string", K(other.expr_name_), K(ret));
} else {
result_type_ = other.result_type_;
ObObj param;
if (OB_FAIL(deep_copy_obj(*inner_alloc_, other.result_type_.get_param(), param))) {
LOG_WARN("deep copy error", K(param), K(ret));
} else {
result_type_.set_param(param);
}
for (int64_t i = 0; OB_SUCC(ret) && i < enum_set_values_.count(); i++) {
ObString tmp_str;
if (OB_FAIL(ob_write_string(*inner_alloc_, other.enum_set_values_.at(i), tmp_str))) {
LOG_WARN("fail to write string", K(ret), K(other.enum_set_values_), K(i));
} else if (OB_FAIL(enum_set_values_.push_back(tmp_str))) {
LOG_WARN("fail to push back str", K(tmp_str), K(ret));
}
}
}
} else {
alias_column_name_ = other.alias_column_name_;
expr_name_ = other.expr_name_;
result_type_ = other.result_type_;
if (OB_FAIL(enum_set_values_.assign(other.enum_set_values_))) {
LOG_WARN("failed to assign enum set values", K(ret));
} else { /*do nothing*/
}
}
type_ = other.type_;
expr_class_ = other.expr_class_;
info_ = other.info_;
rel_ids_ = other.rel_ids_;
expr_levels_ = other.expr_levels_;
expr_level_ = other.expr_level_;
ref_count_ = other.ref_count_;
is_explicited_reference_ = other.is_explicited_reference_;
is_for_generated_column_ = other.is_for_generated_column_;
extra_ = other.extra_;
is_calculated_ = other.is_calculated_;
is_deterministic_ = other.is_deterministic_;
if (OB_FAIL(enum_set_values_.assign(other.enum_set_values_))) {
LOG_WARN("failed to assign enum set values", K(ret));
} else if (OB_NOT_NULL(other.orig_expr_) &&
OB_FAIL(ObRawExprUtils::copy_expr(
expr_factory, other.orig_expr_, orig_expr_, copy_types, use_new_allocator))) {
LOG_WARN("failed to copy orig expr", K(ret));
}
}
return ret;
}
int ObRawExpr::replace_expr(const ObIArray<ObRawExpr*>& other_exprs, const ObIArray<ObRawExpr*>& new_exprs)
{
int ret = OB_SUCCESS;
UNUSED(other_exprs);
UNUSED(new_exprs);
return ret;
}
void ObRawExpr::reset()
{
type_ = T_INVALID;
info_.reset();
rel_ids_.reset();
set_data_type(ObMaxType);
expr_level_ = -1;
ref_count_ = 0;
is_explicited_reference_ = false;
is_for_generated_column_ = false;
is_calculated_ = false;
is_deterministic_ = true;
}
int ObRawExpr::get_name(char* buf, const int64_t buf_len, int64_t& pos, ExplainType type) const
{
int ret = OB_SUCCESS;
if (OB_NOT_NULL(orig_expr_) && EXPLAIN_DBLINK_STMT == type) {
if (OB_FAIL(orig_expr_->get_name(buf, buf_len, pos, type))) {
LOG_WARN("fail to get name for orig expr", K(ret));
}
} else {
if (OB_FAIL(get_name_internal(buf, buf_len, pos, type))) {
LOG_WARN("fail to get_name", K(buf_len), K(pos), K(ret));
}
}
return ret;
}
int ObRawExpr::get_type_and_length(char* buf, const int64_t buf_len, int64_t& pos, ExplainType type) const
{
int ret = OB_SUCCESS;
if (EXPLAIN_EXTENDED == type || EXPLAIN_EXTENDED_NOADDR == type) {
const char* type_str = common::ob_obj_type_str(get_data_type());
if (nullptr == type_str || strlen(type_str) > INT32_MAX) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("some error happend");
} else {
int str_length = (int)strlen(type_str);
int32_t out_data = get_accuracy().get_precision();
bool output_length = ob_is_accuracy_length_valid_tc(get_data_type());
if (output_length) {
out_data = get_accuracy().get_length();
}
if (OB_FAIL(BUF_PRINTF(", %.*s, %d", str_length, type_str, out_data))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else {
}
}
} else {
// do nothing
}
return ret;
}
int ObRawExpr::extract_info()
{
// LOG_DEBUG("extract_info", "usec", ObSQLUtils::get_usec());
// scope may be NULL, do not check
int ret = OB_SUCCESS;
ObRawExprInfoExtractor extractor;
if (OB_FAIL(extractor.analyze(*this))) {
LOG_WARN("fail to analyze", K(ret));
}
// LOG_DEBUG("extractor_info", "usec", ObSQLUtils::get_usec());
return ret;
}
int ObRawExpr::deduce_type(const ObSQLSessionInfo* session_info)
{
// LOG_DEBUG("deduce_type", "usec", ObSQLUtils::get_usec());
int ret = OB_SUCCESS;
ObRawExprDeduceType expr_deducer(session_info);
expr_deducer.set_expr_factory(expr_factory_);
if (OB_FAIL(expr_deducer.deduce(*this))) {
LOG_WARN("fail to deduce", K(ret));
}
// LOG_DEBUG("deduce_type", "usec", ObSQLUtils::get_usec());
return ret;
}
int ObRawExpr::formalize(const ObSQLSessionInfo* session_info)
{
int ret = OB_SUCCESS;
if (OB_FAIL(extract_info())) {
LOG_WARN("failed to extract info", K(*this));
} else if (OB_FAIL(deduce_type(session_info))) {
LOG_WARN("failed to deduce type", K(*this));
} else {
}
return ret;
}
int ObRawExpr::pull_relation_id_and_levels(int32_t cur_stmt_level)
{
int ret = OB_SUCCESS;
ObExprRelationAnalyzer expr_relation_analyzer;
if (OB_FAIL(expr_relation_analyzer.pull_expr_relation_id_and_levels(this, cur_stmt_level))) {
LOG_WARN("pull expr failed", K(cur_stmt_level), K(ret));
}
return ret;
}
int ObRawExpr::add_child_flags(const ObExprInfo& flags)
{
int ret = OB_SUCCESS;
ObExprInfo tmp = flags;
if (INHERIT_MASK_BEGIN < tmp.bit_count()) {
int64_t mask_end =
INHERIT_MASK_END < tmp.bit_count() ? static_cast<int64_t>(INHERIT_MASK_END) : tmp.bit_count() - 1;
if (tmp.do_mask(INHERIT_MASK_BEGIN, mask_end)) {
LOG_WARN("failed to do mask", K(ret));
} else if (OB_FAIL(info_.add_members(tmp))) {
LOG_WARN("failed to add expr info", K(ret));
}
}
for (int32_t i = 0; OB_SUCC(ret) && i <= IS_INFO_MASK_END; ++i) {
if (flags.has_member(i)) {
if (OB_FAIL(info_.add_member(i + CNT_INFO_MASK_BEGIN))) {
LOG_WARN("failed to add member", K(i), K(ret));
}
}
}
return ret;
}
int ObRawExpr::set_expr_name(const common::ObString& expr_name)
{
int ret = OB_SUCCESS;
if (OB_ISNULL(inner_alloc_)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("inner allocator or expr factory is NULL", K(inner_alloc_), K(ret));
} else if (OB_FAIL(ob_write_string(*inner_alloc_, expr_name, expr_name_))) {
LOG_WARN("write string failed", K(ret));
}
return ret;
}
int ObRawExpr::preorder_accept(ObRawExprVisitor& visitor)
{
int ret = OB_SUCCESS;
if (OB_FAIL(do_visit(visitor))) {
LOG_WARN("visit failed", K(ret), "type", get_expr_type(), "name", get_type_name(get_expr_type()));
} else {
if (!skip_visit_child() && !visitor.skip_child(*this)) {
const int64_t cnt = get_param_count();
for (int64_t i = 0; i < cnt && OB_SUCC(ret); i++) {
ObRawExpr* e = get_param_expr(i);
if (NULL == e) {
LOG_WARN("null param expr returned", K(ret), K(i), K(cnt));
} else if (OB_FAIL(SMART_CALL(e->preorder_accept(visitor)))) {
LOG_WARN("child visit failed", K(ret), K(i), "type", get_expr_type(), "name", get_type_name(get_expr_type()));
}
}
}
}
return ret;
}
int ObRawExpr::postorder_accept(ObRawExprVisitor& visitor)
{
int ret = OB_SUCCESS;
if (!skip_visit_child() && !visitor.skip_child(*this)) {
const int64_t cnt = get_param_count();
for (int64_t i = 0; i < cnt && OB_SUCC(ret); i++) {
ObRawExpr* e = get_param_expr(i);
if (NULL == e) {
LOG_WARN("null param expr returned", K(ret), K(i), K(cnt));
} else if (OB_FAIL(SMART_CALL(e->postorder_accept(visitor)))) {
LOG_WARN("child visit failed", K(ret), K(i), "type", get_expr_type(), "name", get_type_name(get_expr_type()));
}
}
}
if (OB_SUCC(ret)) {
if (OB_FAIL(do_visit(visitor))) {
LOG_WARN("visit failed", K(ret), "type", get_expr_type(), "name", get_type_name(get_expr_type()));
}
}
return ret;
}
int ObRawExpr::postorder_replace(ObRawExprVisitor& visitor)
{
int ret = OB_SUCCESS;
ObRawExprPullUpAggrExpr& pull_up_visitor = *static_cast<ObRawExprPullUpAggrExpr*>(&visitor);
if (!skip_visit_child() && !visitor.skip_child(*this)) {
const int64_t cnt = get_param_count();
for (int64_t i = 0; i < cnt && OB_SUCC(ret); i++) {
ObRawExpr* e = get_param_expr(i);
if (NULL == e) {
LOG_WARN("null param expr returned", K(ret), K(i), K(cnt));
} else if (OB_FAIL(SMART_CALL(e->postorder_replace(visitor)))) {
LOG_WARN("child visit failed", K(ret), K(i), "type", get_expr_type(), "name", get_type_name(get_expr_type()));
} else {
e = pull_up_visitor.get_new_expr();
}
}
}
if (OB_SUCC(ret)) {
if (OB_FAIL(do_visit(visitor))) {
LOG_WARN("visit failed", K(ret), "type", get_expr_type(), "name", get_type_name(get_expr_type()));
}
}
return ret;
}
////////////////////////////////////////////////////////////////
ObRawExpr*& ObTerminalRawExpr::get_param_expr(int64_t index)
{
UNUSED(index);
return USELESS_POINTER;
}
int ObRawExpr::set_enum_set_values(const common::ObIArray<common::ObString>& values)
{
int ret = OB_SUCCESS;
if (OB_FAIL(enum_set_values_.assign(values))) {
LOG_WARN("failed to assign array", K(ret));
}
return ret;
}
////////////////////////////////////////////////////////////////
int ObConstRawExpr::assign(const ObConstRawExpr& other)
{
int ret = OB_SUCCESS;
if (OB_LIKELY(this != &other)) {
if (OB_FAIL(ObTerminalRawExpr::assign(other))) {
LOG_WARN("copy in Base class ObTerminalRawExpr failed", K(ret));
} else {
value_ = other.get_value();
literal_prefix_ = other.get_literal_prefix();
obj_meta_ = other.get_expr_obj_meta();
}
}
return ret;
}
int ObConstRawExpr::deep_copy(
ObRawExprFactory& expr_factory, const ObConstRawExpr& other, const uint64_t copy_types, bool use_new_allocator)
{
int ret = OB_SUCCESS;
if (OB_LIKELY(this != &other)) {
if (OB_FAIL(ObTerminalRawExpr::deep_copy(expr_factory, other, copy_types, use_new_allocator))) {
LOG_WARN("copy in Base class ObTerminalRawExpr failed", K(ret));
} else if (use_new_allocator) {
if (OB_ISNULL(inner_alloc_)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("inner allocator is NULL", K(ret));
} else if (OB_FAIL(deep_copy_obj(*inner_alloc_, other.value_, value_))) {
LOG_WARN("deep copy error", K(value_), K(ret));
} else {
if (other.literal_prefix_.empty()) {
literal_prefix_.reset();
} else {
char* buf = NULL;
if (OB_ISNULL(buf = static_cast<char*>(inner_alloc_->alloc(other.literal_prefix_.length())))) {
ret = OB_ALLOCATE_MEMORY_FAILED;
LOG_ERROR("Fail to allocate memory, ", "size", other.literal_prefix_.length(), K(ret));
} else {
literal_prefix_.assign_buffer(buf, other.literal_prefix_.length());
literal_prefix_.write(other.literal_prefix_.ptr(), other.literal_prefix_.length());
}
}
obj_meta_ = other.get_expr_obj_meta();
}
} else {
value_ = other.get_value();
literal_prefix_ = other.get_literal_prefix();
obj_meta_ = other.get_expr_obj_meta();
}
}
return ret;
}
int ObConstRawExpr::replace_expr(const ObIArray<ObRawExpr*>& other_exprs, const ObIArray<ObRawExpr*>& new_exprs)
{
int ret = OB_SUCCESS;
if (OB_FAIL(ObTerminalRawExpr::replace_expr(other_exprs, new_exprs))) {
LOG_WARN("failed to replace expr", K(ret));
} else { /*do nothing*/
}
return ret;
}
void ObConstRawExpr::set_value(const ObObj& val)
{
set_meta_type(val.get_meta());
set_expr_obj_meta(val.get_meta());
value_ = val;
}
void ObConstRawExpr::set_literal_prefix(const ObString& name)
{
literal_prefix_ = name;
}
void ObConstRawExpr::reset()
{
ObRawExpr::reset();
value_.reset();
literal_prefix_.reset();
}
void ObConstRawExpr::set_is_date_unit()
{
is_date_unit_ = true;
}
void ObConstRawExpr::reset_is_date_unit()
{
is_date_unit_ = false;
}
uint64_t ObConstRawExpr::hash_internal(uint64_t seed) const
{
return value_.hash(seed);
}
bool ObConstRawExpr::same_as(const ObRawExpr& expr, ObExprEqualCheckContext* check_context) const
{
bool bool_ret = false;
if (check_context != NULL && check_context->override_const_compare_) {
if (expr.is_const_expr()) {
bool_ret = check_context->compare_const(*this, static_cast<const ObConstRawExpr&>(expr));
}
} else if (get_expr_type() != expr.get_expr_type()) {
// what are you doing ?
