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oceanbase/src/sql/ob_sql_utils.h
xianyu-w 1858194fc4 Fix printer bugs
2023-06-22 03:42:42 +00:00

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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.
*/
#ifndef _OCEANBASE_SQL_OB_SQL_UTILS_H
#define _OCEANBASE_SQL_OB_SQL_UTILS_H
#include "common/ob_range.h"
#include "common/object/ob_object.h"
#include "lib/container/ob_vector.h"
#include "lib/container/ob_2d_array.h"
#include "lib/mysqlclient/ob_mysql_connection.h"
#include "lib/geo/ob_s2adapter.h"
#include "share/partition_table/ob_partition_location.h"
#include "share/ob_i_sql_expression.h" // ObISqlExpression,ObExprCtx
#include "share/schema/ob_table_param.h" // ObColDesc
#include "share/schema/ob_multi_version_schema_service.h" // ObMultiVersionSchemaService
#include "sql/ob_phy_table_location.h"
#include "sql/ob_sql_define.h"
#include "sql/parser/parse_node.h"
#include "sql/resolver/ob_stmt_type.h"
#include "sql/optimizer/ob_phy_table_location_info.h"
#include "sql/engine/expr/ob_expr_frame_info.h"
#include "sql/monitor/flt/ob_flt_span_mgr.h"
namespace oceanbase
{
namespace share {
class ObBackupStorageInfo;
}
namespace sql
{
class RowDesc;
class ObSQLSessionInfo;
class ObRawExpr;
class ObRawExprPointer;
class ObStmt;
class ObDMLStmt;
class ObOpRawExpr;
class OrderItem;
class ObTaskExecutorCtx;
class ObTableLocation;
class ObPhyTableLocation;
class ObQueryRange;
class ObSqlExpression;
class ObPhysicalPlan;
class ObExprResType;
class ObStmtHint;
struct ObTransformerCtx;
struct ObPreCalcExprFrameInfo;
typedef common::ObSEArray<common::ObNewRange *, 1> ObQueryRangeArray;
struct ObExprConstraint;
typedef common::ObSEArray<common::ObSpatialMBR, 1> ObMbrFilterArray;
class ObSelectStmt;
struct EstimatedPartition {
common::ObAddr addr_;
common::ObTabletID tablet_id_;
share::ObLSID ls_id_;
EstimatedPartition() : addr_(), tablet_id_(), ls_id_()
{}
bool is_valid() const {
return addr_.is_valid() && tablet_id_.is_valid() && ls_id_.is_valid();
}
void reset() {
addr_.reset();
tablet_id_.reset();
ls_id_.reset();
}
void set(const common::ObAddr &addr,
const common::ObTabletID &tablet_id,
const share::ObLSID &ls_id) {
addr_ = addr;
tablet_id_ = tablet_id;
ls_id_ = ls_id;
}
TO_STRING_KV(K_(addr), K_(tablet_id), K_(ls_id));
};
struct ObHiddenColumnItem
{
ObHiddenColumnItem()
{
expr_ = NULL;
hidden_idx_ = common::OB_INVALID_INDEX;
}
ObRawExpr* expr_;
int64_t hidden_idx_;
TO_STRING_KV(K_(hidden_idx));
};
class ObSqlArrayExpandGuard
{
public:
ObSqlArrayExpandGuard(ParamStore &params, common::ObIAllocator &allocator);
~ObSqlArrayExpandGuard();
int get_errcode() const { return ret_; }
private:
typedef std::pair<common::ObObjParam*, common::ObObjParam> ArrayObjPair;
common::ObList<ArrayObjPair, common::ObIAllocator> array_obj_list_;
int ret_;
};
class ObISqlPrinter
{
protected:
virtual int inner_print(char *buf, int64_t buf_len, int64_t &pos) = 0;
public:
virtual int do_print(ObIAllocator &allocator, ObString &result);
virtual ~ObISqlPrinter() = default;
};
class ObSqlPrinter : public ObISqlPrinter
{
public:
ObSqlPrinter(const ObStmt *stmt,
ObSchemaGetterGuard *schema_guard,
ObObjPrintParams print_params,
const ParamStore *param_store) :
stmt_(stmt),
schema_guard_(schema_guard),
print_params_(print_params),
param_store_(param_store)
{}
virtual int inner_print(char *buf, int64_t buf_len, int64_t &res_len) override;
protected:
const ObStmt *stmt_;
ObSchemaGetterGuard *schema_guard_;