if (NULL != check_context) {
if (expr.is_const_expr()) {
if (T_QUESTIONMARK == expr.get_expr_type()) {
bool_ret = true;
const ObConstRawExpr* c_expr = static_cast<const ObConstRawExpr*>(&expr);
int64_t param_idx = -1;
int& ret = check_context->err_code_;
if (OB_FAIL(c_expr->get_value().get_unknown(param_idx))) {
LOG_WARN("Failed to get param", K(ret));
} else if (OB_FAIL(check_context->param_expr_.push_back(
ObExprEqualCheckContext::ParamExprPair(param_idx, this)))) {
LOG_WARN("Failed to add param expr pair", K(ret));
} else {
}
}
}
}
} else {
const ObConstRawExpr* c_expr = static_cast<const ObConstRawExpr*>(&expr);
if (get_value().get_meta() != c_expr->get_value().get_meta()) {
bool_ret = false;
} else if (get_value().is_equal(c_expr->get_value(), CS_TYPE_BINARY)) {
bool_ret = true;
}
}
return bool_ret;
}
bool ObExprEqualCheckContext::compare_const(const ObConstRawExpr& left, const ObConstRawExpr& right)
{
int& ret = err_code_;
bool result = false;
if (left.get_result_type() == right.get_result_type()) {
const ObObj& this_value = left.get_value().is_unknown() ? left.get_result_type().get_param() : left.get_value();
const ObObj& other_value = right.get_value().is_unknown() ? right.get_result_type().get_param() : right.get_value();
result = this_value.is_equal(other_value, CS_TYPE_BINARY);
}
if (OB_SUCC(ret) && result && left.get_value().is_unknown()) {
if (OB_FAIL(add_param_pair(left.get_value().get_unknown(), NULL))) {
LOG_WARN("add param pair failed", K(ret));
}
}
if (OB_SUCC(ret) && result && right.get_value().is_unknown()) {
if (OB_FAIL(add_param_pair(right.get_value().get_unknown(), NULL))) {
LOG_WARN("add param pair failed", K(ret));
}
}
return result;
}
int ObConstRawExpr::do_visit(ObRawExprVisitor& visitor)
{
return visitor.visit(*this);
}
int ObConstRawExpr::get_name_internal(char* buf, const int64_t buf_len, int64_t& pos, ExplainType type) const
{
int ret = OB_SUCCESS;
UNUSED(type);
if (get_value().is_unknown()) {
if (EXPLAIN_DBLINK_STMT != type) {
if (OB_FAIL(get_value().print_plain_str_literal(buf, buf_len, pos))) {
LOG_WARN("fail to print_sql_literal", K(get_value()), K(ret));
}
} else {
if (OB_FAIL(ObLinkStmtParam::write(buf, buf_len, pos, get_value().get_unknown()))) {
LOG_WARN("fail to write param to buf", K(ret));
}
}
} else {
if (OB_FAIL(get_value().print_sql_literal(buf, buf_len, pos))) {
LOG_WARN("fail to print_sql_literal", K(get_value()), K(ret));
}
}
return ret;
}
int64_t ObConstRawExpr::to_string(char* buf, const int64_t buf_len) const
{
int64_t pos = 0;
J_OBJ_START();
J_KV(N_ITEM_TYPE, type_, N_RESULT_TYPE, result_type_, N_EXPR_INFO, info_, N_REL_ID, rel_ids_, N_VALUE, value_);
if (!literal_prefix_.empty()) {
J_COMMA();
J_KV(K_(literal_prefix));
}
J_OBJ_END();
return pos;
}
////////////////////////////////////////////////////////////////
int ObVarRawExpr::assign(const ObVarRawExpr& other)
{
int ret = OB_SUCCESS;
if (OB_LIKELY(this != &other)) {
if (OB_FAIL(ObTerminalRawExpr::assign(other))) {
LOG_WARN("failed to assign terminal raw expr", K(ret));
} else {
result_type_assigned_ = other.result_type_assigned_;
}
}
return ret;
}
int ObVarRawExpr::deep_copy(
ObRawExprFactory& expr_factory, const ObVarRawExpr& other, const uint64_t copy_types, bool use_new_allocator)
{
int ret = OB_SUCCESS;
if (OB_LIKELY(this != &other)) {
if (OB_FAIL(ObTerminalRawExpr::deep_copy(expr_factory, other, copy_types, use_new_allocator))) {
LOG_WARN("copy in Base class ObTerminalRawExpr failed", K(ret));
} else {
result_type_assigned_ = other.result_type_assigned_;
}
}
return ret;
}
int ObVarRawExpr::replace_expr(const ObIArray<ObRawExpr*>& other_exprs, const ObIArray<ObRawExpr*>& new_exprs)
{
int ret = OB_SUCCESS;
if (OB_FAIL(ObTerminalRawExpr::replace_expr(other_exprs, new_exprs))) {
LOG_WARN("failed to replace expr", K(ret));
} else { /*do nothing*/
}
return ret;
}
bool ObVarRawExpr::same_as(const ObRawExpr& expr, ObExprEqualCheckContext* check_context) const
{
UNUSED(check_context);
return expr.is_var_expr() && get_expr_type() == expr.get_expr_type() && get_result_type() == expr.get_result_type();
}
int ObVarRawExpr::get_name_internal(char* buf, const int64_t buf_len, int64_t& pos, ExplainType type) const
{
int ret = OB_SUCCESS;
UNUSED(type);
if (OB_FAIL(databuff_printf(buf, buf_len, pos, "%s", get_type_name(type_)))) {
LOG_WARN("databuff print failed", K(ret));
}
return ret;
}
int ObVarRawExpr::do_visit(ObRawExprVisitor& visitor)
{
return visitor.visit(*this);
}
////////////////////////////////////////////////////////////////
int ObUserVarIdentRawExpr::assign(const ObUserVarIdentRawExpr& other)
{
int ret = OB_SUCCESS;
if (OB_LIKELY(this != &other)) {
if (OB_FAIL(ObConstRawExpr::assign(other))) {
LOG_WARN("failed to assign const raw expr", K(ret));
} else {
is_contain_assign_ = other.is_contain_assign_;
query_has_udf_ = other.query_has_udf_;
}
}
return ret;
}
int ObUserVarIdentRawExpr::deep_copy(ObRawExprFactory& expr_factory, const ObUserVarIdentRawExpr& other,
const uint64_t copy_types, bool use_new_allocator)
{
int ret = OB_SUCCESS;
if (OB_LIKELY(this != &other)) {
if (OB_FAIL(ObConstRawExpr::deep_copy(expr_factory, other, copy_types, use_new_allocator))) {
LOG_WARN("copy in Base class ObTerminalRawExpr failed", K(ret));
} else {
is_contain_assign_ = other.is_contain_assign_;
query_has_udf_ = other.query_has_udf_;
}
}
return ret;
}
int ObUserVarIdentRawExpr::replace_expr(const ObIArray<ObRawExpr*>& other_exprs, const ObIArray<ObRawExpr*>& new_exprs)
{
int ret = OB_SUCCESS;
if (OB_FAIL(ObTerminalRawExpr::replace_expr(other_exprs, new_exprs))) {
LOG_WARN("failed to replace expr", K(ret));
} else { /*do nothing*/
}
return ret;
}
void ObUserVarIdentRawExpr::reset()
{
ObConstRawExpr::reset();
is_contain_assign_ = false;
}
uint64_t ObUserVarIdentRawExpr::hash_internal(uint64_t seed) const
{
seed = value_.hash(seed);
seed = common::do_hash(is_contain_assign_, seed);
return seed;
}
bool ObUserVarIdentRawExpr::same_as(const ObRawExpr& expr, ObExprEqualCheckContext* check_context) const
{
bool bool_ret = false;
UNUSED(check_context);
if (get_expr_type() == expr.get_expr_type()) {
const ObUserVarIdentRawExpr* user_var_expr = static_cast<const ObUserVarIdentRawExpr*>(&expr);
if (get_value().get_meta() != user_var_expr->get_value().get_meta()) {
bool_ret = false;
} else if (get_value().is_equal(user_var_expr->get_value(), CS_TYPE_BINARY)) {
bool_ret = (get_is_contain_assign() == user_var_expr->get_is_contain_assign());
}
}
return bool_ret;
}
bool ObUserVarIdentRawExpr::is_same_variable(const ObObj& obj) const
{
bool bool_ret = false;
if (get_value().get_meta() == obj.get_meta() && get_value().is_equal(obj, CS_TYPE_BINARY)) {
bool_ret = true;
}
return bool_ret;
}
int ObUserVarIdentRawExpr::do_visit(ObRawExprVisitor& visitor)
{
return visitor.visit(*this);
}
int64_t ObUserVarIdentRawExpr::to_string(char* buf, const int64_t buf_len) const
{
int64_t pos = 0;
J_OBJ_START();
J_KV(N_ITEM_TYPE,
type_,
N_RESULT_TYPE,
result_type_,
N_EXPR_INFO,
info_,
N_REL_ID,
rel_ids_,
N_VALUE,
value_,
"is_contain_assign",
is_contain_assign_,
"query_has_udf",
query_has_udf_);
J_OBJ_END();
return pos;
}
////////////////////////////////////////////////////////////////
int ObQueryRefRawExpr::assign(const ObQueryRefRawExpr& other)
{
int ret = OB_SUCCESS;
if (OB_LIKELY(this != &other)) {
if (OB_FAIL(ObTerminalRawExpr::assign(other))) {
LOG_WARN("copy in Base class ObTerminalRawExpr failed", K(ret));
} else if (OB_FAIL(column_types_.assign(other.column_types_))) {
LOG_WARN("failed to copy column types", K(ret));
} else {
ref_id_ = other.ref_id_;
if (OB_STMT == other.ref_type_) {
set_ref_stmt(other.ref_stmt_);
} else if (OB_LOGICAL_OPERATOR == other.ref_type_) {
set_ref_operator(other.ref_operator_);
} else { /* Do nothing */
}
output_column_ = other.output_column_;
is_set_ = other.is_set_;
column_types_ = other.column_types_;
}
}
return ret;
}
int ObQueryRefRawExpr::deep_copy(
ObStmtFactory& stmt_factory, ObRawExprFactory& expr_factory, const ObQueryRefRawExpr& other)
{
int ret = OB_SUCCESS;
ObSelectStmt* temp_ref_stmt = NULL;
if (OB_ISNULL(other.get_ref_stmt())) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("null stmt", K(ret));
} else if (OB_FAIL(ObTerminalRawExpr::assign(other))) {
LOG_WARN("failed to copy row expr", K(ret));
} else if (OB_FAIL(stmt_factory.create_stmt(temp_ref_stmt)) || OB_ISNULL(temp_ref_stmt)) {
LOG_WARN("failed to create statement", K(ret));
} else if (OB_FAIL(temp_ref_stmt->deep_copy(stmt_factory, expr_factory, *other.get_ref_stmt()))) {
LOG_WARN("failed to deep copy stmt", K(ret));
} else if (OB_FAIL(column_types_.assign(other.column_types_))) {
LOG_WARN("failed to assign copy types", K(ret));
} else {
ref_id_ = other.ref_id_;
output_column_ = other.output_column_;
is_set_ = other.is_set_;
set_ref_stmt(temp_ref_stmt);
}
return ret;
}
int ObQueryRefRawExpr::replace_expr(const ObIArray<ObRawExpr*>& other_exprs, const ObIArray<ObRawExpr*>& new_exprs)
{
int ret = OB_SUCCESS;
if (OB_FAIL(ObTerminalRawExpr::replace_expr(other_exprs, new_exprs))) {
LOG_WARN("failed to replace expr", K(ret));
} else { /*do nothing*/
}
return ret;
}
ObSelectStmt* ObQueryRefRawExpr::get_ref_stmt()
{
ObSelectStmt* stmt = NULL;
if (is_ref_stmt()) {
stmt = ref_stmt_;
} else if (is_ref_operator() && NULL != get_ref_operator() && NULL != get_ref_operator()->get_stmt() &&
get_ref_operator()->get_stmt()->is_select_stmt()) {
stmt = static_cast<ObSelectStmt*>(get_ref_operator()->get_stmt());
}
return stmt;
}
const ObSelectStmt* ObQueryRefRawExpr::get_ref_stmt() const
{
const ObSelectStmt* stmt = NULL;
if (is_ref_stmt()) {
stmt = ref_stmt_;
} else if (is_ref_operator() && NULL != get_ref_operator() && NULL != get_ref_operator()->get_stmt() &&
get_ref_operator()->get_stmt()->is_select_stmt()) {
stmt = static_cast<const ObSelectStmt*>(get_ref_operator()->get_stmt());
}
return stmt;
}
void ObQueryRefRawExpr::reset()
{
ObTerminalRawExpr::reset();
ref_id_ = OB_INVALID_ID;
}
bool ObQueryRefRawExpr::same_as(const ObRawExpr& expr, ObExprEqualCheckContext* check_context) const
{
bool bool_ret = false;
if (get_expr_type() == expr.get_expr_type()) {
const ObQueryRefRawExpr& u_expr = static_cast<const ObQueryRefRawExpr&>(expr);
if (check_context != NULL && check_context->override_query_compare_) {
bool_ret = check_context->compare_query(*this, u_expr);
} else {
// very tricky, check the definition of ref_stmt_ and get_ref_stmt()
bool_ret = (get_ref_id() == u_expr.get_ref_id() && ref_stmt_ == u_expr.ref_stmt_);
}
}
return bool_ret;
}
bool ObExprEqualCheckContext::compare_query(const ObQueryRefRawExpr& left, const ObQueryRefRawExpr& right)
{
return left.get_ref_id() == right.get_ref_id() && left.get_ref_stmt() == right.get_ref_stmt();
}
int ObQueryRefRawExpr::do_visit(ObRawExprVisitor& visitor)
{
return visitor.visit(*this);
}
int ObQueryRefRawExpr::get_name_internal(char* buf, const int64_t buf_len, int64_t& pos, ExplainType type) const
{
int ret = OB_SUCCESS;
if (OB_FAIL(BUF_PRINTF("subquery(%lu)", ref_id_))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (EXPLAIN_EXTENDED == type) {
if (OB_FAIL(BUF_PRINTF("("))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (OB_FAIL(BUF_PRINTF("%p", this))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (OB_FAIL(BUF_PRINTF(")"))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else {
}
}
return ret;
}
////////////////////////////////////////////////////////////////
void ObColumnRefRawExpr::set_column_attr(const ObString& table_name, const ObString& column_name)
{
/* NOTE: we just point to the buffer without owning it. */
table_name_.assign_ptr(table_name.ptr(), table_name.length());
column_name_.assign_ptr(column_name.ptr(), column_name.length());
}
int ObColumnRefRawExpr::assign(const ObColumnRefRawExpr& other)
{
int ret = OB_SUCCESS;
if (OB_LIKELY(this != &other)) {
if (OB_FAIL(ObTerminalRawExpr::assign(other))) {
LOG_WARN("copy in Base class ObTerminalRawExpr failed", K(ret));
} else {
table_id_ = other.table_id_;
column_id_ = other.column_id_;
database_name_ = other.database_name_;
table_name_ = other.table_name_;
column_name_ = other.column_name_;
expr_level_ = other.expr_level_;
column_flags_ = other.column_flags_;
dependant_expr_ = other.dependant_expr_;
real_expr_ = other.real_expr_;
is_unpivot_mocked_column_ = other.is_unpivot_mocked_column_;
is_hidden_ = other.is_hidden_;
}
}
return ret;
}
uint64_t ObColumnRefRawExpr::hash_internal(uint64_t seed) const
{
seed = common::do_hash(table_id_, seed);
seed = common::do_hash(column_id_, seed);
return seed;
}
int ObColumnRefRawExpr::deep_copy(
ObRawExprFactory& expr_factory, const ObColumnRefRawExpr& other, bool use_new_allocator)
{
int ret = OB_SUCCESS;
if (OB_LIKELY(this != &other)) {
if (OB_FAIL(ObTerminalRawExpr::deep_copy(expr_factory, other, COPY_REF_DEFAULT, use_new_allocator))) {
LOG_WARN("copy in Base class ObTerminalRawExpr failed", K(ret));
} else {
table_id_ = other.table_id_;
column_id_ = other.column_id_;
expr_level_ = other.expr_level_;
column_flags_ = other.column_flags_;
is_unpivot_mocked_column_ = other.is_unpivot_mocked_column_;
is_hidden_ = other.is_hidden_;
is_lob_column_ = other.is_lob_column_;
if (use_new_allocator) {
if (OB_ISNULL(inner_alloc_)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("inner allocator or expr factory is NULL", K(inner_alloc_), K(ret));
} else if (OB_FAIL(ob_write_string(*inner_alloc_, other.database_name_, database_name_))) {
LOG_WARN("fail to write string", K(other.database_name_), K(ret));
} else if (OB_FAIL(ob_write_string(*inner_alloc_, other.table_name_, table_name_))) {
LOG_WARN("fail to write string", K(other.table_name_), K(ret));
} else if (OB_FAIL(ob_write_string(*inner_alloc_, other.synonym_name_, synonym_name_))) {
LOG_WARN("fail to write string", K(other.synonym_name_), K(ret));
} else if (OB_FAIL(ob_write_string(*inner_alloc_, other.synonym_db_name_, synonym_db_name_))) {
LOG_WARN("fail to write string", K(other.synonym_name_), K(ret));
} else if (OB_FAIL(ob_write_string(*inner_alloc_, other.column_name_, column_name_))) {
LOG_WARN("fail to write string", K(other.column_name_), K(ret));
} else { /*do nothing*/
}
} else {
database_name_ = other.database_name_;
table_name_ = other.table_name_;
synonym_name_ = other.synonym_name_;
synonym_db_name_ = other.synonym_db_name_;
column_name_ = other.column_name_;
}
if (OB_SUCC(ret) && other.dependant_expr_ != NULL) {
ObRawExpr* temp_expr = NULL;
if (OB_FAIL(ObRawExprUtils::copy_expr(
expr_factory, other.get_dependant_expr(), temp_expr, COPY_REF_DEFAULT, use_new_allocator))) {
LOG_WARN("failed to deep copy expr", K(ret));
} else {
dependant_expr_ = temp_expr;
}
}
if (OB_SUCC(ret) && other.real_expr_ != NULL) {
ObRawExpr* temp_expr = NULL;
if (OB_FAIL(ObRawExprUtils::copy_expr(
expr_factory, other.real_expr_, temp_expr, COPY_REF_DEFAULT, use_new_allocator))) {
LOG_WARN("failed to deep copy expr", K(ret));
} else {
real_expr_ = temp_expr;
}
}
}
}
return ret;
}
int ObColumnRefRawExpr::replace_expr(const ObIArray<ObRawExpr*>& other_exprs, const ObIArray<ObRawExpr*>& new_exprs)
{
int ret = OB_SUCCESS;
if (OB_FAIL(ObTerminalRawExpr::replace_expr(other_exprs, new_exprs))) {
LOG_WARN("failed to replace expr", K(ret));
} else if (NULL != dependant_expr_ &&
OB_FAIL(ObTransformUtils::replace_expr(other_exprs, new_exprs, dependant_expr_))) {
LOG_WARN("failed to replace dependant exprs", K(ret));
} else if (NULL != real_expr_ && OB_FAIL(ObTransformUtils::replace_expr(other_exprs, new_exprs, real_expr_))) {
LOG_WARN("failed to replace dependant exprs", K(ret));
} else { /*do nothing*/
}
return ret;
}
void ObColumnRefRawExpr::reset()
{
ObTerminalRawExpr::reset();
table_id_ = OB_INVALID_ID;
column_id_ = OB_INVALID_ID;
database_name_.reset();
table_name_.reset();
column_name_.reset();
}
bool ObColumnRefRawExpr::same_as(const ObRawExpr& expr, ObExprEqualCheckContext* check_context) const
{
UNUSED(check_context);
bool bool_ret = false;
if (get_expr_type() != expr.get_expr_type()) {
} else if (OB_UNLIKELY(check_context != NULL) && OB_UNLIKELY(check_context->override_column_compare_)) {
// use new column compare method
bool_ret = check_context->compare_column(*this, static_cast<const ObColumnRefRawExpr&>(expr));
} else {
const ObColumnRefRawExpr* b_expr = static_cast<const ObColumnRefRawExpr*>(&expr);
if (this->get_table_id() == b_expr->get_table_id() && this->get_column_id() == b_expr->get_column_id()) {
bool_ret = true;
}
}
return bool_ret;
}
bool ObExprEqualCheckContext::compare_column(const ObColumnRefRawExpr& left, const ObColumnRefRawExpr& right)
{
return left.get_result_type() == right.get_result_type();
}
int ObColumnRefRawExpr::do_visit(ObRawExprVisitor& visitor)
{
return visitor.visit(*this);
}
int ObColumnRefRawExpr::get_name_internal(char* buf, const int64_t buf_len, int64_t& pos, ExplainType type) const
{
int ret = OB_SUCCESS;
if (EXPLAIN_DBLINK_STMT == type) {
if (!table_name_.empty() && OB_FAIL(BUF_PRINTF("%.*s.", table_name_.length(), table_name_.ptr()))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (OB_FAIL(BUF_PRINTF("%.*s", column_name_.length(), column_name_.ptr()))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
}
} else {
if (OB_FAIL(BUF_PRINTF(
"%.*s.%.*s", table_name_.length(), table_name_.ptr(), column_name_.length(), column_name_.ptr()))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else {
if (EXPLAIN_EXTENDED == type) {
if (OB_FAIL(BUF_PRINTF("("))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (OB_FAIL(BUF_PRINTF("%p", this))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (OB_FAIL(BUF_PRINTF(")"))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else {
}
}
}
}
return ret;
}
const ObRawExpr* ObAliasRefRawExpr::get_ref_expr() const
{
const ObRawExpr* ret = NULL;
if (project_index_ == OB_INVALID_INDEX) {
ret = ref_expr_;
} else if (ref_expr_->is_query_ref_expr()) {
ObQueryRefRawExpr* subquery = static_cast<ObQueryRefRawExpr*>(ref_expr_);
ObSelectStmt* stmt = NULL;
if (OB_ISNULL(stmt = subquery->get_ref_stmt()) ||
OB_UNLIKELY(project_index_ < 0 || project_index_ >= stmt->get_select_item_size())) {
// do nothing
} else {
ret = stmt->get_select_item(project_index_).expr_;
}
}
return ret;
}
ObRawExpr* ObAliasRefRawExpr::get_ref_expr()
{
ObRawExpr* ret = NULL;
if (project_index_ == OB_INVALID_INDEX) {
ret = ref_expr_;
} else if (ref_expr_->is_query_ref_expr()) {
ObQueryRefRawExpr* subquery = static_cast<ObQueryRefRawExpr*>(ref_expr_);
ObSelectStmt* stmt = NULL;
if (OB_ISNULL(stmt = subquery->get_ref_stmt()) ||
OB_UNLIKELY(project_index_ < 0 || project_index_ >= stmt->get_select_item_size())) {
// do nothing
} else {
ret = stmt->get_select_item(project_index_).expr_;
}
}
return ret;
}
int ObAliasRefRawExpr::assign(const ObAliasRefRawExpr& other)
{
int ret = OB_SUCCESS;
if (OB_LIKELY(this != &other)) {
if (OB_FAIL(ObRawExpr::assign(other))) {
LOG_WARN("copy in Base class ObRawExpr failed", K(ret));
} else {
ref_expr_ = other.ref_expr_;
project_index_ = other.project_index_;
}
}
return ret;
}
int ObAliasRefRawExpr::deep_copy(
ObRawExprFactory& expr_factory, const ObAliasRefRawExpr& other, const uint64_t copy_types, bool use_new_allocator)
{
int ret = OB_SUCCESS;
if (OB_LIKELY(this != &other)) {
if (OB_FAIL(ObRawExpr::deep_copy(expr_factory, other, copy_types, use_new_allocator))) {
LOG_WARN("copy in Base class ObRawExpr failed", K(ret));
} else if (OB_FAIL(ObRawExprUtils::copy_expr(
expr_factory, other.ref_expr_, ref_expr_, copy_types, use_new_allocator))) {
LOG_WARN("failed to copy ref expr", K(ret));
} else {
project_index_ = other.project_index_;
}
}
return ret;
}
int ObAliasRefRawExpr::replace_expr(const ObIArray<ObRawExpr*>& other_exprs, const ObIArray<ObRawExpr*>& new_exprs)
{
int ret = OB_ERR_UNEXPECTED;
if (OB_FAIL(ObRawExpr::replace_expr(other_exprs, new_exprs))) {
LOG_WARN("failed to replace expr", K(ret));
} else if (OB_FAIL(ObTransformUtils::replace_expr(other_exprs, new_exprs, ref_expr_))) {
LOG_WARN("failed to replace expr", K(ret));
} else { /*do nothing*/
}
return ret;
}
const ObRawExpr* ObAliasRefRawExpr::get_param_expr(int64_t index) const
{
ObRawExpr* expr = NULL;
if (index < 0 || index > 1) {
LOG_WARN("index out of range", K(index));
} else {
expr = ref_expr_;
}
return expr;
}
ObRawExpr*& ObAliasRefRawExpr::get_param_expr(int64_t index)
{
ObRawExpr** expr = &USELESS_POINTER;
if (index < 0 || index >= 1) {
LOG_WARN("index out of range", K(index));
} else {
expr = &ref_expr_;
}
return *expr;
}
int ObAliasRefRawExpr::do_visit(ObRawExprVisitor& visitor)
{
return visitor.visit(*this);
}
uint64_t ObAliasRefRawExpr::hash_internal(uint64_t seed) const
{
uint64_t hash_code = 0;
if (ref_expr_ != NULL) {
hash_code = ref_expr_->hash(seed);
}
return hash_code;
}
int ObAliasRefRawExpr::get_name_internal(char* buf, const int64_t buf_len, int64_t& pos, ExplainType type) const
{
int ret = OB_SUCCESS;
if (OB_ISNULL(ref_expr_)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("Ref expr is NULL", K(ret));
} else if (OB_FAIL(ref_expr_->get_name(buf, buf_len, pos, type))) {
} else {
} // do nothing
return ret;
}
bool ObAliasRefRawExpr::same_as(const ObRawExpr& expr, ObExprEqualCheckContext* check_context) const
{
UNUSED(check_context);
bool bret = false;
if (OB_ISNULL(ref_expr_)) {
LOG_WARN("ref_expr_ is null");
} else if (expr.get_expr_type() == get_expr_type()) {
const ObAliasRefRawExpr& alias_ref = static_cast<const ObAliasRefRawExpr&>(expr);
if (alias_ref.get_expr_level() == get_expr_level()) {
bret = (alias_ref.get_ref_expr() == get_ref_expr());
}
}
return bret;
}
////////////////////////////////////////////////////////////////
ObExprOperator* ObNonTerminalRawExpr::get_op()
{
if (NULL == op_) {
if (OB_ISNULL(inner_alloc_)) {
LOG_WARN("invalid inner alloc", K(inner_alloc_));
} else if (type_ != T_OP_ROW) {
ObExprOperatorFactory factory(*inner_alloc_);
if (OB_SUCCESS != factory.alloc(type_, op_)) {
LOG_WARN("Can not malloc expression operator", "expr_type", get_type_name(type_), K(lbt()));
} else if (OB_ISNULL(op_)) {
LOG_ERROR("alloc a null expr_op", K(op_));
}
}
}
return op_;
}
void ObNonTerminalRawExpr::free_op()
{
if (NULL != op_) {
op_ = NULL;
}
}
int ObNonTerminalRawExpr::assign(const ObNonTerminalRawExpr& other)
{
int ret = OB_SUCCESS;
if (OB_LIKELY(this != &other)) {
if (OB_FAIL(ObRawExpr::assign(other))) {
LOG_WARN("copy in Base class ObRawExpr failed", K(ret));
} else if (OB_FAIL(this->input_types_.assign(other.input_types_))) {
LOG_WARN("copy input types failed", K(ret));
} else if (other.op_ != NULL) {
ObExprOperator* this_op = get_op();
if (OB_ISNULL(this_op)) {
ret = OB_ALLOCATE_MEMORY_FAILED;
LOG_WARN("allocated memory for expr operator failed", K_(type));
} else if (OB_FAIL(this_op->assign(*other.op_))) {
LOG_WARN("assign this operator failed", K(ret));
}
}
}
return ret;
}
int ObNonTerminalRawExpr::deep_copy(ObRawExprFactory& expr_factory, const ObNonTerminalRawExpr& other,
const uint64_t copy_types, bool use_new_allocator)
{
int ret = OB_SUCCESS;
if (OB_LIKELY(this != &other)) {
if (OB_FAIL(ObRawExpr::deep_copy(expr_factory, other, copy_types, use_new_allocator))) {
LOG_WARN("copy in Base class ObRawExpr failed", K(ret));
} else if (OB_FAIL(this->input_types_.assign(other.input_types_))) {
LOG_WARN("copy input types failed", K(ret));
} else if (other.op_ != NULL) {
ObExprOperator* this_op = get_op();
if (OB_ISNULL(this_op)) {
ret = OB_ALLOCATE_MEMORY_FAILED;
LOG_WARN("allocated memory for expr operator failed", K_(type));
} else if (OB_FAIL(this_op->assign(*other.op_))) {
LOG_WARN("assign this operator failed", K(ret));
}
}
}
return ret;
}
int ObNonTerminalRawExpr::replace_expr(const ObIArray<ObRawExpr*>& other_exprs, const ObIArray<ObRawExpr*>& new_exprs)
{
int ret = OB_SUCCESS;
if (OB_FAIL(ObRawExpr::replace_expr(other_exprs, new_exprs))) {
LOG_WARN("failed to replace expr for base class ObRawExpr", K(ret));
} else { /*do nothing*/
}
return ret;
}
////////////////////////////////////////////////////////////////
ObOpRawExpr::ObOpRawExpr(ObRawExpr* first_expr, ObRawExpr* second_expr, ObItemType type)
: ObExpr(),
ObNonTerminalRawExpr(),
jit::expr::ObOpExpr(),
subquery_key_(T_WITH_NONE),
deduce_type_adding_implicit_cast_(true)
{
set_param_exprs(first_expr, second_expr);
set_expr_type(type);
set_expr_class(EXPR_OPERATOR);
}
int ObOpRawExpr::set_param_expr(ObRawExpr* expr)
{
int ret = OB_SUCCESS;
if (OB_LIKELY(0 == exprs_.count())) {
if (OB_FAIL(exprs_.push_back(expr))) {
LOG_WARN("failed to set param", K(ret));
}
} else {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("can not be set twice", K(ret));
}
return ret;
}
int ObOpRawExpr::set_param_exprs(ObRawExpr* first_expr, ObRawExpr* second_expr, ObRawExpr* third_expr)
{
int ret = OB_SUCCESS;
if (OB_LIKELY(0 == exprs_.count())) {
if (OB_FAIL(exprs_.push_back(first_expr))) {
LOG_WARN("failed to set param", K(ret));
} else if (OB_FAIL(exprs_.push_back(second_expr))) {
LOG_WARN("failed to set param", K(ret));
} else if (OB_FAIL(exprs_.push_back(third_expr))) {
LOG_WARN("failed to set param", K(ret));
} else {
}
} else {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("can not be set twice", K(ret));
}
return ret;
}
int ObOpRawExpr::set_param_exprs(ObRawExpr* first_expr, ObRawExpr* second_expr)
{
int ret = OB_SUCCESS;
ObItemType exchange_type = T_MIN_OP;
switch (get_expr_type()) {
case T_OP_LE:
exchange_type = T_OP_GE;
break;
case T_OP_LT:
exchange_type = T_OP_GT;
break;
case T_OP_GE:
exchange_type = T_OP_LE;
break;
case T_OP_GT:
exchange_type = T_OP_LT;
break;
case T_OP_EQ:
case T_OP_NSEQ:
case T_OP_NE:
exchange_type = get_expr_type();
break;
default:
exchange_type = T_MIN_OP;
break;
}
if (T_MIN_OP != exchange_type && first_expr && first_expr->has_flag(IS_CONST) && second_expr &&
second_expr->has_flag(IS_COLUMN)) {
set_expr_type(exchange_type);
ObRawExpr* tmp_expr = second_expr;
second_expr = first_expr;
first_expr = tmp_expr;
}
if (0 == exprs_.count()) {
if (OB_ISNULL(first_expr) || OB_ISNULL(second_expr)) {
ret = OB_INVALID_ARGUMENT;
LOG_WARN("invalid argument", K(first_expr), K(second_expr), K(ret));
} else if (OB_FAIL(exprs_.push_back(first_expr))) {
LOG_WARN("failed to push back first_expr", K(ret));
} else if (OB_FAIL(exprs_.push_back(second_expr))) {
LOG_WARN("failed to push back gc_expr", K(ret));
} else {
}
} else {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("can not be set twice", K(ret));
}
return ret;
}
void ObOpRawExpr::reset()
{
ObNonTerminalRawExpr::reset();
clear_child();
deduce_type_adding_implicit_cast_ = true;
}
// used for jit expr
// Initialize when jit_exprs_ is obtained, not when initializing exprs_.Reason:
// Resolving ObColumnRefRawExpr in the resolver is just an uninitialized ObColumnRefRawExpr
// Push the object into exprs_, and the object will be replaced later, so exprs_ is not initialized
// together here.
int ObOpRawExpr::get_children(ExprArray& jit_exprs) const
{
int ret = OB_SUCCESS;
for (int i = 0; OB_SUCCESS == ret && i < exprs_.count(); i++) {
if (OB_FAIL(jit_exprs.push_back(static_cast<ObExpr*>(exprs_.at(i))))) {
LOG_WARN("fail to gen ObExpr Array", K(ret));
}
}
return ret;
}
int ObOpRawExpr::assign(const ObOpRawExpr& other)
{
int ret = OB_SUCCESS;
if (OB_LIKELY(this != &other)) {
if (OB_FAIL(ObNonTerminalRawExpr::assign(other))) {
LOG_WARN("copy in Base class ObNonTerminalRawExpr failed", K(ret));
} else if (OB_FAIL(exprs_.assign(other.exprs_))) {
LOG_WARN("failed to assign exprs", K(ret));
} else {
subquery_key_ = other.subquery_key_;
deduce_type_adding_implicit_cast_ = other.deduce_type_adding_implicit_cast_;
}
}
return ret;
}
int ObOpRawExpr::deep_copy(
ObRawExprFactory& expr_factory, const ObOpRawExpr& other, const uint64_t copy_types, bool use_new_allocator)
{
int ret = OB_SUCCESS;
if (OB_LIKELY(this != &other)) {
if (OB_FAIL(ObNonTerminalRawExpr::deep_copy(expr_factory, other, copy_types, use_new_allocator))) {
LOG_WARN("copy in Base class ObNonTerminalRawExpr failed", K(ret));
} else if (OB_FAIL(ObRawExprUtils::copy_exprs(expr_factory, other.exprs_, exprs_, copy_types, use_new_allocator))) {
LOG_WARN("failed to assign exprs", K(ret));
} else {
subquery_key_ = other.subquery_key_;
deduce_type_adding_implicit_cast_ = other.deduce_type_adding_implicit_cast_;
}
}
return ret;
}
int ObOpRawExpr::replace_expr(const ObIArray<ObRawExpr*>& other_exprs, const ObIArray<ObRawExpr*>& new_exprs)
{
int ret = OB_SUCCESS;
if (OB_FAIL(ObNonTerminalRawExpr::replace_expr(other_exprs, new_exprs))) {
LOG_WARN("failed to replace expr", K(ret));
} else if (OB_FAIL(ObTransformUtils::replace_exprs(other_exprs, new_exprs, exprs_))) {
LOG_WARN("failed to replace expr", K(ret));
} else { /*do nothing*/
}
return ret;
}
void ObOpRawExpr::clear_child()
{
exprs_.reset();
}
bool ObOpRawExpr::same_as(const ObRawExpr& expr, ObExprEqualCheckContext* check_context) const
{
bool bool_ret = false;
bool need_cmp = true;
enum { REGULAR_CMP = 1, REVERSE_CMP = 2, BOTH_CMP = 3 } cmp_type;
cmp_type = REGULAR_CMP;
if (T_OP_EQ == get_expr_type() || T_OP_NSEQ == get_expr_type() || T_OP_NE == get_expr_type()) {
if (expr.get_expr_type() == get_expr_type()) {
cmp_type = BOTH_CMP;
} else {
need_cmp = false;
}
} else if (IS_COMMON_COMPARISON_OP(get_expr_type())) {
// GE, GT, LE, LT
if (expr.get_expr_type() == get_expr_type()) {
cmp_type = REGULAR_CMP;
} else if ((T_OP_GE == expr.get_expr_type() && T_OP_LE == get_expr_type()) ||
(T_OP_GT == expr.get_expr_type() && T_OP_LT == get_expr_type()) ||
(T_OP_GE == get_expr_type() && T_OP_LE == expr.get_expr_type()) ||
(T_OP_GT == get_expr_type() && T_OP_LT == expr.get_expr_type())) {
cmp_type = REVERSE_CMP;
} else {
need_cmp = false;
}
} else if (expr.get_expr_type() != get_expr_type()) {
need_cmp = false;
}
if (need_cmp) {
const ObOpRawExpr* m_expr = static_cast<const ObOpRawExpr*>(&expr);
if (BOTH_CMP == cmp_type || REGULAR_CMP == cmp_type) {
if (this->get_param_count() == m_expr->get_param_count()) {
bool_ret = true;
for (int64_t i = 0; bool_ret && i < m_expr->get_param_count(); ++i) {
if (NULL == this->get_param_expr(i) || NULL == m_expr->get_param_expr(i) ||
!(this->get_param_expr(i)->same_as(*m_expr->get_param_expr(i), check_context))) {
bool_ret = false;
}
}
}
}
if (!bool_ret && (BOTH_CMP == cmp_type || REVERSE_CMP == cmp_type)) {
if (NULL == this->get_param_expr(0) || NULL == m_expr->get_param_expr(0) || NULL == this->get_param_expr(1) ||
NULL == m_expr->get_param_expr(1)) {
/* bool_ret = false; */
} else {
bool_ret = this->get_param_expr(0)->same_as(*m_expr->get_param_expr(1), check_context) &&
this->get_param_expr(1)->same_as(*m_expr->get_param_expr(0), check_context);
}
}
}
return bool_ret;
}
int ObOpRawExpr::do_visit(ObRawExprVisitor& visitor)
{
return visitor.visit(*this);
}
int ObOpRawExpr::get_name_internal(char* buf, const int64_t buf_len, int64_t& pos, ExplainType type) const
{
int ret = OB_SUCCESS;
ObString symbol;
switch (get_expr_type()) {
case T_OP_ADD:
case T_OP_AGG_ADD:
symbol = "+";
break;
case T_OP_MINUS:
case T_OP_AGG_MINUS:
symbol = "-";
break;
case T_OP_MUL:
case T_OP_AGG_MUL:
symbol = "*";
break;
case T_OP_DIV:
case T_OP_AGG_DIV:
symbol = "/";
break;
case T_OP_MOD:
symbol = (EXPLAIN_DBLINK_STMT == type) ? "MOD" : "%";
break;
case T_OP_INT_DIV:
symbol = "DIV";
break;
case T_OP_LE:
case T_OP_SQ_LE:
symbol = "<=";