ObObjPrintParams print_params_;
const ParamStore *param_store_;
};
class ObSQLUtils
{
public:
const static int64_t WITHOUT_FUNC_REGEXP = 1;
const static int64_t WITHOUT_FUNC_ADDR_TO_PARTITION_ID = 2;
const static int64_t OB_MYSQL50_TABLE_NAME_PREFIX_LENGTH = 9;
const static int64_t NO_VALUES = -1; //表示没有values()
const static int64_t VALUE_LIST_LEVEL = 0; //表示在parse的T_VALUE_LIST层
const static int64_t VALUE_VECTOR_LEVEL = 1;//表示在parse的T_VALUE_VECTOR层
static bool is_trans_commit_need_disconnect_err(int err);
static void check_if_need_disconnect_after_end_trans(const int end_trans_err,
const bool is_rollback,
const bool is_explicit,
bool &is_need_disconnect);
/**
* This function gets a list of partition ids from a list of ranges
* and a partition func.
*
* The range array is assumed to only contain single_value ranges and
* the partition_ids will contain all the resulted partition ids without
* duplicates.
*/
static int calc_partition_ids(const common::ObIArray<common::ObNewRange*> &ranges,
const ObSqlExpression &partition_func,
const uint64_t part_num,
common::ObIArray<uint64_t> &partition_ids);
static int get_phy_plan_type(common::ObIArray<share::ObPartitionLocation> &part_location_set,
const common::ObAddr &my_address,
ObPhyPlanType &plan_type);
static int has_outer_join_symbol(const ParseNode *node, bool &has);
static int replace_questionmarks(ParseNode *tree,
const ParamStore &params);
static int calc_const_or_calculable_expr(ObExecContext *exec_ctx,
const ObRawExpr *raw_expr,
common::ObObj &result,
bool &is_valid,
common::ObIAllocator &allocator,
bool ignore_failure = true,
ObIArray<ObExprConstraint> *constraints = NULL);
static int calc_simple_expr_without_row(ObSQLSessionInfo *session,
const ObRawExpr *raw_expr,
common::ObObj &result,
const ParamStore *params,
common::ObIAllocator &allocator);
static int calc_raw_expr_without_row(ObExecContext &exec_ctx,
const ObRawExpr *raw_expr,
ObObj &result,
const ParamStore *params,
ObIAllocator &allocator);
static void clear_expr_eval_flags(const ObExpr &expr, ObEvalCtx &ctx);
static int calc_sql_expression_without_row(ObExecContext &exec_ctx,
const ObISqlExpression &expr,
ObObj &result,
ObIAllocator *allocator = NULL);
static int calc_const_expr(const ObRawExpr *expr,
const ParamStore *params,
common::ObObj &result,
bool &need_check);
template<class T>
static int get_param_value(const common::ObObj &param,
const ParamStore &params_array,
T &result,
bool &need_check)
{
int ret = common::OB_SUCCESS;
int64_t param_idx = -1;
need_check = false;
if (param.is_unknown()) {
if (OB_FAIL(param.get_unknown(param_idx))) {
SQL_LOG(WARN, "get question mark value failed", K(param), K(ret));
} else if (param_idx < 0 || param_idx >= params_array.count()) {
ret = common::OB_ERR_ILLEGAL_INDEX;
SQL_LOG(WARN, "Wrong index of question mark position", K(ret), K(param_idx));
} else {
need_check = params_array.at(param_idx).need_to_check_bool_value();
result = params_array.at(param_idx);
if (result.is_nop_value()) {
ret = common::OB_ERR_NOP_VALUE;
}
}
}
return ret;
}
static void access_expr_sanity_check(const ObIArray<ObExpr *> &exprs,
ObEvalCtx &eval_ctx,
int64_t check_size)
{
SQL_LOG(TRACE, "enable datum ptr check", K(exprs), K(check_size));
auto expr_idx = 0;
FOREACH_CNT(e, exprs) {
if (OB_ISNULL((*e)->eval_func_) &&
OB_ISNULL((*e)->eval_batch_func_) && ((*e)->arg_cnt_ == 0) &&
!((*e)->is_variable_res_buf())) {
// exclude generated column, string type column
auto datum = (*e)->locate_batch_datums(eval_ctx);
if ((*e)->is_batch_result()) {
for (auto idx = 0; idx < check_size; idx++) {
const char *datum_ptr = datum[idx].ptr_;
const char *res_ptr = eval_ctx.frames_[(*e)->frame_idx_] + (*e)->res_buf_off_
+ (*e)->res_buf_len_ * idx;
if (datum_ptr != res_ptr) {
SQL_LOG_RET(WARN, OB_ERR_UNEXPECTED, "sanity check failure, column index", K(expr_idx), K(idx),
KP(datum_ptr), KP(res_ptr), KP(*e), K(eval_ctx));
abort();
}
}
} else {
const char *datum_ptr = datum->ptr_;
const char *res_ptr = eval_ctx.frames_[(*e)->frame_idx_] + (*e)->res_buf_off_;
if (datum_ptr != res_ptr) {
SQL_LOG_RET(WARN, OB_ERR_UNEXPECTED, "sanity check failure, column index",
K(expr_idx), KP(datum_ptr), KP(res_ptr), KP(*e), K(eval_ctx));
abort();
}
}
}
expr_idx++;
}
}
static int is_charset_data_version_valid(ObCharsetType charset_type, const int64_t tenant_id);
static int calc_calculable_expr(ObSQLSessionInfo *session,
const ObRawExpr *expr,
common::ObObj &result,
common::ObIAllocator *allocator,
const ParamStore &params_array);
static int calc_const_expr(ObExecContext &exec_ctx,
const ObRawExpr *expr,
common::ObObj &result,
common::ObIAllocator &allocator,
const ParamStore &params_array);
static int calc_const_expr(ObSQLSessionInfo *session,
const ObRawExpr &expr,
ObObj &result,
ObIAllocator &allocator,
const ParamStore &params_array,
ObExecContext* exec_ctx = NULL);
// Calc const expr value under static engine.
static int se_calc_const_expr(ObSQLSessionInfo *session,
const ObRawExpr *expr,
const ParamStore &params,
ObIAllocator &allocator,
ObExecContext *exec_ctx,
common::ObObj &result);
static int make_generated_expression_from_str(const common::ObString &expr_str,
const share::schema::ObTableSchema &schema,
const share::schema::ObColumnSchemaV2 &gen_col,
const common::ObIArray<share::schema::ObColDesc> &col_ids,
common::ObIAllocator &allocator,
ObTempExpr *&temp_expr);
static int make_generated_expression_from_str(const common::ObString &expr_str,
ObSQLSessionInfo &session,
const share::schema::ObTableSchema &schema,
const share::schema::ObColumnSchemaV2 &gen_col,
const common::ObIArray<share::schema::ObColDesc> &col_ids,
common::ObIAllocator &allocator,
ObTempExpr *&temp_expr);
static int make_default_expr_context(uint64_t tenant_id, ObIAllocator &allocator, ObExprCtx &expr_ctx);
static int calc_sql_expression(const ObTempExpr *expr,
const ObIArray<share::schema::ObColDesc> &col_ids,
const ObNewRow &row,
ObExecContext &exec_ctx,
ObObj &result);
static void destruct_default_expr_context(ObExprCtx &expr_ctx);
static int64_t get_usec();
static int check_and_convert_db_name(const common::ObCollationType cs_type, const bool preserve_lettercase,
common::ObString &name);
static int cvt_db_name_to_org(share::schema::ObSchemaGetterGuard &schema_guard,
const ObSQLSessionInfo *session,
common::ObString &name);
static int check_and_convert_table_name(const common::ObCollationType cs_type,
const bool preserve_lettercase,
common::ObString &name,
const stmt::StmtType stmt_type = stmt::T_NONE,
const bool is_index_table = false);
static int check_index_name(const common::ObCollationType cs_type, common::ObString &name);
static int check_column_name(const common::ObCollationType cs_type, common::ObString &name);
static int check_and_copy_column_alias_name(const common::ObCollationType cs_type, const bool is_auto_gen,
common::ObIAllocator *allocator, common::ObString &name);
static int check_and_convert_context_namespace(const common::ObCollationType cs_type,