break;
case T_OP_LT:
case T_OP_SQ_LT:
symbol = "<";
break;
case T_OP_EQ:
case T_OP_SQ_EQ:
symbol = "=";
break;
case T_OP_NSEQ:
case T_OP_SQ_NSEQ:
symbol = "<=>";
break;
case T_OP_GE:
case T_OP_SQ_GE:
symbol = ">=";
break;
case T_OP_GT:
case T_OP_SQ_GT:
symbol = ">";
break;
case T_OP_NE:
case T_OP_SQ_NE:
symbol = "!=";
break;
case T_OP_AND:
symbol = "AND";
break;
case T_OP_OR:
symbol = "OR";
break;
case T_OP_IN:
symbol = "IN";
break;
case T_OP_POW:
symbol = "POW";
break;
case T_OP_BIT_XOR:
symbol = "^";
break;
case T_OP_XOR:
symbol = "XOR";
break;
case T_OP_MULTISET:
symbol = "MULTISET";
break;
case T_OP_COLL_PRED:
symbol = "COLL_PRED";
break;
case T_OP_IS:
symbol = "IS";
break;
case T_OP_IS_NOT:
symbol = "IS NOT";
break;
default:
break;
}
if (IS_SUBQUERY_COMPARISON_OP(get_expr_type())) {
if (OB_FAIL(get_subquery_comparison_name(symbol, buf, buf_len, pos, type))) {
LOG_WARN("get subquery comparison name failed", K(ret));
}
} else if ((!symbol.empty() && 2 == get_param_count()) ||
(EXPLAIN_DBLINK_STMT == type && (T_OP_IS == get_expr_type() || T_OP_IS_NOT == get_expr_type()))) {
if (OB_ISNULL(get_param_expr(0))) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("first param expr is NULL", K(ret));
} else if (OB_ISNULL(get_param_expr(1))) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("second param expr is NULL", K(ret));
} else if (EXPLAIN_DBLINK_STMT == type && T_OP_MOD == get_expr_type()) {
if (OB_FAIL(BUF_PRINTF("%.*s", symbol.length(), symbol.ptr()))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (OB_FAIL(BUF_PRINTF("("))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (OB_FAIL(get_param_expr(0)->get_name(buf, buf_len, pos, type))) {
LOG_WARN("fail to get_name", K(ret));
} else if (OB_FAIL(BUF_PRINTF(", "))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (OB_FAIL(get_param_expr(1)->get_name(buf, buf_len, pos, type))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (OB_FAIL(BUF_PRINTF(")"))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
}
} else {
if (EXPLAIN_DBLINK_STMT == type && OB_FAIL(BUF_PRINTF("("))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (OB_FAIL(get_param_expr(0)->get_name(buf, buf_len, pos, type))) {
LOG_WARN("fail to get_name", K(ret));
} else if (OB_FAIL(BUF_PRINTF(" "))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (OB_FAIL(BUF_PRINTF("%.*s", symbol.length(), symbol.ptr()))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (OB_FAIL(BUF_PRINTF(" "))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (OB_FAIL(get_param_expr(1)->get_name(buf, buf_len, pos, type))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (EXPLAIN_DBLINK_STMT == type && OB_FAIL(BUF_PRINTF(")"))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
}
}
} else if (T_OP_ROW == get_expr_type()) {
if (OB_FAIL(BUF_PRINTF("("))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else {
for (int64_t i = 0; OB_SUCC(ret) && i < get_param_count(); ++i) {
if (OB_ISNULL(get_param_expr(i))) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("param expr is NULL", K(i), K(ret));
} else if (OB_FAIL(get_param_expr(i)->get_name(buf, buf_len, pos, type))) {
LOG_WARN("fail to get_name", K(i), K(ret));
} else if (i < get_param_count() - 1) {
if (OB_FAIL(BUF_PRINTF(", "))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
}
} else {
}
}
if (OB_SUCCESS == ret && OB_FAIL(BUF_PRINTF(")"))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
}
}
} else if (T_OP_ORACLE_OUTER_JOIN_SYMBOL == get_expr_type()) {
if (OB_UNLIKELY(1 != get_param_count()) || OB_ISNULL(get_param_expr(0))) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("first param expr is NULL", K(ret), K(get_param_count()));
} else if (OB_FAIL(get_param_expr(0)->get_name(buf, buf_len, pos, type))) {
LOG_WARN("fail to get_name", K(ret));
} else if (OB_FAIL(BUF_PRINTF("(+)"))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
}
} else if (has_flag(IS_INNER_ADDED_EXPR) && (EXPLAIN_EXTENDED != type && EXPLAIN_EXTENDED_NOADDR != type) &&
T_OP_BOOL == get_expr_type()) {
CK(1 == get_param_count());
OZ(get_param_expr(0)->get_name(buf, buf_len, pos, type));
} else if (T_OP_BOOL == get_expr_type()) {
if (OB_UNLIKELY(1 != get_param_count())) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("param_count of bool expr is invalid", K(ret), K(get_param_count()));
} else {
if (OB_FAIL(BUF_PRINTF("BOOL("))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (OB_ISNULL(get_param_expr(0))) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("param expr is NULL", K(ret));
} else if (OB_FAIL(get_param_expr(0)->get_name_internal(buf, buf_len, pos, type))) {
LOG_WARN("fail to get_name_internal", K(ret));
} else if (OB_FAIL(BUF_PRINTF(")"))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
}
}
} else if (T_OP_TO_OUTFILE_ROW == get_expr_type()) {
if (OB_FAIL(BUF_PRINTF("SYS_OP_TO_OUTFILE_ROW("))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else {
for (int64_t i = 0; OB_SUCC(ret) && i < get_param_count(); ++i) {
if (OB_ISNULL(get_param_expr(i))) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("param_expr is NULL", K(i), K(ret));
} else if (OB_FAIL(get_param_expr(i)->get_name(buf, buf_len, pos, type))) {
LOG_WARN("fail to get_name", K(i), K(ret));
} else if (i < get_param_count() - 1) {
if (OB_FAIL(BUF_PRINTF(", "))) {
LOG_WARN("fail to BUF_PRINTF", K(i), K(ret));
}
} else if (OB_FAIL(BUF_PRINTF(")"))) {
LOG_WARN("fail to BUF_PRINTF", K(i), K(ret));
}
}
}
} else {
if (OB_FAIL(BUF_PRINTF("(%s", get_type_name(get_expr_type())))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else {
for (int64_t i = 0; OB_SUCC(ret) && i < get_param_count(); ++i) {
if (OB_ISNULL(get_param_expr(i))) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("param_expr is NULL", K(i), K(ret));
} else if (OB_FAIL(BUF_PRINTF(", "))) {
LOG_WARN("fail to BUF_PRINTF", K(i), K(ret));
} else if (OB_FAIL(get_param_expr(i)->get_name(buf, buf_len, pos, type))) {
LOG_WARN("fail to get_name", K(i), K(ret));
} else {
}
}
if (OB_SUCCESS == ret && OB_FAIL(BUF_PRINTF(")"))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
}
}
}
if (OB_SUCC(ret)) {
if (EXPLAIN_EXTENDED == type) {
if (OB_FAIL(BUF_PRINTF("("))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (OB_FAIL(BUF_PRINTF("%p", this))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (OB_FAIL(BUF_PRINTF(")"))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else {
}
}
}
return ret;
}
int ObOpRawExpr::get_subquery_comparison_name(
const ObString& symbol, char* buf, int64_t buf_len, int64_t& pos, ExplainType type) const
{
int ret = OB_SUCCESS;
const ObRawExpr* param1 = NULL;
const ObRawExpr* param2 = NULL;
ObString subquery_keyname = "";
if (has_flag(IS_WITH_ANY)) {
subquery_keyname = "ANY";
} else if (has_flag(IS_WITH_ALL)) {
subquery_keyname = "ALL";
}
if (OB_UNLIKELY(symbol.empty()) || OB_ISNULL(buf) || OB_UNLIKELY(buf_len <= 0) || OB_UNLIKELY(pos < 0)) {
ret = OB_INVALID_ARGUMENT;
LOG_WARN("invalid argument", K(symbol), K(buf), K(buf_len), K(pos));
} else if (OB_UNLIKELY(get_param_count() != 2)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("expr param count is unexpected", K(get_param_count()));
} else if (OB_ISNULL(param1 = get_param_expr(0)) || OB_ISNULL(param2 = get_param_expr(1))) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("param is null", K(param1), K(param2));
} else if (OB_FAIL(param1->get_name(buf, buf_len, pos, type))) {
LOG_WARN("get param name failed", K(ret));
} else if (OB_FAIL(BUF_PRINTF(
" %.*s %.*s", symbol.length(), symbol.ptr(), subquery_keyname.length(), subquery_keyname.ptr()))) {
LOG_WARN("print symbol name failed", K(ret));
} else if (!subquery_keyname.empty() && OB_FAIL(BUF_PRINTF("("))) {
LOG_WARN("print paren failed", K(ret));
} else if (OB_FAIL(param2->get_name(buf, buf_len, pos, type))) {
LOG_WARN("get param2 name failed", K(ret));
} else if (!subquery_keyname.empty() && OB_FAIL(BUF_PRINTF(")"))) {
LOG_WARN("print paren failed", K(ret));
}
return ret;
}
void ObOpRawExpr::set_expr_type(ObItemType type)
{
type_ = type;
if ((T_OP_IN == type_ || T_OP_NOT_IN == type_) && GCONF.enable_static_engine_for_query()) {
set_deduce_type_adding_implicit_cast(false);
}
}
////////////////////////////////////////////////////////////////
int ObObjAccessRawExpr::assign(const ObObjAccessRawExpr& other)
{
int ret = OB_SUCCESS;
if (OB_LIKELY(this != &other)) {
if (OB_FAIL(ObOpRawExpr::assign(other))) {
LOG_WARN("copy in Base class ObOpRawExpr failed", K(ret));
} else if (OB_FAIL(append(var_indexs_, other.var_indexs_))) {
LOG_WARN("append error", K(ret));
} else {
get_attr_func_ = other.get_attr_func_;
func_name_ = other.func_name_;
for_write_ = other.for_write_;
}
}
return ret;
}
int ObObjAccessRawExpr::deep_copy(
ObRawExprFactory& expr_factory, const ObObjAccessRawExpr& other, const uint64_t copy_types, bool use_new_allocator)
{
int ret = OB_SUCCESS;
if (OB_LIKELY(this != &other)) {
if (OB_FAIL(ObOpRawExpr::deep_copy(expr_factory, other, copy_types, use_new_allocator))) {
LOG_WARN("copy in Base class ObOpRawExpr failed", K(ret));
} else if (use_new_allocator) {
if (OB_ISNULL(inner_alloc_)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("inner allocator is NULL", K(ret));
} else if (OB_FAIL(ob_write_string(*inner_alloc_, other.func_name_, func_name_))) {
LOG_WARN("Failed to write string", K(other.func_name_), K(ret));
} else {
}
} else {
func_name_ = other.func_name_;
}
if (OB_SUCC(ret)) {
if (OB_FAIL(append(var_indexs_, other.var_indexs_))) {
LOG_WARN("append error", K(ret));
} else {
get_attr_func_ = other.get_attr_func_;
for_write_ = other.for_write_;
}
}
}
return ret;
}
bool ObObjAccessRawExpr::same_as(const ObRawExpr& expr, ObExprEqualCheckContext* check_context) const
{
bool bool_ret = false;
if (get_expr_type() != expr.get_expr_type()) {
} else if (ObOpRawExpr::same_as(expr, check_context)) {
const ObObjAccessRawExpr& obj_access_expr = static_cast<const ObObjAccessRawExpr&>(expr);
bool_ret = get_attr_func_ == obj_access_expr.get_attr_func_ &&
0 == func_name_.case_compare(obj_access_expr.func_name_) &&
is_array_equal(var_indexs_, obj_access_expr.var_indexs_) && for_write_ == obj_access_expr.for_write_;
} else { /*do nothing*/
}
return bool_ret;
}
int ObNonTerminalRawExpr::set_input_types(const ObIExprResTypes& input_types)
{
int ret = OB_SUCCESS;
input_types_.reset();
if (OB_ISNULL(inner_alloc_)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("inner allocator is NULL", K(ret));
} else if (OB_FAIL(input_types_.prepare_allocate(input_types.count()))) {
LOG_WARN("fail to prepare allocator", K(ret));
}
for (int64_t i = 0; OB_SUCC(ret) && i < input_types.count(); ++i) {
input_types_.at(i).set_allocator(inner_alloc_);
if (OB_FAIL(input_types_.at(i).assign(input_types.at(i)))) {
LOG_WARN("fail to assign input types", K(input_types), K(input_types_), K(ret));
}
}
return ret;
}
////////////////////////////////////////////////////////////////
int ObCaseOpRawExpr::assign(const ObCaseOpRawExpr& other)
{
int ret = OB_SUCCESS;
if (OB_LIKELY(this != &other)) {
if (OB_FAIL(ObNonTerminalRawExpr::assign(other))) {
LOG_WARN("copy in Base class ObNonTerminalRawExpr failed", K(ret));
} else {
arg_expr_ = other.arg_expr_;
when_exprs_ = other.when_exprs_;
then_exprs_ = other.then_exprs_;
default_expr_ = other.default_expr_;
is_decode_func_ = other.is_decode_func_;
}
}
return ret;
}
int ObCaseOpRawExpr::deep_copy(
ObRawExprFactory& expr_factory, const ObCaseOpRawExpr& other, const uint64_t copy_types, bool use_new_allocator)
{
int ret = OB_SUCCESS;
if (OB_LIKELY(this != &other)) {
if (OB_FAIL(ObNonTerminalRawExpr::deep_copy(expr_factory, other, copy_types, use_new_allocator))) {
LOG_WARN("copy in Base class ObNonTerminalRawExpr failed", K(ret));
} else if (OB_FAIL(ObRawExprUtils::copy_expr(
expr_factory, other.arg_expr_, arg_expr_, copy_types, use_new_allocator))) {
LOG_WARN("failed to copy argument expr", K(ret));
} else if (OB_FAIL(ObRawExprUtils::copy_exprs(
expr_factory, other.when_exprs_, when_exprs_, copy_types, use_new_allocator))) {
LOG_WARN("failed to copy when expr", K(ret));
} else if (OB_FAIL(ObRawExprUtils::copy_exprs(
expr_factory, other.then_exprs_, then_exprs_, copy_types, use_new_allocator))) {
LOG_WARN("failed to copy then exprs", K(ret));
} else if (OB_FAIL(ObRawExprUtils::copy_expr(
expr_factory, other.default_expr_, default_expr_, copy_types, use_new_allocator))) {
LOG_WARN("failed to copy default expr", K(ret));
} else {
is_decode_func_ = other.is_decode_func_;
}
}
return ret;
}
int ObCaseOpRawExpr::replace_expr(const ObIArray<ObRawExpr*>& other_exprs, const ObIArray<ObRawExpr*>& new_exprs)
{
int ret = OB_SUCCESS;
if (OB_FAIL(ObNonTerminalRawExpr::replace_expr(other_exprs, new_exprs))) {
LOG_WARN("failed to replace expr", K(ret));
} else if (OB_FAIL(ObTransformUtils::replace_expr(other_exprs, new_exprs, arg_expr_))) {
LOG_WARN("failed to replace expr", K(ret));
} else if (OB_FAIL(ObTransformUtils::replace_expr(other_exprs, new_exprs, default_expr_))) {
LOG_WARN("failed to replace expr", K(ret));
} else if (OB_FAIL(ObTransformUtils::replace_exprs(other_exprs, new_exprs, when_exprs_))) {
LOG_WARN("failed to replace expr", K(ret));
} else if (OB_FAIL(ObTransformUtils::replace_exprs(other_exprs, new_exprs, then_exprs_))) {
LOG_WARN("failed to replace expr", K(ret));
} else { /*do nothing*/
}
return ret;
}
// jit exprs gen order:
//[arg_expr], when_expr, then_expr, [when_expr, then_expr,]...[default_expr]
int ObCaseOpRawExpr::get_children(ExprArray& jit_exprs) const
{
int ret = OB_SUCCESS;
if (arg_expr_ != NULL) {
if (OB_FAIL(jit_exprs.push_back(static_cast<ObExpr*>(arg_expr_)))) {
LOG_WARN("fail to push arg_expr_", K(ret));
}
}
if (OB_SUCC(ret)) {
if (when_exprs_.count() != then_exprs_.count()) {
LOG_WARN("when_exprs count is not equal to then_exprs count", K(when_exprs_.count()), K(then_exprs_.count()));
}
for (int64_t i = 0; OB_SUCCESS == ret && i < when_exprs_.count(); i++) {
if (OB_FAIL(jit_exprs.push_back(static_cast<ObExpr*>(when_exprs_.at(i))))) {
LOG_WARN("fail to push when_expr_", K(ret));
} else if (OB_FAIL(jit_exprs.push_back(static_cast<ObExpr*>(then_exprs_.at(i))))) {
LOG_WARN("fail to push then_expr_", K(ret));
}
}
}
if (OB_SUCC(ret) && NULL != default_expr_) {
if (OB_FAIL(jit_exprs.push_back(static_cast<ObExpr*>(default_expr_)))) {
LOG_WARN("fail to push arg_expr_", K(ret));
}
}
return ret;
}
void ObCaseOpRawExpr::clear_child()
{
arg_expr_ = NULL;
when_exprs_.reset();
then_exprs_.reset();
default_expr_ = NULL;
}
void ObCaseOpRawExpr::reset()
{
ObNonTerminalRawExpr::reset();
clear_child();
}
const ObRawExpr* ObCaseOpRawExpr::get_param_expr(int64_t index) const
{
ObRawExpr* expr = const_cast<ObCaseOpRawExpr*>(this)->get_param_expr(index);
return &expr == &USELESS_POINTER ? NULL : expr;
}
int ObCaseOpRawExpr::replace_param_expr(int64_t index, ObRawExpr* new_expr)
{
int ret = common::OB_SUCCESS;
ObRawExpr*& old_expr = this->get_param_expr(index);
if (OB_ISNULL(old_expr)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN(
"replace_param_expr for case expr failed", K(ret), K(index), K(get_when_expr_size()), K(get_then_expr_size()));
} else {
old_expr = new_expr;
}
return ret;
}
// return child expr in visitor order:
// arg expr, when expr, then expr, when expr, then expr ..., default expr
ObRawExpr*& ObCaseOpRawExpr::get_param_expr(int64_t index)
{
int ret = OB_SUCCESS;
ObRawExpr** expr = &USELESS_POINTER;
if (index < 0 || index >= get_param_count()) {
LOG_WARN("invalid index", K(index), K(get_param_count()));
} else if (when_exprs_.count() != then_exprs_.count()) {
LOG_WARN("when and then expr count mismatch", K(ret), K(when_exprs_.count()), K(then_exprs_.count()));