common::ObString &name);
static bool cause_implicit_commit(ParseResult &result);
static bool is_end_trans_stmt(const ParseResult &result);
static bool is_commit_stmt(const ParseResult &result);
static bool is_modify_tenant_stmt(ParseResult &result);
static bool is_mysql_ps_not_support_stmt(const ParseResult &result);
static bool is_readonly_stmt(ParseResult &result);
static int make_field_name(const char *src, int64_t len, const common::ObCollationType cs_type,
common::ObIAllocator *allocator, common::ObString &name);
static int set_compatible_cast_mode(const ObSQLSessionInfo *session, ObCastMode &cast_mode);
static int get_default_cast_mode(const stmt::StmtType &stmt_type,
const ObSQLSessionInfo *session,
common::ObCastMode &cast_mode);
static int get_default_cast_mode(const ObPhysicalPlan *plan,
const ObSQLSessionInfo *session,
common::ObCastMode &cast_mode);
static int get_default_cast_mode(const ObSQLSessionInfo *session, common::ObCastMode &cast_mode);
// 比上面三个方法多了一些cast mode的设置，例如:
// CM_EXPLICIT_CAST, CM_ZERO_FILL, CM_STRICT_MODE
static int get_default_cast_mode(const bool is_explicit_cast,
const uint32_t result_flag,
const ObSQLSessionInfo *session,
common::ObCastMode &cast_mode);
static int check_well_formed_str(const ObString &src_str, const ObCollationType cs_type,
ObString &dst_str, bool &is_null,
const bool is_strict_mode,
const bool ret_error = false);
static int check_well_formed_str(const common::ObObj &src,
common::ObObj &dest,
const bool is_strict_mode,
const bool ret_error = false);
static void set_insert_update_scope(common::ObCastMode &cast_mode);
static bool is_insert_update_scope(common::ObCastMode &cast_mode);
static common::ObCollationLevel transform_cs_level(const common::ObCollationLevel cs_level);
static int set_cs_level_cast_mode(const common::ObCollationLevel cs_level,
common::ObCastMode &cast_mode);
static int get_cs_level_from_cast_mode(const common::ObCastMode cast_mode,
const common::ObCollationLevel default_level,
common::ObCollationLevel &cs_level);
static int get_outline_key(common::ObIAllocator &allocator,
const ObSQLSessionInfo *session,
const common::ObString &query_sql,
common::ObString &outline_key,
share::schema::ObMaxConcurrentParam::FixParamStore &fixed_param_store,
ParseMode mode,
bool &has_questionmark_in_sql);
static int md5(const common::ObString &stmt, char *sql_id, int32_t len);
static int filter_hint_in_query_sql(common::ObIAllocator &allocator,
const ObSQLSessionInfo &session,
const common::ObString &sql,
common::ObString &param_sql);
static int filter_head_space(ObString &sql);
static char find_first_empty_char(const ObString &sql);
static int construct_outline_sql(common::ObIAllocator &allocator,
const ObSQLSessionInfo &session,
const common::ObString &outline_content,
const common::ObString &orig_sql,
bool is_need_filter_hint,
common::ObString &outline_sql);
static int reconstruct_sql(ObIAllocator &allocator, const ObStmt *stmt, ObString &sql,
ObSchemaGetterGuard *schema_guard,
ObObjPrintParams print_params = ObObjPrintParams(),
const ParamStore *param_store = NULL);
static int print_sql(char *buf,
int64_t buf_len,
int64_t &pos,
const ObStmt *stmt,
ObSchemaGetterGuard *schema_guard,
ObObjPrintParams print_params,
const ParamStore *param_store = NULL);
static int wrap_expr_ctx(const stmt::StmtType &stmt_type,
ObExecContext &exec_ctx,
common::ObIAllocator &allocator,
common::ObExprCtx &expr_ctx);
// use get_tablet_ranges instead.