} else {
if (NULL != arg_expr_ && 0 == index) {
expr = &arg_expr_;
} else {
index -= (NULL != arg_expr_ ? 1 : 0);
if (index >= when_exprs_.count() * 2) {
if (NULL != default_expr_) {
expr = &default_expr_;
}
} else {
expr = &(index % 2 == 0 ? when_exprs_ : then_exprs_).at(index / 2);
}
}
}
return *expr;
}
bool ObCaseOpRawExpr::same_as(const ObRawExpr& expr, ObExprEqualCheckContext* check_context) const
{
bool bool_ret = false;
if (get_expr_type() != expr.get_expr_type()) {
} else {
const ObCaseOpRawExpr* c_expr = static_cast<const ObCaseOpRawExpr*>(&expr);
if (((NULL == arg_expr_ && NULL == c_expr->arg_expr_) ||
(NULL != arg_expr_ && c_expr->arg_expr_ && arg_expr_->same_as(*c_expr->arg_expr_, check_context))) &&
((NULL == default_expr_ && NULL == c_expr->default_expr_) ||
(NULL != default_expr_ && c_expr->default_expr_ &&
default_expr_->same_as(*c_expr->default_expr_, check_context))) &&
this->get_when_expr_size() == c_expr->get_when_expr_size()) {
bool_ret = true;
for (int64_t i = 0; bool_ret && i < c_expr->get_when_expr_size(); ++i) {
if (OB_ISNULL(this->get_when_param_expr(i)) || OB_ISNULL(c_expr->get_when_param_expr(i)) ||
OB_ISNULL(this->get_then_param_expr(i)) || OB_ISNULL(c_expr->get_then_param_expr(i)) ||
!this->get_when_param_expr(i)->same_as(*c_expr->get_when_param_expr(i), check_context) ||
!this->get_then_param_expr(i)->same_as(*c_expr->get_then_param_expr(i), check_context)) {
bool_ret = false;
}
}
}
}
return bool_ret;
}
int ObCaseOpRawExpr::do_visit(ObRawExprVisitor& visitor)
{
return visitor.visit(*this);
}
int ObCaseOpRawExpr::get_name_internal(char* buf, const int64_t buf_len, int64_t& pos, ExplainType type) const
{
int ret = OB_SUCCESS;
if (OB_FAIL(BUF_PRINTF("CASE"))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (NULL != arg_expr_) {
if (OB_FAIL(BUF_PRINTF(" "))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (OB_FAIL(arg_expr_->get_name(buf, buf_len, pos, type))) {
LOG_WARN("fail to get_name", K(ret));
} else {
}
} else {
}
if (OB_SUCC(ret)) {
for (int64_t i = 0; OB_SUCC(ret) && i < get_when_expr_size(); ++i) {
if (OB_ISNULL(get_when_param_expr(i))) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("when_param_expr is NULL", K(i), K(ret));
} else if (OB_ISNULL(get_then_param_expr(i))) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("then_param_expr is NULL", K(i), K(ret));
} else if (OB_FAIL(BUF_PRINTF(" "))) {
LOG_WARN("fail to BUF_PRINTF", K(i), K(ret));
} else if (OB_FAIL(BUF_PRINTF("WHEN"))) {
LOG_WARN("fail to BUF_PRINTF", K(i), K(ret));
} else if (OB_FAIL(BUF_PRINTF(" "))) {
LOG_WARN("fail to BUF_PRINTF", K(i), K(ret));
} else if (OB_FAIL(get_when_param_expr(i)->get_name(buf, buf_len, pos, type))) {
LOG_WARN("fail to get_name", K(i), K(ret));
} else if (OB_FAIL(BUF_PRINTF(" "))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (OB_FAIL(BUF_PRINTF("THEN"))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (OB_FAIL(BUF_PRINTF(" "))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (OB_FAIL(get_then_param_expr(i)->get_name(buf, buf_len, pos, type))) {
LOG_WARN("fail to get_name", K(i), K(ret));
} else {
}
}
if (OB_SUCC(ret)) {
if (OB_FAIL(BUF_PRINTF(" "))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (OB_FAIL(BUF_PRINTF("ELSE"))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else {
if (NULL != default_expr_) {
if (OB_FAIL(BUF_PRINTF(" "))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (OB_FAIL(default_expr_->get_name(buf, buf_len, pos, type))) {
LOG_WARN("fail to get_name", K(ret));
} else {
}
}
}
}
}
if (OB_SUCC(ret)) {
if (OB_FAIL(BUF_PRINTF(" "))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (OB_FAIL(BUF_PRINTF("END"))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else {
}
}
if (OB_SUCCESS == ret && EXPLAIN_EXTENDED == type) {
if (OB_FAIL(BUF_PRINTF("("))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (OB_FAIL(BUF_PRINTF("%p", this))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (OB_FAIL(BUF_PRINTF(")"))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else {
}
}
return ret;
}
////////////////////////////////////////////////////////////////
int ObAggFunRawExpr::assign(const ObAggFunRawExpr& other)
{
int ret = OB_SUCCESS;
if (OB_LIKELY(this != &other)) {
if (OB_FAIL(ObRawExpr::assign(other))) {
LOG_WARN("copy in Base class ObRawExpr failed", K(ret));
} else {
real_param_exprs_ = other.real_param_exprs_;
push_down_sum_expr_ = other.push_down_sum_expr_;
push_down_count_expr_ = other.push_down_count_expr_;
push_down_synopsis_expr_ = other.push_down_synopsis_expr_;
distinct_ = other.distinct_;
order_items_ = other.order_items_;
separator_param_expr_ = other.separator_param_expr_;
linear_inter_expr_ = other.linear_inter_expr_;
is_nested_aggr_ = other.is_nested_aggr_;
udf_meta_.assign(other.udf_meta_);
}
}
return ret;
}
int ObAggFunRawExpr::deep_copy(
ObRawExprFactory& expr_factory, const ObAggFunRawExpr& other, const uint64_t copy_types, bool use_new_allocator)
{
int ret = OB_SUCCESS;
ObRawExpr* temp_expr = NULL;
if (OB_LIKELY(this != &other)) {
if (OB_FAIL(ObRawExpr::deep_copy(expr_factory, other, copy_types, use_new_allocator))) {
LOG_WARN("copy in Base class ObRawExpr failed", K(ret));
} else if (OB_FAIL(ObRawExprUtils::copy_expr(
expr_factory, other.push_down_sum_expr_, push_down_sum_expr_, copy_types, use_new_allocator))) {
LOG_WARN("failed to copy push down sum expr", K(ret));
} else if (OB_FAIL(ObRawExprUtils::copy_expr(
expr_factory, other.push_down_count_expr_, push_down_count_expr_, copy_types, use_new_allocator))) {
LOG_WARN("failed to copy push down count expr", K(ret));
} else if (OB_FAIL(ObRawExprUtils::copy_expr(expr_factory,
other.push_down_synopsis_expr_,
push_down_synopsis_expr_,
copy_types,
use_new_allocator))) {
LOG_WARN("failed to copy push down sysnopsis expr", K(ret));
} else if (OB_FAIL(ObRawExprUtils::copy_expr(
expr_factory, other.separator_param_expr_, temp_expr, copy_types, use_new_allocator))) {
LOG_WARN("failed to copy separator param expr", K(ret));
} else if (OB_FAIL(ObRawExprUtils::copy_exprs(
expr_factory, other.real_param_exprs_, real_param_exprs_, copy_types, use_new_allocator))) {
LOG_WARN("failed to copy real param exprs", K(ret));
} else if (OB_FAIL(ObTransformUtils::deep_copy_order_items(
expr_factory, other.order_items_, order_items_, copy_types, use_new_allocator))) {
LOG_WARN("failed to copy order item", K(ret));
} else {
distinct_ = other.distinct_;
udf_meta_ = other.udf_meta_;
is_nested_aggr_ = other.is_nested_aggr_;
linear_inter_expr_ = other.linear_inter_expr_;
if (NULL != temp_expr) {
separator_param_expr_ = temp_expr;
}
if (OB_FAIL(common::ob_write_string(expr_factory.get_allocator(), other.udf_meta_.name_, udf_meta_.name_))) {
LOG_WARN("failed to write string", K(ret));
} else if (OB_FAIL(common::ob_write_string(expr_factory.get_allocator(), other.udf_meta_.dl_, udf_meta_.dl_))) {
LOG_WARN("failed to write string", K(ret));
}
}
}
return ret;
}
int ObAggFunRawExpr::replace_expr(const ObIArray<ObRawExpr*>& other_exprs, const ObIArray<ObRawExpr*>& new_exprs)
{
int ret = OB_SUCCESS;
if (OB_FAIL(ObRawExpr::replace_expr(other_exprs, new_exprs))) {
LOG_WARN("failed to replace expr", K(ret));
} else if (OB_FAIL(ObTransformUtils::replace_expr(other_exprs, new_exprs, push_down_count_expr_))) {
LOG_WARN("failed to replace expr", K(ret));
} else if (OB_FAIL(ObTransformUtils::replace_expr(other_exprs, new_exprs, push_down_sum_expr_))) {
LOG_WARN("failed to replace expr", K(ret));
} else if (OB_FAIL(ObTransformUtils::replace_expr(other_exprs, new_exprs, push_down_synopsis_expr_))) {
LOG_WARN("failed to replace expr", K(ret));
} else if (OB_FAIL(ObTransformUtils::replace_exprs(other_exprs, new_exprs, real_param_exprs_))) {
LOG_WARN("failed to replace expr", K(ret));
} else if (OB_FAIL(ObTransformUtils::replace_expr_for_order_item(other_exprs, new_exprs, order_items_))) {
LOG_WARN("failed to replace expr", K(ret));
} else { /*do nothing*/
}
return ret;
}
void ObAggFunRawExpr::clear_child()
{
real_param_exprs_.reset();
}
void ObAggFunRawExpr::reset()
{
ObRawExpr::reset();
distinct_ = false;
clear_child();
order_items_.reset();
separator_param_expr_ = NULL;
linear_inter_expr_ = NULL;
is_nested_aggr_ = false;
}
bool ObAggFunRawExpr::same_as(const ObRawExpr& expr, ObExprEqualCheckContext* check_context) const
{
bool bool_ret = false;
if (get_expr_type() != expr.get_expr_type()) {
} else {
const ObAggFunRawExpr* a_expr = static_cast<const ObAggFunRawExpr*>(&expr);
if (is_nested_aggr_ != a_expr->is_nested_aggr()) {
// do nothing.
} else if (distinct_ == a_expr->is_param_distinct()) {
if ((NULL == separator_param_expr_ && NULL == a_expr->separator_param_expr_) ||
(NULL != separator_param_expr_ && NULL != a_expr->separator_param_expr_ &&
separator_param_expr_->same_as(*(a_expr->separator_param_expr_), check_context))) {
if (real_param_exprs_.count() == a_expr->real_param_exprs_.count()) {
bool_ret = true;
for (int64_t i = 0; bool_ret && i < real_param_exprs_.count(); ++i) {
if (OB_ISNULL(real_param_exprs_.at(i)) || OB_ISNULL(a_expr->real_param_exprs_.at(i)) ||
!real_param_exprs_.at(i)->same_as(*(a_expr->real_param_exprs_.at(i)), check_context)) {
bool_ret = false;
}
}
if (bool_ret) {
if (order_items_.count() == a_expr->order_items_.count()) {
for (int64_t i = 0; bool_ret && i < order_items_.count(); ++i) {
if (OB_ISNULL(order_items_.at(i).expr_) || OB_ISNULL(a_expr->order_items_.at(i).expr_) ||
!order_items_.at(i).expr_->same_as(*(a_expr->order_items_.at(i).expr_), check_context)) {
bool_ret = false;
}
}
} else {
bool_ret = false;
}
}
if (bool_ret) {
if ((NULL == linear_inter_expr_ && NULL == a_expr->linear_inter_expr_) ||
(NULL != linear_inter_expr_ && NULL != a_expr->linear_inter_expr_ &&
linear_inter_expr_->same_as(*(a_expr->linear_inter_expr_), check_context))) {
bool_ret = true;
} else {
bool_ret = false;
}
}
}
}
}
}
return bool_ret;
}
const ObRawExpr* ObAggFunRawExpr::get_param_expr(int64_t index) const
{
const ObRawExpr* ptr_ret = NULL;
if (0 <= index && index < real_param_exprs_.count()) {
ptr_ret = real_param_exprs_.at(index);
} else if ((0 <= index - real_param_exprs_.count()) && (index - real_param_exprs_.count() < order_items_.count())) {
ptr_ret = order_items_.at(index - real_param_exprs_.count()).expr_;
} else {
}
return ptr_ret;
}
ObRawExpr*& ObAggFunRawExpr::get_param_expr(int64_t index)
{
if (0 <= index && index < real_param_exprs_.count()) {
return real_param_exprs_.at(index);
} else if ((0 <= index - real_param_exprs_.count()) && (index - real_param_exprs_.count() < order_items_.count())) {
return order_items_.at(index - real_param_exprs_.count()).expr_;
} else {
return USELESS_POINTER;
}
}
int ObAggFunRawExpr::do_visit(ObRawExprVisitor& visitor)
{
return visitor.visit(*this);
}
int ObAggFunRawExpr::get_name_internal(char* buf, const int64_t buf_len, int64_t& pos, ExplainType type) const
{
int ret = OB_SUCCESS;
if (T_FUN_AGG_UDF == get_expr_type()) {
if (OB_FAIL(BUF_PRINTF("%.*s(", udf_meta_.name_.length(), udf_meta_.name_.ptr()))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
}
} else if (EXPLAIN_DBLINK_STMT == type) {
if (OB_FAIL(BUF_PRINTF("%s(", get_name_dblink(get_expr_type())))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
}
} else {
if (OB_FAIL(BUF_PRINTF("%s(", get_type_name(get_expr_type())))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
}
}
if (OB_SUCC(ret)) {
if (distinct_) {
if (OB_FAIL(BUF_PRINTF("distinct "))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
}
}
int64_t i = 0;
if (T_FUN_MEDIAN == get_expr_type() || T_FUN_GROUP_PERCENTILE_CONT == get_expr_type()) {
if (1 > get_real_param_count()) {
ret = OB_ERR_PARAM_SIZE;
LOG_WARN("invalid number of arguments", K(ret), K(get_expr_type()));
} else if (OB_FAIL(get_real_param_exprs().at(0)->get_name(buf, buf_len, pos, type))) {
LOG_WARN("fail to get_name", K(i), K(ret));
} else {
}
} else {
for (; OB_SUCC(ret) && i < get_real_param_count() - 1; ++i) {
if (OB_ISNULL(get_real_param_exprs().at(i))) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("param expr is NULL", K(i), K(ret));
} else if (OB_FAIL(get_real_param_exprs().at(i)->get_name(buf, buf_len, pos, type))) {
LOG_WARN("fail to get_name", K(i), K(ret));
} else if (OB_FAIL(BUF_PRINTF(", "))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else {
}
}
if (OB_SUCC(ret)) {
if (0 == get_real_param_count()) {
if (OB_FAIL(BUF_PRINTF("*"))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
}
} else if (OB_ISNULL(get_real_param_exprs().at(i))) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("param expr is NULL", K(i), K(ret));
} else if (OB_FAIL(get_real_param_exprs().at(i)->get_name(buf, buf_len, pos, type))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else {
}
}
}
if (OB_SUCCESS == ret && OB_FAIL(BUF_PRINTF(")"))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
}
if (OB_SUCCESS == ret &&
(T_FUN_GROUP_CONCAT == get_expr_type() || T_FUN_GROUP_RANK == get_expr_type() ||
T_FUN_GROUP_DENSE_RANK == get_expr_type() || T_FUN_GROUP_PERCENT_RANK == get_expr_type() ||
T_FUN_GROUP_CUME_DIST == get_expr_type() || T_FUN_GROUP_PERCENTILE_CONT == get_expr_type() ||
T_FUN_GROUP_PERCENTILE_DISC == get_expr_type() || T_FUN_KEEP_MAX == get_expr_type() ||
T_FUN_KEEP_MIN == get_expr_type() || T_FUN_KEEP_SUM == get_expr_type() ||
T_FUN_KEEP_COUNT == get_expr_type() || T_FUN_KEEP_WM_CONCAT == get_expr_type())) {
if (order_items_.count() > 0) {
if (OB_FAIL(BUF_PRINTF(" order_items("))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
}
for (int64_t i = 0; OB_SUCC(ret) && i < order_items_.count(); ++i) {
if (i > 0) {
if (OB_FAIL(BUF_PRINTF(", "))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
}
}
if (OB_FAIL(ret)) {
// do nothing
} else if (OB_ISNULL(order_items_.at(i).expr_)) {
LOG_WARN("expr is NULL", K(i), K(ret));
} else if (OB_FAIL(order_items_.at(i).expr_->get_name(buf, buf_len, pos, type))) {
LOG_WARN("fail to get_name", K(i), K(ret));
} else {
}
}
if (OB_SUCCESS == ret && OB_FAIL(BUF_PRINTF(")"))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
}
}
if (OB_SUCCESS == ret && NULL != separator_param_expr_) {
if (OB_FAIL(BUF_PRINTF(" separator_param_expr("))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (OB_FAIL(separator_param_expr_->get_name(buf, buf_len, pos, type))) {
LOG_WARN("fail to get_name", K(ret));
} else if (OB_FAIL(BUF_PRINTF(")"))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else {
}
}
}
if (OB_SUCCESS == ret && EXPLAIN_EXTENDED == type) {
if (OB_FAIL(BUF_PRINTF("("))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (OB_FAIL(BUF_PRINTF("%p", this))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (OB_FAIL(BUF_PRINTF(")"))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else {
}
}
}
return ret;
}
const char* ObAggFunRawExpr::get_name_dblink(ObItemType expr_type) const
{
const char* name = NULL;
switch (expr_type) {
case T_FUN_MAX:
name = "max";
break;
case T_FUN_MIN:
name = "min";
break;
case T_FUN_SUM:
name = "sum";
break;
case T_FUN_COUNT:
name = "count";
break;
case T_FUN_AVG:
name = "avg";
break;
default:
name = "UNKNOWN";
break;
}
return name;
}
int ObAggFunRawExpr::set_udf_meta(const share::schema::ObUDF& udf)
{
int ret = OB_SUCCESS;
udf_meta_.tenant_id_ = udf.get_tenant_id();
udf_meta_.ret_ = udf.get_ret();
udf_meta_.type_ = udf.get_type();
if (OB_ISNULL(inner_alloc_)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("inner allocator or expr factory is NULL", K(inner_alloc_), K(ret));
} else if (OB_FAIL(ob_write_string(*inner_alloc_, udf.get_name_str(), udf_meta_.name_))) {
LOG_WARN("fail to write string", K(udf.get_name_str()), K(ret));