static int extract_pre_query_range(const ObQueryRange &pre_query_range,
common::ObIAllocator &allocator,
ObExecContext &exec_ctx,
ObQueryRangeArray &key_ranges,
const ObDataTypeCastParams &dtc_params);
static int extract_equal_pre_query_range(const ObQueryRange &pre_query_range,
void *range_buffer,
const ParamStore &param_store,
ObQueryRangeArray &key_ranges);
static int extract_geo_query_range(const ObQueryRange &pre_query_range,
ObIAllocator &allocator,
ObExecContext &exec_ctx,
ObQueryRangeArray &key_ranges,
ObMbrFilterArray &mbr_filters,
const ObDataTypeCastParams &dtc_params);
static bool is_same_type(const ObExprResType &type1, const ObExprResType &type2);
static bool is_same_type(const ObObjMeta &meta1,
const ObObjMeta &meta2,
const ObAccuracy &accuracy1,
const ObAccuracy &accuracy2);
static bool is_same_type_for_compare(const ObObjMeta &meta1,
const ObObjMeta &meta2);
static int get_partition_range(ObObj *start_row_key,
ObObj *end_row_key,
ObObj *function_obj,
const share::schema::ObPartitionFuncType part_type,
const ObSqlExpression &part_expr,
int64_t range_key_count,
uint64_t table_id,
ObExprCtx &expr_ctx,
common::ObNewRange &partition_range);
static int get_partition_range(ObObj *start_row_key,
ObObj *end_row_key,
ObObj *function_obj,
const share::schema::ObPartitionFuncType part_type,
const ObExpr *part_expr,
int64_t range_key_count,
uint64_t table_id,
ObEvalCtx &eval_ctx,
common::ObNewRange &partition_range);
static int revise_hash_part_object(common::ObObj &obj,
const ObNewRow &row,
const bool calc_oracle_hash,
const share::schema::ObPartitionFuncType part_type);
static int choose_best_replica_for_estimation(
const ObCandiTabletLoc &phy_part_loc_info,
const ObAddr &local_addr,
const common::ObIArray<ObAddr> &addrs_list,
const bool no_use_remote,
EstimatedPartition &best_partition);
static int choose_best_partition_replica_addr(const ObAddr &local_addr,
const ObCandiTabletLoc &phy_part_loc_info,
const bool is_est_block_count,
ObAddr &selected_addr);
static int has_global_index(share::schema::ObSchemaGetterGuard *schema_guard,
const uint64_t table_id,
bool &exists);
static int wrap_column_convert_ctx(const common::ObExprCtx &expr_ctx, common::ObCastCtx &column_conv_ctx);
static void init_type_ctx(const ObSQLSessionInfo *session, ObExprTypeCtx &type_ctx);
static bool is_oracle_sys_view(const ObString &table_name);
static int make_whole_range(ObIAllocator &allocator,
const uint64_t ref_table_id,
const int64_t rowkey_count,
ObNewRange *&whole_range);
static int make_whole_range(ObIAllocator &allocator,
const uint64_t ref_table_id,
const int64_t rowkey_count,
ObNewRange &whole_range);
static int get_ext_obj_data_type(const ObObjParam &obj, ObDataType &data_type);
static int ConvertFiledNameAttribute(common::ObIAllocator& allocator,
const common::ObString &src,
common::ObString &dst,
const uint16_t collation_type);
static int clear_evaluated_flag(const ObExprPtrIArray &calc_exprs, ObEvalCtx &eval_ctx);
static int copy_and_convert_string_charset(common::ObIAllocator& allocator,
const common::ObString &src,
common::ObString &dst,
common::ObCollationType src_coll,
common::ObCollationType dst_coll);
static int update_session_last_schema_version(
share::schema::ObMultiVersionSchemaService &schema_service,
ObSQLSessionInfo &session_info
);
static int generate_new_name_with_escape_character(