} else if (OB_FAIL(ob_write_string(*inner_alloc_, udf.get_dl_str(), udf_meta_.dl_))) {
LOG_WARN("fail to write string", K(udf.get_name_str()), K(ret));
} else { /*do nothing*/
}
return ret;
}
////////////////////////////////////////////////////////////////
int ObSysFunRawExpr::assign(const ObSysFunRawExpr& other)
{
int ret = OB_SUCCESS;
if (OB_LIKELY(this != &other)) {
if (OB_FAIL(ObOpRawExpr::assign(other))) {
LOG_WARN("copy in Base class ObOpRawExpr failed", K(ret));
} else {
func_name_ = other.func_name_;
operator_id_ = other.operator_id_;
}
}
return ret;
}
int ObSysFunRawExpr::deep_copy(
ObRawExprFactory& expr_factory, const ObSysFunRawExpr& other, const uint64_t copy_types, bool use_new_allocator)
{
int ret = OB_SUCCESS;
if (OB_LIKELY(this != &other)) {
if (OB_FAIL(ObOpRawExpr::deep_copy(expr_factory, other, copy_types, use_new_allocator))) {
LOG_WARN("copy in Base class ObOpRawExpr failed", K(ret));
} else if (use_new_allocator) {
if (OB_ISNULL(inner_alloc_)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("inner allocator or expr factory is NULL", K(inner_alloc_), K(ret));
} else if (OB_FAIL(ob_write_string(*inner_alloc_, other.func_name_, func_name_))) {
LOG_WARN("fail to write string", K(other.func_name_), K(ret));
}
} else {
func_name_ = other.func_name_;
operator_id_ = other.operator_id_;
}
}
return ret;
}
void ObSysFunRawExpr::clear_child()
{
exprs_.reset();
}
void ObSysFunRawExpr::reset()
{
ObNonTerminalRawExpr::reset();
func_name_.reset();
clear_child();
}
bool ObSysFunRawExpr::same_as(const ObRawExpr& expr, ObExprEqualCheckContext* check_context) const
{
bool bool_ret = false;
const ObSysFunRawExpr* s_expr = static_cast<const ObSysFunRawExpr*>(&expr);
if (get_expr_type() != expr.get_expr_type()) {
} else if (T_FUN_SYS_RAND == get_expr_type() || T_FUN_SYS_GUID == get_expr_type()) {
} else {
if (ObCharset::case_insensitive_equal(func_name_, s_expr->get_func_name()) &&
this->get_param_count() == s_expr->get_param_count()) {
bool_ret = true;
for (int64_t i = 0; bool_ret && i < s_expr->get_param_count(); i++) {
if (OB_ISNULL(get_param_expr(i)) || OB_ISNULL(s_expr->get_param_expr(i)) ||
!this->get_param_expr(i)->same_as(*s_expr->get_param_expr(i), check_context)) {
bool_ret = false;
}
}
}
}
return bool_ret;
}
ObExprOperator* ObSysFunRawExpr::get_op()
{
ObExprOperator* op = NULL;
if (get_expr_type() == T_FUN_SYS) {
free_op();
ObExprOperatorType type;
if (T_INVALID != (type = ObExprOperatorFactory::get_type_by_name(func_name_))) {
set_expr_type(type);
} else {
LOG_ERROR("invalid func name", K_(func_name));
}
}
if (OB_UNLIKELY(NULL == (op = ObOpRawExpr::get_op()))) {
LOG_ERROR("make function failed", K_(func_name));
}
return op;
}
int ObSysFunRawExpr::check_param_num()
{
int ret = OB_SUCCESS;
ObExprOperator* op = NULL;
ObExprOperatorType type;
if (OB_UNLIKELY(T_INVALID == (type = ObExprOperatorFactory::get_type_by_name(func_name_)))) {
ret = OB_ERR_FUNCTION_UNKNOWN;
LOG_WARN("system function not exists, maybe a user define function", K(func_name_), K(ret));
} else if (OB_UNLIKELY(NULL == (op = get_op()))) {
ret = OB_ALLOCATE_MEMORY_FAILED;
LOG_ERROR("fail to make function", K(func_name_), K(ret));
} else {
int32_t param_num = op->get_param_num();
switch (param_num) {
case ObExprOperator::MORE_THAN_ZERO: {
if (get_param_count() <= 0) {
ret = OB_ERR_PARAM_SIZE;
LOG_WARN("Param num of function can not be 0", K(func_name_), K(ret));
}
break;
}
case ObExprOperator::MORE_THAN_ONE: {
if (get_param_count() <= 1) {
ret = OB_ERR_PARAM_SIZE;
LOG_WARN("Param num of function should be more than 1", K(func_name_), K(ret));
}
break;
}
case ObExprOperator::MORE_THAN_TWO: {
if (get_param_count() <= 2) {
ret = OB_ERR_PARAM_SIZE;
LOG_WARN("Param num of function should be more than 2", K(func_name_), K(ret));
}
break;
}
case ObExprOperator::ZERO_OR_ONE: {
if (0 != get_param_count() && 1 != get_param_count()) {
ret = OB_ERR_PARAM_SIZE;
LOG_WARN("Param num of function should be 0 or 1", K(func_name_), K(ret));
}
break;
}
case ObExprOperator::ONE_OR_TWO: {
if (get_param_count() != 1 && get_param_count() != 2) {
ret = OB_ERR_PARAM_SIZE;
LOG_WARN("Param num of function should be 1 or 2", K(func_name_), K(ret));
}
break;
}
case ObExprOperator::TWO_OR_THREE: {
if (get_param_count() != 2 && get_param_count() != 3) {
if (share::is_oracle_mode() && (T_FUN_SYS_RPAD == type || T_FUN_SYS_LPAD == type)) {
if (get_param_count() > 3) {
ret = OB_ERR_TOO_MANY_ARGS_FOR_FUN;
LOG_WARN("param count larger than 3", K(ret), K(func_name_), K(get_param_count()));
} else {
ret = OB_ERR_NOT_ENOUGH_ARGS_FOR_FUN;
LOG_WARN("param count less than 2", K(ret), K(func_name_), K(get_param_count()));
}
} else {
ret = OB_ERR_PARAM_SIZE;
LOG_WARN("Param num of function should be 2 or 3", K(func_name_), K(ret), K(get_param_count()));
}
} else if (!share::is_oracle_mode() && T_FUN_SYS_REPLACE == type && get_param_count() != 3) {
ret = OB_ERR_PARAM_SIZE;
LOG_WARN("Param num of function should be 3", K(func_name_), K(ret), K(share::is_oracle_mode()));
}
break;
}
case ObExprOperator::OCCUR_AS_PAIR: {
if (get_param_count() % 2 != 0) {
ret = OB_ERR_PARAM_SIZE;
LOG_WARN("Param num of function should be even", K(func_name_), K(ret));
}
break;
}
case ObExprOperator::PARAM_NUM_UNKNOWN: {
// nothing
break;
}
default: {
if (get_param_count() != param_num) {
ret = OB_ERR_PARAM_SIZE;
LOG_WARN("invalid Param num of function", K(func_name_), K(param_num), K(get_param_count()), K(ret));
}
break;
}
}
if (OB_UNLIKELY(OB_ERR_PARAM_SIZE == ret)) {
LOG_USER_ERROR(OB_ERR_PARAM_SIZE, func_name_.length(), func_name_.ptr());
}
}
return ret;
}
int ObSysFunRawExpr::do_visit(ObRawExprVisitor& visitor)
{
return visitor.visit(*this);
}
int ObSysFunRawExpr::get_name_internal(char* buf, const int64_t buf_len, int64_t& pos, ExplainType type) const
{
int ret = OB_SUCCESS;
if (has_flag(IS_INNER_ADDED_EXPR) && (EXPLAIN_EXTENDED != type && EXPLAIN_EXTENDED_NOADDR != type) &&
T_FUN_SYS_REMOVE_CONST == get_expr_type()) {
CK(1 == get_param_count());
OZ(get_param_expr(0)->get_name(buf, buf_len, pos, type));
} else if (OB_FAIL(BUF_PRINTF("%.*s(", get_func_name().length(), get_func_name().ptr()))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else {
if (T_FUN_COLUMN_CONV == get_expr_type()) {
if (OB_FAIL(get_column_conv_name(buf, buf_len, pos, type))) {
LOG_WARN("fail to get_column_conv_name", K(ret));
}
} else if (T_FUN_SYS_PART_ID == get_expr_type()) {
// ignore the print of T_FUN_SYS_PART_ID expr
} else {
int64_t i = 0;
if (get_param_count() > 1) {
int64_t real_param_count = get_param_count();
if (T_FUN_SYS_FROM_UNIX_TIME == get_expr_type() && 3 == real_param_count) {
real_param_count = 2;
} else if ((T_FUN_SYS_LEAST_INNER == get_expr_type() || T_FUN_SYS_GREATEST_INNER == get_expr_type())) {
real_param_count /= 3;
} else if (T_FUN_SYS_NULLIF == get_expr_type() && 6 == real_param_count) {
real_param_count = 2;
}
for (; OB_SUCC(ret) && i < real_param_count - 1; ++i) {
if (OB_ISNULL(get_param_expr(i))) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("param_expr is NULL", K(i), K(ret));
} else if (OB_FAIL(get_param_expr(i)->get_name(buf, buf_len, pos, type))) {
LOG_WARN("fail to get_name", K(i), K(ret));
} else if (OB_FAIL(BUF_PRINTF(", "))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else {
}
}
}
if (OB_SUCC(ret)) {
if (T_FUN_SYS_CAST != get_expr_type()) {
if (get_param_count() >= 1) {
if (OB_ISNULL(get_param_expr(i))) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("poram expr is NULL", K(i), K(ret));
} else if (OB_FAIL(get_param_expr(i)->get_name(buf, buf_len, pos, type))) {
LOG_WARN("fail to get_name", K(ret));
} else {
}
}
} else {
if (OB_FAIL(get_cast_type_name(buf, buf_len, pos))) {
LOG_WARN("fail to get_cast_type_name", K(ret));
}
}
}
}
if (OB_SUCC(ret)) {
if (OB_FAIL(BUF_PRINTF(")"))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (EXPLAIN_EXTENDED == type) {
if (OB_FAIL(BUF_PRINTF("("))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (OB_FAIL(BUF_PRINTF("%p", this))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (OB_FAIL(BUF_PRINTF(")"))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else {
}
} else {
}
}
}
return ret;
}
int ObSysFunRawExpr::get_cast_type_name(char* buf, int64_t buf_len, int64_t& pos) const
{
int ret = OB_SUCCESS;
if (OB_ISNULL(get_param_expr(1))) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("second param expr is NULL", K(ret));
} else if (!get_param_expr(1)->is_const_expr()) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("second param expr is not const expr", K(ret));
} else {
const ObConstRawExpr* const_expr = static_cast<const ObConstRawExpr*>(get_param_expr(1));
ObObj value = const_expr->get_value();
if (!value.is_int()) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("value of second param expr is not int", K(value), K(ret));
} else {
ParseNode node;
node.value_ = value.get_int();
ObObjType dest_type = static_cast<ObObjType>(node.int16_values_[0]);
ObCollationType coll_type = static_cast<ObCollationType>(node.int16_values_[1]);
int32_t length = 0;
int16_t precision = 0;
int16_t scale = 0;
const char* type_str = ob_obj_type_str(dest_type);
if (ob_is_string_tc(dest_type)) {
length = node.int32_values_[1] < 0 ? static_cast<int32_t>(OB_MAX_VARCHAR_LENGTH) : node.int32_values_[1];
if (share::is_oracle_mode()) {
ObLengthSemantics length_semantics = const_expr->get_accuracy().get_length_semantics();
if (OB_FAIL(BUF_PRINTF("%s(%d %s)", type_str, length, get_length_semantics_str(length_semantics)))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
}
} else {
if (OB_FAIL(BUF_PRINTF("%s(%d)", type_str, length))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
}
}
} else if (ob_is_text_tc(dest_type)) {
// TODO texttc should use default length
length = ObAccuracy::DDL_DEFAULT_ACCURACY[dest_type].get_length();
if (OB_FAIL(BUF_PRINTF("%s(%d)", type_str, length))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
}
} else if (ob_is_lob_tc(dest_type)) {
const char* dest_type_str = CS_TYPE_BINARY == coll_type ? "blob" : "clob";
if (OB_FAIL(BUF_PRINTF(dest_type_str, type_str, length))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
}
} else {
precision = node.int16_values_[2];
scale = node.int16_values_[3];
if (OB_FAIL(BUF_PRINTF("%s(%d, %d)", type_str, precision, scale))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
}
}
}
}
return ret;
}
int ObSysFunRawExpr::get_column_conv_name(char* buf, int64_t buf_len, int64_t& pos, ExplainType explain_type) const
{
int ret = OB_SUCCESS;
if (OB_ISNULL(buf) || T_FUN_COLUMN_CONV != get_expr_type()) {
ret = OB_INVALID_ARGUMENT;
LOG_WARN("invalid argument", K(buf), K(get_expr_type()), K(ret));
} else if (OB_ISNULL(get_param_expr(0)) || OB_ISNULL(get_param_expr(1)) || OB_ISNULL(get_param_expr(2)) ||
OB_ISNULL(get_param_expr(3)) || OB_ISNULL(get_param_expr(4))) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("parm expr is NULL",
K(get_param_expr(0)),
K(get_param_expr(1)),
K(get_param_expr(2)),
K(get_param_expr(3)),
K(get_param_expr(4)),
K(ret));
} else {
const ObConstRawExpr* type_expr = static_cast<const ObConstRawExpr*>(get_param_expr(0));
ObObjType type = static_cast<ObObjType>(type_expr->get_value().get_int());
const ObConstRawExpr* collation_expr = static_cast<const ObConstRawExpr*>(get_param_expr(1));
common::ObCollationType cs_type = static_cast<common::ObCollationType>(collation_expr->get_value().get_int());
const ObConstRawExpr* accuracy_expr = static_cast<const ObConstRawExpr*>(get_param_expr(2));
int64_t accuray_value = accuracy_expr->get_value().get_int();
ObAccuracy accuracy;
accuracy.set_accuracy(accuray_value);
const ObConstRawExpr* bool_expr = static_cast<const ObConstRawExpr*>(get_param_expr(3));
bool is_nullable = bool_expr->get_value().get_bool();
const char* type_str = ob_obj_type_str(type);
if (ob_is_string_type(type)) {
if (OB_FAIL(BUF_PRINTF("%s,%s,length:%d,%s,",
type_str,
ObCharset::collation_name(cs_type),
accuracy.get_length(),
is_nullable ? "NULL" : "NOT NULL"))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
}
} else {
if (OB_FAIL(BUF_PRINTF("%s,PS:(%d,%d),%s,",
type_str,
accuracy.get_precision(),
accuracy.get_scale(),
is_nullable ? "NULL" : "NOT NULL"))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
}
}
if (OB_SUCC(ret) && OB_FAIL(get_param_expr(4)->get_name(buf, buf_len, pos, explain_type))) {
LOG_WARN("fail to get_name", K(ret));
}
}
return ret;
}
int ObSequenceRawExpr::assign(const ObSequenceRawExpr& other)
{
int ret = OB_SUCCESS;
if (OB_LIKELY(this != &other)) {
if (OB_FAIL(ObSysFunRawExpr::assign(other))) {
LOG_WARN("failed to assign sys raw expr");
} else {
name_ = other.name_;
action_ = other.action_;
}
}
return ret;
}
int ObSequenceRawExpr::deep_copy(
ObRawExprFactory& expr_factory, const ObSequenceRawExpr& other, const uint64_t copy_types, bool use_new_allocator)
{
int ret = OB_SUCCESS;
if (OB_LIKELY(this != &other)) {
if (OB_FAIL(ObSysFunRawExpr::deep_copy(expr_factory, other, copy_types, use_new_allocator))) {
LOG_WARN("copy in Base class ObSysRawExpr failed", K(ret));
} else if (use_new_allocator) {
if (OB_ISNULL(inner_alloc_)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("inner allocator or expr factory is NULL", K(inner_alloc_), K(ret));
} else if (OB_FAIL(ob_write_string(*inner_alloc_, other.name_, name_))) {
LOG_WARN("fail to write string", K(other.name_), K(ret));
} else if (OB_FAIL(ob_write_string(*inner_alloc_, other.action_, action_))) {
LOG_WARN("fail to write string", K(other.action_), K(ret));
}
} else {
name_ = other.name_;
action_ = other.action_;
}
}
return ret;
}
int ObSequenceRawExpr::set_sequence_meta(
const common::ObString& name, const common::ObString& action, uint64_t sequence_id)
{
int ret = OB_SUCCESS;
if (OB_FAIL(ob_write_string(*inner_alloc_, name, name_))) {
LOG_WARN("fail to write string", K(name), K(ret));
} else if (OB_FAIL(ob_write_string(*inner_alloc_, action, action_))) {
LOG_WARN("fail to write string", K(action), K(ret));
} else {
sequence_id_ = sequence_id;
}
return ret;
}
bool ObSequenceRawExpr::same_as(const ObRawExpr& expr, ObExprEqualCheckContext* check_context) const
{
UNUSED(expr);
UNUSED(check_context);
return false;
}
int ObSequenceRawExpr::get_name_internal(char* buf, const int64_t buf_len, int64_t& pos, ExplainType type) const
{
int ret = OB_SUCCESS;
if (OB_FAIL(BUF_PRINTF("%.*s.%.*s", name_.length(), name_.ptr(), action_.length(), action_.ptr()))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (EXPLAIN_EXTENDED == type) {
if (OB_FAIL(BUF_PRINTF("("))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (OB_FAIL(BUF_PRINTF("%p", this))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (OB_FAIL(BUF_PRINTF(")"))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else {
}
}
return ret;
}
int ObNormalDllUdfRawExpr::set_udf_meta(const share::schema::ObUDF& udf)
{
int ret = OB_SUCCESS;
udf_meta_.tenant_id_ = udf.get_tenant_id();
udf_meta_.ret_ = udf.get_ret();
udf_meta_.type_ = udf.get_type();
/* data from schame, deep copy maybe a better choices */
if (OB_ISNULL(inner_alloc_)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("inner allocator or expr factory is NULL", K(inner_alloc_), K(ret));
} else if (OB_FAIL(ob_write_string(*inner_alloc_, udf.get_name_str(), udf_meta_.name_))) {
LOG_WARN("fail to write string", K(udf.get_name_str()), K(ret));
} else if (OB_FAIL(ob_write_string(*inner_alloc_, udf.get_dl_str(), udf_meta_.dl_))) {
LOG_WARN("fail to write string", K(udf.get_name_str()), K(ret));
} else { /*do nothing*/
}
return ret;
}
int ObNormalDllUdfRawExpr::add_udf_attribute_name(const common::ObString& name)