common::ObIAllocator &allocator,
const common::ObString &src,
common::ObString &dest,
bool is_oracle_mode);
static int check_table_version(bool &equal,
const DependenyTableStore &dependency_tables,
share::schema::ObSchemaGetterGuard &schema_guard);
static int generate_view_definition_for_resolve(common::ObIAllocator &allocator,
common::ObCollationType connection_collation,
const share::schema::ObViewSchema &view_schema,
common::ObString &view_definition);
static void record_execute_time(const ObPhyPlanType type,
const int64_t time_cost);
static int handle_audit_record(bool need_retry,
const ObExecuteMode exec_mode,
ObSQLSessionInfo &session,
bool is_sensitive = false);
// convert escape char from '\\' to '\\\\';
static int convert_escape_char(common::ObIAllocator &allocator,
const ObString &in,
ObString &out);
//检查参数是否为Oracle模式下的''
static bool is_oracle_empty_string(const common::ObObjParam &param);
static int convert_sql_text_from_schema_for_resolve(common::ObIAllocator &allocator,
const common::ObDataTypeCastParams &dtc_params,
ObString &sql_text,
int64_t convert_flag = 0,
int64_t *action_flag = NULL);
static int convert_sql_text_to_schema_for_storing(common::ObIAllocator &allocator,
const common::ObDataTypeCastParams &dtc_params,
ObString &sql_text,
int64_t convert_flag = 0,
int64_t *action_flag = NULL);
static int print_identifier(char *buf, const int64_t buf_len, int64_t &pos,
common::ObCollationType connection_collation,
const common::ObString &identifier_name);
static bool is_one_part_table_can_skip_part_calc(const share::schema::ObTableSchema &schema);
static int create_encode_sortkey_expr(ObRawExprFactory &expr_factory,
ObExecContext* exec_ctx,
const common::ObIArray<OrderItem> &order_keys,
int64_t start_key,
OrderItem &encode_sortkey);
static ObItemType get_sql_item_type(const ParseResult &result);
static bool is_enable_explain_batched_multi_statement();
static bool is_support_batch_exec(ObItemType type);
static bool is_pl_nested_sql(ObExecContext *cur_ctx);
static bool is_fk_nested_sql(ObExecContext *cur_ctx);
static bool is_nested_sql(ObExecContext *cur_ctx);
static bool is_select_from_dual(ObExecContext &ctx);
static bool is_batch_execute(ObSqlCtx &sql_ctx);
static int get_obj_from_ext_obj(const ObObjParam &ext_obj, int64_t pos, ObObj *&obj);
static int get_result_from_ctx(ObExecContext &exec_ctx,
const ObRawExpr *expr,
ObObj &result,
bool &is_valid,
bool &hit_cache);
static int store_result_to_ctx(ObExecContext &exec_ctx,
const ObRawExpr *raw_expr,
const ObObj &result,
bool is_valid);
static int add_calc_failure_constraint(const ObRawExpr *raw_expr,
ObIArray<ObExprConstraint> &constraints);
static int create_multi_stmt_param_store(common::ObIAllocator &allocator,
int64_t query_num,
int64_t param_num,
ParamStore &param_store);
static int transform_pl_ext_type(ParamStore &src, int64_t array_binding_size, ObIAllocator &alloc, ParamStore *&dst, bool is_forall = false);
static int get_one_group_params(int64_t &pos, ParamStore &src, ParamStore &obj_params);
static int copy_params_to_array_params(int64_t query_pos, ParamStore &src, ParamStore &dst, ObIAllocator &alloc, bool is_forall = false);
static int init_elements_info(ParamStore &src, ParamStore &dst);
/*-----------------------
* Observer no longer depends on Linux NTP service to adjust server time since 4.0.