{
return udf_attributes_.push_back(name);
}
int ObNormalDllUdfRawExpr::add_udf_attribute(const ObRawExpr* expr, const ParseNode* node)
{
int ret = OB_SUCCESS;
if (OB_ISNULL(node) || OB_ISNULL(expr)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("the expr is null", K(ret), K(expr), K(node));
} else if (expr->is_column_ref_expr()) {
const ObColumnRefRawExpr* col_expr = static_cast<const ObColumnRefRawExpr*>(expr);
const ObString& column_name = col_expr->get_column_name();
if (OB_FAIL(add_udf_attribute_name(column_name))) {
LOG_WARN("failed to udf's attribute name", K(ret));
}
} else {
ObString name(node->str_len_, node->str_value_);
if (OB_FAIL(add_udf_attribute_name(name))) {
LOG_WARN("failed to udf's attribute name", K(ret));
}
}
return ret;
}
bool ObNormalDllUdfRawExpr::same_as(const ObRawExpr& expr, ObExprEqualCheckContext* check_context) const
{
UNUSED(expr);
UNUSED(check_context);
return false;
}
int ObNormalDllUdfRawExpr::assign(const ObNormalDllUdfRawExpr& other)
{
int ret = OB_SUCCESS;
if (OB_LIKELY(this != &other)) {
if (OB_FAIL(ObSysFunRawExpr::assign(other))) {
LOG_WARN("failed to assign sys raw expr");
} else {
IGNORE_RETURN udf_meta_.assign(other.get_udf_meta());
}
}
return ret;
}
int ObNormalDllUdfRawExpr::deep_copy(ObRawExprFactory& expr_factory, const ObNormalDllUdfRawExpr& other,
const uint64_t copy_types, bool use_new_allocator)
{
int ret = OB_SUCCESS;
if (OB_LIKELY(this != &other)) {
if (OB_FAIL(ObSysFunRawExpr::deep_copy(expr_factory, other, copy_types, use_new_allocator))) {
LOG_WARN("copy in Base class ObSysRawExpr failed", K(ret));
} else if (use_new_allocator) {
if (OB_ISNULL(inner_alloc_)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("inner allocator or expr factory is NULL", K(inner_alloc_), K(ret));
} else if (OB_FAIL(ob_write_string(*inner_alloc_, other.udf_meta_.name_, udf_meta_.name_))) {
LOG_WARN("fail to write string", K(other.udf_meta_.name_), K(ret));
} else if (OB_FAIL(ob_write_string(*inner_alloc_, other.udf_meta_.dl_, udf_meta_.dl_))) {
LOG_WARN("fail to write string", K(other.udf_meta_.name_), K(ret));
} else {
udf_meta_.ret_ = other.udf_meta_.ret_;
udf_meta_.tenant_id_ = other.udf_meta_.tenant_id_;
udf_meta_.type_ = other.udf_meta_.type_;
}
} else {
IGNORE_RETURN udf_meta_.assign(other.get_udf_meta());
}
}
return ret;
}
int ObPLSQLCodeSQLErrmRawExpr::assign(const ObPLSQLCodeSQLErrmRawExpr& other)
{
int ret = OB_SUCCESS;
if (OB_LIKELY(this != &other)) {
OZ(ObSysFunRawExpr::assign(other));
OX(is_sqlcode_ = other.is_sqlcode_);
}
return ret;
}
int ObPLSQLCodeSQLErrmRawExpr::deep_copy(ObRawExprFactory& expr_factory, const ObPLSQLCodeSQLErrmRawExpr& other,
const uint64_t copy_types, bool use_new_allocator)
{
int ret = OB_SUCCESS;
if (OB_LIKELY(this != &other)) {
OZ(ObSysFunRawExpr::deep_copy(expr_factory, other, copy_types, use_new_allocator));
OX(is_sqlcode_ = other.is_sqlcode_);
}
return ret;
}
ObExprOperator* ObPLSQLCodeSQLErrmRawExpr::get_op()
{
return NULL;
}
int ObSetOpRawExpr::do_visit(ObRawExprVisitor& visitor)
{
return visitor.visit(*this);
}
int ObSetOpRawExpr::replace_expr(const ObIArray<ObRawExpr*>& other_exprs, const ObIArray<ObRawExpr*>& new_exprs)
{
int ret = OB_SUCCESS;
if (OB_FAIL(ObTerminalRawExpr::replace_expr(other_exprs, new_exprs))) {
LOG_WARN("failed to replace expr", K(ret));
} else { /*do nothing*/
}
return ret;
}
bool ObSetOpRawExpr::same_as(const ObRawExpr& expr, ObExprEqualCheckContext* check_context) const
{
bool bool_ret = false;
UNUSED(check_context);
if (&expr == this) {
bool_ret = true;
}
return bool_ret;
}
int ObSetOpRawExpr::deep_copy(
ObRawExprFactory& expr_factory, const ObSetOpRawExpr& other, const uint64_t copy_types, bool use_new_allocator)
{
int ret = OB_SUCCESS;
if (OB_LIKELY(this != &other)) {
if (OB_FAIL(ObTerminalRawExpr::deep_copy(expr_factory, other, copy_types, use_new_allocator))) {
LOG_WARN("copy in Base class ObTerminalRawExpr failed", K(ret));
} else {
idx_ = other.idx_;
}
}
return ret;
}
int ObSetOpRawExpr::assign(const ObSetOpRawExpr& other)
{
int ret = OB_SUCCESS;
if (OB_LIKELY(this != &other)) {
if (OB_FAIL(ObRawExpr::assign(other))) {
LOG_WARN("copy in Base class ObRawExpr failed", K(ret));
} else {
idx_ = other.idx_;
}
}
return ret;
}
int ObSetOpRawExpr::get_name_internal(char* buf, const int64_t buf_len, int64_t& pos, ExplainType type) const
{
int ret = OB_SUCCESS;
const char* op_name = "UNKNOWN";
switch (get_expr_type()) {
case T_OP_UNION:
op_name = "UNION";
break;
case T_OP_INTERSECT:
op_name = "INTERSECT";
break;
case T_OP_EXCEPT:
if (lib::is_oracle_mode()) {
op_name = "MINUS";
} else {
op_name = "EXCEPT";
}
break;
default:
break;
}
if (OB_FAIL(ret)) {
// do nothing
} else if (OB_FAIL(BUF_PRINTF("%s([%ld])", op_name, idx_ + 1))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else {
}
if (OB_SUCCESS == ret && EXPLAIN_EXTENDED == type) {
if (OB_FAIL(BUF_PRINTF("("))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (OB_FAIL(BUF_PRINTF("%p", this))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (OB_FAIL(BUF_PRINTF(")"))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else {
}
}
return ret;
}
const ObRawExpr* ObFunMatchAgainst::get_param_expr(int64_t index) const
{
const ObRawExpr* ret = NULL;
if (index < 0 || index >= 2) {
// do nothing
} else if (0 == index) {
ret = match_columns_;
} else if (1 == index) {
ret = search_key_;
}
return ret;
}
ObRawExpr*& ObFunMatchAgainst::get_param_expr(int64_t index)
{
ObRawExpr** ret = &USELESS_POINTER;
if (index < 0 || index >= 2) {
// do nothing
} else if (0 == index) {
ret = &match_columns_;
} else if (1 == index) {
ret = &search_key_;
}
return *ret;
}
void ObFunMatchAgainst::clear_child()
{
match_columns_ = NULL;
search_key_ = NULL;
real_column_ = NULL;
// search_tree_ = NULL;
mode_flag_ = NATURAL_LANGUAGE_MODE;
}
int ObFunMatchAgainst::replace_expr(
const common::ObIArray<ObRawExpr*>& other_exprs, const common::ObIArray<ObRawExpr*>& new_exprs)
{
int ret = OB_SUCCESS;
if (OB_FAIL(ObRawExpr::replace_expr(other_exprs, new_exprs))) {
LOG_WARN("failed to replace expr", K(ret));
} else if (OB_FAIL(ObTransformUtils::replace_expr(other_exprs, new_exprs, match_columns_))) {
LOG_WARN("failed to replace expr", K(ret));
} else if (OB_FAIL(ObTransformUtils::replace_expr(other_exprs, new_exprs, search_key_))) {
LOG_WARN("failed to replace expr", K(ret));
} else { /*do nothing*/
}
return ret;
}
int ObFunMatchAgainst::do_visit(ObRawExprVisitor& visitor)
{
return visitor.visit(*this);
}
bool ObFunMatchAgainst::same_as(const ObRawExpr& expr, ObExprEqualCheckContext* check_context) const
{
bool bret = false;
if (expr.is_domain_index_func()) {
bret = true;
const ObFunMatchAgainst& other_ma = static_cast<const ObFunMatchAgainst&>(expr);
for (int64_t i = 0; bret && i < other_ma.get_param_count(); ++i) {
if (OB_ISNULL(other_ma.get_param_expr(i)) || OB_ISNULL(get_param_expr(i))) {
bret = false;
} else {
bret = get_param_expr(i)->same_as(*(other_ma.get_param_expr(i)), check_context);
}
}
if (bret) {
bret = (mode_flag_ == other_ma.mode_flag_);
}
}
return bret;
}
uint64_t ObFunMatchAgainst::hash_internal(uint64_t seed) const
{
uint64_t hash_value = seed;
for (int64_t i = 0; i < get_param_count(); ++i) {
if (NULL != get_param_expr(i)) {
hash_value = do_hash(*get_param_expr(i), hash_value);
}
}
return hash_value;
}
int ObFunMatchAgainst::get_name_internal(char* buf, const int64_t buf_len, int64_t& pos, ExplainType type) const
{
UNUSED(buf);
UNUSED(buf_len);
UNUSED(pos);
UNUSED(type);
int ret = OB_SUCCESS;
return ret;
}
int ObSetIterRawExpr::do_visit(ObRawExprVisitor& visitor)
{
return visitor.visit(*this);
}
int ObSetIterRawExpr::get_name_internal(char* buf, const int64_t buf_len, int64_t& pos, ExplainType type) const
{
UNUSED(buf);
UNUSED(buf_len);
UNUSED(pos);
UNUSED(type);
int ret = OB_SUCCESS;
return ret;
}
ObRawExpr*& ObSetIterRawExpr::get_param_expr(int64_t index)
{
ObRawExpr** expr = &USELESS_POINTER;
if (0 == index) {
expr = &left_iter_;
} else if (1 == index) {
expr = &right_iter_;
}
return *expr;
}
const ObRawExpr* ObSetIterRawExpr::get_param_expr(int64_t index) const
{
const ObRawExpr* ret = NULL;
if (0 == index) {
ret = left_iter_;
} else if (1 == index) {
ret = right_iter_;
}
return ret;
}
int ObRowIterRawExpr::do_visit(ObRawExprVisitor& visitor)
{
return visitor.visit(*this);
}
int ObRowIterRawExpr::get_name_internal(char* buf, const int64_t buf_len, int64_t& pos, ExplainType type) const
{
UNUSED(buf);
UNUSED(buf_len);
UNUSED(pos);
UNUSED(type);
int ret = OB_SUCCESS;
return ret;
}
int Bound::deep_copy(
ObRawExprFactory& expr_factory, const Bound& other, const uint64_t copy_types, bool use_new_allocator /*= false*/)
{
int ret = OB_SUCCESS;
type_ = other.type_;
is_preceding_ = other.is_preceding_;
is_nmb_literal_ = other.is_nmb_literal_;
if (OB_FAIL(ObRawExprUtils::copy_expr(
expr_factory, other.interval_expr_, interval_expr_, copy_types, use_new_allocator))) {
LOG_WARN("failed to copy bound", K(ret));
} else if (OB_FAIL(ObRawExprUtils::copy_expr(
expr_factory, other.date_unit_expr_, date_unit_expr_, copy_types, use_new_allocator))) {
LOG_WARN("failed to copy bound", K(ret));
}
for (int i = 0; OB_SUCC(ret) && i < BOUND_EXPR_MAX; ++i) {
if (OB_ISNULL(other.exprs_[i])) {
// do nothing
} else if (OB_FAIL(ObRawExprUtils::copy_expr(
expr_factory, other.exprs_[i], exprs_[i], copy_types, use_new_allocator))) {
LOG_WARN("failed to copy bound expr", K(ret));
}
}
return ret;
}
int Bound::replace_expr(const common::ObIArray<ObRawExpr*>& other_exprs, const common::ObIArray<ObRawExpr*>& new_exprs)
{
int ret = OB_SUCCESS;
if (OB_FAIL(ObTransformUtils::replace_expr(other_exprs, new_exprs, interval_expr_))) {
LOG_WARN("failed to repalce exprs", K(ret));
} else if (OB_FAIL(ObTransformUtils::replace_expr(other_exprs, new_exprs, date_unit_expr_))) {
LOG_WARN("failed to repalce exprs", K(ret));
}
for (int i = 0; OB_SUCC(ret) && i < BOUND_EXPR_MAX; ++i) {
if (OB_ISNULL(exprs_[i])) {
// do nothing
} else if (OB_FAIL(ObTransformUtils::replace_expr(other_exprs, new_exprs, exprs_[i]))) {
LOG_WARN("failed to replace bound expr", K(ret));
}
}
return ret;
}
int ObFrame::assign(const ObFrame& other)
{
int ret = OB_SUCCESS;
if (OB_LIKELY(this != &other)) {
win_type_ = other.win_type_;
is_between_ = other.is_between_;
upper_ = other.upper_;
lower_ = other.lower_;
}
return ret;
}
int ObWindow::assign(const ObWindow& other)
{
int ret = OB_SUCCESS;
if (OB_LIKELY(this != &other)) {
if (OB_FAIL(partition_exprs_.assign(other.partition_exprs_))) {
LOG_WARN("failed to assign partition exprs", K(ret));
} else if (OB_FAIL(order_items_.assign(other.order_items_))) {
LOG_WARN("failed to assign order items", K(ret));
} else if (OB_FAIL(ObFrame::assign(other))) {
LOG_WARN("failed to assign frame", K(ret));
}
}
return ret;
}
void ObWinFunRawExpr::clear_child()
{
func_type_ = T_MAX;
is_distinct_ = false;
func_params_.reset();
partition_exprs_.reset();
order_items_.reset();
}
int ObWinFunRawExpr::assign(const ObWinFunRawExpr& other)
{
int ret = OB_SUCCESS;
if (OB_LIKELY(this != &other)) {
if (OB_FAIL(ObRawExpr::assign(other))) {
LOG_WARN("failed to assign raw expr", K(ret));
} else if (OB_FAIL(ObWindow::assign(other))) {
LOG_WARN("failed to assign window", K(ret));
} else if (OB_FAIL(func_params_.assign(other.func_params_))) {
LOG_WARN("failed to assign func params", K(ret));
} else {
func_type_ = other.func_type_;
is_distinct_ = other.is_distinct_;
is_ignore_null_ = other.is_ignore_null_;
is_from_first_ = other.is_from_first_;
agg_expr_ = other.agg_expr_;
sort_str_ = other.sort_str_;
MEMCPY(upper_.exprs_, other.upper_.exprs_, BOUND_EXPR_MAX);
MEMCPY(lower_.exprs_, other.lower_.exprs_, BOUND_EXPR_MAX);
}
}
return ret;
}
int ObWinFunRawExpr::deep_copy(
ObRawExprFactory& expr_factory, const ObWinFunRawExpr& other, const uint64_t copy_types, bool use_new_allocator)
{
int ret = OB_SUCCESS;
if (OB_LIKELY(this != &other)) {
if (OB_FAIL(ObRawExpr::deep_copy(expr_factory, other, copy_types, use_new_allocator))) {
LOG_WARN("failed to assign raw expr", K(ret));
} else if (OB_FAIL(ObRawExprUtils::copy_expr(expr_factory,
other.agg_expr_,
reinterpret_cast<ObRawExpr*&>(agg_expr_),
COPY_REF_SHARED,
use_new_allocator))) {
LOG_WARN("failed to copy win func", K(ret));
} else if (OB_FAIL(ObRawExprUtils::copy_exprs(
expr_factory, other.func_params_, func_params_, COPY_REF_DEFAULT, use_new_allocator))) {
LOG_WARN("failed to copy func params", K(ret));
} else if (OB_FAIL(ObRawExprUtils::copy_exprs(
expr_factory, other.partition_exprs_, partition_exprs_, COPY_REF_DEFAULT, use_new_allocator))) {
LOG_WARN("failed to copy partition exprs", K(ret));
} else if (OB_FAIL(ObTransformUtils::deep_copy_order_items(
expr_factory, other.order_items_, order_items_, COPY_REF_DEFAULT, use_new_allocator))) {
LOG_WARN("failed to copy order item", K(ret));
} else if (OB_FAIL(upper_.deep_copy(expr_factory, other.upper_, COPY_REF_DEFAULT, use_new_allocator))) {
LOG_WARN("failed to copy upper bound", K(ret));
} else if (OB_FAIL(lower_.deep_copy(expr_factory, other.lower_, COPY_REF_DEFAULT, use_new_allocator))) {
LOG_WARN("failed to copy lower bound", K(ret));
} else {
func_type_ = other.func_type_;
is_distinct_ = other.is_distinct_;
is_from_first_ = other.is_from_first_;
is_ignore_null_ = other.is_ignore_null_;
win_type_ = other.win_type_;
is_between_ = other.is_between_;
}
}
return ret;
}
int ObWinFunRawExpr::replace_param_expr(int64_t index, ObRawExpr* expr)
{
int ret = common::OB_SUCCESS;
int64_t count = agg_expr_ != NULL ? agg_expr_->get_param_count() : 0;
count += func_params_.count();
if (index < count || index >= count + partition_exprs_.count()) {
ret = common::OB_INVALID_ARGUMENT;
LOG_WARN("only replace partition expr supported", K(ret), K(index), K(*this));
} else {
ObRawExpr*& target_expr = partition_exprs_.at(index - count);
if (OB_NOT_NULL(expr) && expr != target_expr) {
expr->set_orig_expr(target_expr);
}
target_expr = expr;
}
return ret;
}
int ObWinFunRawExpr::replace_expr(const ObIArray<ObRawExpr*>& other_exprs, const ObIArray<ObRawExpr*>& new_exprs)
{
int ret = OB_SUCCESS;
if (OB_FAIL(ObRawExpr::replace_expr(other_exprs, new_exprs))) {
LOG_WARN("failed to replace expr", K(ret));
} else if (OB_FAIL(
ObTransformUtils::replace_expr(other_exprs, new_exprs, reinterpret_cast<ObRawExpr*&>(agg_expr_)))) {
LOG_WARN("failed to replace expr", K(ret));
} else if (OB_FAIL(ObTransformUtils::replace_exprs(other_exprs, new_exprs, func_params_))) {
LOG_WARN("failed to replace expr", K(ret));
} else if (OB_FAIL(ObTransformUtils::replace_exprs(other_exprs, new_exprs, partition_exprs_))) {
LOG_WARN("failed to replace expr", K(ret));
} else if (OB_FAIL(ObTransformUtils::replace_expr_for_order_item(other_exprs, new_exprs, order_items_))) {
LOG_WARN("failed to replace expr", K(ret));
} else if (OB_FAIL(upper_.replace_expr(other_exprs, new_exprs))) {
LOG_WARN("failed to replace expr in upper bound", K(ret));
} else if (OB_FAIL(lower_.replace_expr(other_exprs, new_exprs))) {
LOG_WARN("failed to replace expr in lower bound", K(ret));
} else { /*do nothing*/
}
return ret;
}
bool ObWinFunRawExpr::same_as(const ObRawExpr& expr, ObExprEqualCheckContext* check_context) const
{
bool bret = false;
if (expr.is_win_func_expr()) {
bret = true;
const ObWinFunRawExpr& other_ma = static_cast<const ObWinFunRawExpr&>(expr);
if (other_ma.get_func_type() != get_func_type()) {
bret = false;
// Because name window will construct a window function of count(1) over,
// here we need to compare the name of name Windows
// If it is in mysql mode, the name is sensitive,
// and there is no need to de-duplicate when generating count(1) over.
// The oracle mode is true.
} else if (0 != other_ma.win_name_.case_compare(win_name_)) {
bret = false;
} else if (T_WIN_FUN_NTH_VALUE == other_ma.get_func_type() &&
(other_ma.is_from_first_ != is_from_first_ || other_ma.is_ignore_null_ != is_ignore_null_)) {
bret = false;
} else if ((T_WIN_FUN_LAG == other_ma.get_func_type() || T_WIN_FUN_LEAD == other_ma.get_func_type()) &&
other_ma.is_ignore_null_ != is_ignore_null_) {
bret = false;
} else if (agg_expr_ != NULL && other_ma.agg_expr_ != NULL) {
bret = agg_expr_->same_as(*(other_ma.agg_expr_), check_context) ? true : false;
} else { /* do nothing. */
}
if (bret &&
(other_ma.get_param_count() != get_param_count() || other_ma.func_params_.count() != func_params_.count() ||
other_ma.partition_exprs_.count() != partition_exprs_.count() ||
other_ma.order_items_.count() != order_items_.count())) {
bret = false;
} else {
for (int64_t i = 0; bret && i < other_ma.get_param_count(); ++i) {
if (OB_ISNULL(other_ma.get_param_expr(i)) || OB_ISNULL(get_param_expr(i))) {
bret = false;
} else {
bret = get_param_expr(i)->same_as(*(other_ma.get_param_expr(i)), check_context);
}
}
for (int64_t i = 0; bret && i < other_ma.order_items_.count(); ++i) {
if (other_ma.order_items_.at(i).order_type_ != order_items_.at(i).order_type_) {
bret = false;
}
}
}
}
return bret;
}
const ObRawExpr* ObWinFunRawExpr::get_param_expr(int64_t index) const
{
int i = 0;
ObRawExpr* expr = NULL;
for (int64_t j = 0; NULL == expr && agg_expr_ != NULL && j < agg_expr_->get_param_count(); ++j) {
if (i++ == index) {
expr = agg_expr_->get_param_expr(j);
}
}
for (int64_t j = 0; NULL == expr && j < func_params_.count(); ++j) {
if (i++ == index) {
expr = func_params_.at(j);
}
}
for (int64_t j = 0; NULL == expr && j < partition_exprs_.count(); ++j) {
if (i++ == index) {
expr = partition_exprs_.at(j);
}
}
for (int64_t j = 0; NULL == expr && j < order_items_.count(); ++j) {
if (i++ == index) {
expr = order_items_.at(j).expr_;
}
}
if (NULL == expr) {
if (upper_.interval_expr_ != NULL) {
if (i++ == index) {
expr = upper_.interval_expr_;
}
}
}
if (NULL == expr) {
if (lower_.interval_expr_ != NULL) {
if (i++ == index) {
expr = lower_.interval_expr_;
}
}
}
for (int64_t j = 0; j < 2 && NULL == expr; ++j) {
const Bound* bound = 0 == j ? &upper_ : &lower_;
for (int64_t k = 0; k < BOUND_EXPR_MAX && NULL == expr; ++k) {
if (NULL != bound->exprs_[k]) {
if (i++ == index) {
expr = bound->exprs_[k];
}
}
}
}
return expr;
}
ObRawExpr*& ObWinFunRawExpr::get_param_expr(int64_t index)
{
int i = 0;
for (int64_t j = 0; agg_expr_ != NULL && j < agg_expr_->get_param_count(); ++j) {
if (i++ == index) {
return agg_expr_->get_param_expr(j);
}
}
for (int64_t j = 0; j < func_params_.count(); ++j) {
if (i++ == index) {
return func_params_.at(j);
}
}
for (int64_t j = 0; j < partition_exprs_.count(); ++j) {
if (i++ == index) {
return partition_exprs_.at(j);
}
}
for (int64_t j = 0; j < order_items_.count(); ++j) {
if (i++ == index) {
return order_items_.at(j).expr_;
}
}
if (upper_.interval_expr_ != NULL) {
if (i++ == index) {
return upper_.interval_expr_;
}
}
if (lower_.interval_expr_ != NULL) {
if (i++ == index) {
return lower_.interval_expr_;
}
}
for (int64_t j = 0; j < 2; ++j) {
Bound* bound = 0 == j ? &upper_ : &lower_;
for (int64_t k = 0; k < BOUND_EXPR_MAX; ++k) {
if (NULL != bound->exprs_[k]) {
if (i++ == index) {
return bound->exprs_[k];
}
}
}
}
return USELESS_POINTER;
}
int ObWinFunRawExpr::do_visit(ObRawExprVisitor& visitor)
{
return visitor.visit(*this);
}
uint64_t ObWinFunRawExpr::hash_internal(uint64_t seed) const
{
uint64_t hash_value = seed;
for (int64_t i = 0; i < get_param_count(); ++i) {
if (NULL != get_param_expr(i)) {
hash_value = do_hash(*get_param_expr(i), hash_value);
}
}
return hash_value;
}
int ObWinFunRawExpr::get_name_internal(char* buf, const int64_t buf_len, int64_t& pos, ExplainType type) const
{
int ret = OB_SUCCESS;
if (agg_expr_ != NULL) {
ret = get_agg_expr()->get_name(buf, buf_len, pos, type);
} else {
if (OB_FAIL(BUF_PRINTF("%s(", get_type_name(func_type_)))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
}
// partition_by && order_by will be printed in ObLogWindowFunction operator
for (int64_t i = 0; OB_SUCC(ret) && i < func_params_.count(); ++i) {
ObRawExpr* func_param;
if (0 != i) {
if (OB_FAIL(BUF_PRINTF(","))) {
LOG_WARN("Failed to add comma", K(ret));
}
}
if (OB_SUCC(ret) && OB_ISNULL(func_param = func_params_.at(i))) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("func param is NULL", K(ret));
} else if (OB_SUCC(ret) && OB_FAIL(func_param->get_name(buf, buf_len, pos, type))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
}
}
if (OB_SUCC(ret) && OB_FAIL(BUF_PRINTF(")"))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
}
}
if (OB_SUCCESS == ret && EXPLAIN_EXTENDED == type) {
if (OB_FAIL(BUF_PRINTF("("))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (OB_FAIL(BUF_PRINTF("%p", this))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (OB_FAIL(BUF_PRINTF(")"))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else {
}
}
return ret;
}
OB_SERIALIZE_MEMBER(Bound, type_, is_preceding_, is_nmb_literal_);
int ObPseudoColumnRawExpr::assign(const ObPseudoColumnRawExpr& other)
{
int ret = OB_SUCCESS;
if (OB_LIKELY(this != &other)) {
if (OB_FAIL(ObTerminalRawExpr::assign(other))) {
LOG_WARN("fail to assign", K(ret));
} else {
cte_cycle_value_ = other.cte_cycle_value_;
cte_cycle_default_value_ = other.cte_cycle_default_value_;
table_id_ = other.table_id_;
}
}
return ret;
}
int ObPseudoColumnRawExpr::deep_copy(ObRawExprFactory& expr_factory, const ObPseudoColumnRawExpr& other,
const uint64_t copy_types, bool use_new_allocator)
{
int ret = OB_SUCCESS;
if (OB_LIKELY(this != &other)) {
if (OB_FAIL(ObTerminalRawExpr::deep_copy(expr_factory, other, copy_types, use_new_allocator))) {
LOG_WARN("fail to assign", K(ret));
} else {
cte_cycle_value_ = other.cte_cycle_value_;
cte_cycle_default_value_ = other.cte_cycle_default_value_;
table_id_ = other.table_id_;
}
}
return ret;
}
int ObPseudoColumnRawExpr::replace_expr(const ObIArray<ObRawExpr*>& other_exprs, const ObIArray<ObRawExpr*>& new_exprs)
{
int ret = OB_SUCCESS;
if (OB_FAIL(ObTerminalRawExpr::replace_expr(other_exprs, new_exprs))) {
LOG_WARN("failed to replace expr", K(ret));
} else { /*do nothing*/
}
return ret;
}
bool ObPseudoColumnRawExpr::same_as(const ObRawExpr& expr, ObExprEqualCheckContext* check_context /* = NULL*/) const
{
UNUSED(check_context);
return type_ == expr.get_expr_type();
}
int ObPseudoColumnRawExpr::do_visit(ObRawExprVisitor& visitor)
{
return visitor.visit(*this);
}
uint64_t ObPseudoColumnRawExpr::hash_internal(uint64_t seed) const
{
return do_hash(get_expr_type(), seed);
}
int ObPseudoColumnRawExpr::get_name_internal(char* buf, const int64_t buf_len, int64_t& pos, ExplainType type) const
{
int ret = OB_SUCCESS;
UNUSED(type);
switch (get_expr_type()) {
case T_LEVEL:
if (OB_FAIL(BUF_PRINTF("LEVEL"))) {
LOG_WARN("fail to print", K(ret));
}
break;
case T_CONNECT_BY_ISCYCLE:
if (OB_FAIL(BUF_PRINTF("CONNECT_BY_ISCYCLE"))) {
LOG_WARN("fail to print", K(ret));
}
break;
case T_CONNECT_BY_ISLEAF:
if (OB_FAIL(BUF_PRINTF("CONNECT_BY_ISLEAF"))) {
LOG_WARN("fail to print", K(ret));
}
break;
case T_CTE_SEARCH_COLUMN:
if (OB_FAIL(BUF_PRINTF("T_CTE_SEARCH_COLUMN"))) {
LOG_WARN("fail to print", K(ret));
}
break;
case T_CTE_CYCLE_COLUMN:
if (OB_FAIL(BUF_PRINTF("T_CTE_CYCLE_COLUMN"))) {
LOG_WARN("fail to print", K(ret));
}
break;
case T_ORA_ROWSCN:
if (OB_FAIL(BUF_PRINTF("ORA_ROWSCN"))) {
LOG_WARN("failed to print", K(ret));
}
break;
case T_PDML_PARTITION_ID:
if (OB_FAIL(BUF_PRINTF("PARTITION_ID"))) {
LOG_WARN("failed to print", K(ret));
}
break;
default:
ret = OB_ERR_UNEXPECTED;
LOG_WARN("invalid expr type", K(get_expr_type()));
}
if (OB_SUCC(ret) && EXPLAIN_EXTENDED == type) {
if (OB_FAIL(BUF_PRINTF("("))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (OB_FAIL(BUF_PRINTF("%p", this))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else if (OB_FAIL(BUF_PRINTF(")"))) {
LOG_WARN("fail to BUF_PRINTF", K(ret));
} else {
}
}
return ret;
}
ObRawExprPointer::ObRawExprPointer() : expr_group_()
{}
ObRawExprPointer::~ObRawExprPointer()
{}
int ObRawExprPointer::get(ObRawExpr*& expr)
{
int ret = OB_SUCCESS;
if (expr_group_.count() <= 0 || OB_ISNULL(expr_group_.at(0))) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("expr pointer is not set", K(ret));
} else {
expr = *(expr_group_.at(0));
}
return ret;
}
int ObRawExprPointer::set(ObRawExpr* expr)
{
int ret = OB_SUCCESS;
for (int64_t i = 0; OB_SUCC(ret) && i < expr_group_.count(); ++i) {
if (OB_ISNULL(expr_group_.at(i))) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("expr pointer is null", K(ret));
} else if (*expr_group_.at(i) == expr) {
// not changed
break;
} else {
*expr_group_.at(i) = expr;
}
}
return ret;
}
int ObRawExprPointer::add_ref(ObRawExpr** expr)
{
return expr_group_.push_back(expr);
}
int ObMultiSetRawExpr::assign(const ObMultiSetRawExpr& other)
{
int ret = OB_SUCCESS;
if (OB_FAIL(ObOpRawExpr::assign(other))) {
LOG_WARN("failed to assign multiset expr", K(ret));
} else {
ms_type_ = other.ms_type_;
ms_modifier_ = other.ms_modifier_;
}
return ret;
}
int ObMultiSetRawExpr::deep_copy(
ObRawExprFactory& expr_factory, const ObMultiSetRawExpr& other, const uint64_t copy_types, bool use_new_allocator)
{
int ret = OB_SUCCESS;
if (OB_FAIL(ObOpRawExpr::deep_copy(expr_factory, other, copy_types, use_new_allocator))) {
LOG_WARN("failed to deep copy multiset op", K(ret));
} else {
ms_type_ = other.ms_type_;
ms_modifier_ = other.ms_modifier_;
}
return ret;
}
bool ObMultiSetRawExpr::same_as(const ObRawExpr& expr, ObExprEqualCheckContext* check_context) const
{
return ObOpRawExpr::same_as(expr, check_context);
}
int ObCollPredRawExpr::assign(const ObCollPredRawExpr& other)
{
int ret = OB_SUCCESS;
if (OB_FAIL(ObMultiSetRawExpr::assign(other))) {
LOG_WARN("failed to assign multiset expr", K(ret));
} else {
}
return ret;
}
int ObCollPredRawExpr::deep_copy(
ObRawExprFactory& expr_factory, const ObCollPredRawExpr& other, const uint64_t copy_types, bool use_new_allocator)
{
int ret = OB_SUCCESS;
if (OB_FAIL(ObMultiSetRawExpr::deep_copy(expr_factory, other, copy_types, use_new_allocator))) {
LOG_WARN("failed to deep copy multiset op", K(ret));
} else {
}
return ret;
}
bool ObCollPredRawExpr::same_as(const ObRawExpr& expr, ObExprEqualCheckContext* check_context) const
{
return ObMultiSetRawExpr::same_as(expr, check_context);
}
int ObExprParamCheckContext::init(const ObQueryCtx* context)
{
int ret = OB_SUCCESS;
if (OB_ISNULL(context)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get unexpected null", K(ret));
} else {
context_ = context;
}
return ret;
}
bool ObExprParamCheckContext::compare_const(const ObConstRawExpr& left, const ObConstRawExpr& right)
{
int& ret = err_code_;
bool bret = false;
if (OB_FAIL(ret)) {
/*do nothing*/
} else if (OB_ISNULL(context_)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("context is null", K(ret));
} else if (&left == &right) {
bret = true;
} else if (left.get_result_type() != right.get_result_type()) {
/*do thing*/
} else if (left.has_flag(IS_PARAM) && right.has_flag(IS_PARAM)) {
bool is_left_calc_item = false;
bool is_right_calc_item = false;
if (OB_FAIL(is_pre_calc_item(left, is_left_calc_item))) {
LOG_WARN("failed to is pre calc item", K(ret));
} else if (OB_FAIL(is_pre_calc_item(right, is_right_calc_item))) {
LOG_WARN("failed to is pre calc item", K(ret));
} else if (is_left_calc_item && is_right_calc_item) {
const ObRawExpr* left_param = NULL;
const ObRawExpr* right_param = NULL;
if (OB_FAIL(get_calc_expr(left.get_value().get_unknown(), left_param))) {
LOG_WARN("faield to get calculable expr", K(ret));
} else if (OB_FAIL(get_calc_expr(right.get_value().get_unknown(), right_param))) {
LOG_WARN("failed to get calculable expr", K(ret));
} else if (OB_ISNULL(left_param) || OB_ISNULL(right_param)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("param exprs are null", K(ret), K(left_param), K(right_param));
} else {
bret = left_param->same_as(*right_param, this);
}
} else if (is_left_calc_item || is_right_calc_item) {
bret = false;
} else {
ObPCParamEqualInfo info;
info.first_param_idx_ = left.get_value().get_unknown();
info.second_param_idx_ = right.get_value().get_unknown();
if (info.first_param_idx_ == info.second_param_idx_) {
bret = true;
} else {
for (int64_t i = 0; OB_SUCC(ret) && !bret && i < context_->all_equal_param_constraints_.count(); ++i) {
if (context_->all_equal_param_constraints_.at(i).first_param_idx_ == info.first_param_idx_ &&
context_->all_equal_param_constraints_.at(i).second_param_idx_ == info.second_param_idx_) {
bret = true;
} else if (context_->all_equal_param_constraints_.at(i).first_param_idx_ == info.second_param_idx_ &&
context_->all_equal_param_constraints_.at(i).second_param_idx_ == info.first_param_idx_) {
bret = true;
} else { /*do nothing*/
}
}
}
}
} else if (left.has_flag(IS_PARAM) || right.has_flag(IS_PARAM)) {
/*do nothing*/
} else {
bret = left.get_value().is_equal(right.get_value(), CS_TYPE_BINARY);
}
return bret;
}
int ObExprParamCheckContext::is_pre_calc_item(const ObConstRawExpr& const_expr, bool& is_calc)
{
int ret = OB_SUCCESS;
int64_t calc_count = 0;
is_calc = false;
if (OB_ISNULL(context_) || OB_UNLIKELY((calc_count = context_->calculable_items_.count()) < 0 ||
const_expr.get_expr_type() != T_QUESTIONMARK)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get unexpected error", K(ret), K(context_), K(const_expr.get_expr_type()), K(calc_count));
} else if (const_expr.has_flag(IS_EXEC_PARAM)) {
is_calc = true;
} else if (calc_count > 0) {
int64_t q_idx = const_expr.get_value().get_unknown();
int64_t min_calc_index = context_->calculable_items_.at(0).hidden_idx_;
if (OB_UNLIKELY(q_idx < 0 || min_calc_index < 0)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get invalid argument", K(q_idx), K(min_calc_index));
} else if (q_idx - min_calc_index >= 0 && q_idx - min_calc_index < calc_count) {
is_calc = true;
} else { /*do nothing*/
}
}
return ret;
}
int ObExprParamCheckContext::get_calc_expr(const int64_t param_idx, const ObRawExpr*& expr)
{
int ret = OB_SUCCESS;
if (OB_ISNULL(context_) || context_->calculable_items_.count() <= 0) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("query context is null", K(ret));
} else {
int64_t offset = param_idx - context_->calculable_items_.at(0).hidden_idx_;
if (offset < 0 || offset >= context_->calculable_items_.count() ||
param_idx != context_->calculable_items_.at(offset).hidden_idx_) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("invalid param index", K(ret), K(param_idx), K(offset));
} else {
expr = context_->calculable_items_.at(offset).expr_;
}
}
return ret;
}
} // namespace sql
} // namespace oceanbase
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