* So, timestamp between servers can be vary large.
* A sql executed across servers needs to be corrected
* according to the THIS_WORKER.get_ntp_offset(),
* That is the time correctly set by the processor of the RPC
------------------------*/
static void adjust_time_by_ntp_offset(int64_t &dst_timeout_ts);
static int split_remote_object_storage_url(common::ObString &url, share::ObBackupStorageInfo &storage_info);
static bool is_external_files_on_local_disk(const common::ObString &url);
static int check_location_access_priv(const common::ObString &location, ObSQLSessionInfo *session);
static int async_recompile_view(const share::schema::ObTableSchema &old_view_schema,
ObSelectStmt *select_stmt,
bool reset_column_infos,
common::ObIAllocator &alloc,
sql::ObSQLSessionInfo &session_info);
static int find_synonym_ref_obj(const ObString &database_name,
const ObString &object_name,
const uint64_t tenant_id,
bool &exist,
uint64_t &object_id,
share::schema::ObObjectType &obj_type,
uint64_t &schema_version);
static int find_synonym_ref_obj(const uint64_t database_id,
const ObString &object_name,
const uint64_t tenant_id,
bool &exist,
uint64_t &object_id,
share::schema::ObObjectType &obj_type,
uint64_t &schema_version);
static bool check_need_disconnect_parser_err(const int ret_code);
private:
static int check_ident_name(const common::ObCollationType cs_type, common::ObString &name,
const bool check_for_path_char, const int64_t max_ident_len);
static bool check_mysql50_prefix(common::ObString &db_name);
struct SessionInfoCtx
{
common::ObCollationType collation_type_;
common::ObTimeZoneInfo tz_info_;
};
}; // end of ObSQLUtils
class ObSqlGeoUtils
{
public:
static int check_srid_by_srs(uint64_t tenant_id, uint64_t srid);
static int check_srid(uint32_t column_srid, uint32_t input_srid);
};
class RelExprCheckerBase
{
public:
RelExprCheckerBase()
: duplicated_checker_()
{
}
virtual ~RelExprCheckerBase()
{
duplicated_checker_.destroy();
}
virtual int init(int64_t bucket_num = CHECKER_BUCKET_NUM);
virtual int add_expr(ObRawExpr *&expr) = 0;
int add_exprs(common::ObIArray<ObRawExpr*> &exprs);
protected:
static const int64_t CHECKER_BUCKET_NUM = 1000;
common::hash::ObHashSet<uint64_t, common::hash::NoPthreadDefendMode> duplicated_checker_;
};
class RelExprChecker : public RelExprCheckerBase
{
public:
RelExprChecker(common::ObIArray<ObRawExpr*> &rel_array)
: RelExprCheckerBase(), rel_array_(rel_array)
{
}
virtual ~RelExprChecker() {}
int add_expr(ObRawExpr *&expr);
private:
common::ObIArray<ObRawExpr*> &rel_array_;
};
class FastRelExprChecker : public RelExprCheckerBase
{
public:
FastRelExprChecker(common::ObIArray<ObRawExpr *> &rel_array);
virtual ~FastRelExprChecker();
int add_expr(ObRawExpr *&expr);
int dedup();
private:
common::ObIArray<ObRawExpr *> &rel_array_;
int64_t init_size_;
};
class RelExprPointerChecker : public RelExprCheckerBase
{
public:
RelExprPointerChecker(common::ObIArray<ObRawExprPointer> &rel_array)
: RelExprCheckerBase(), rel_array_(rel_array), expr_id_map_()
{
}
virtual ~RelExprPointerChecker() {}
virtual int init(int64_t bucket_num = CHECKER_BUCKET_NUM) override;
int add_expr(ObRawExpr *&expr);
private:
common::ObIArray<ObRawExprPointer> &rel_array_;
common::hash::ObHashMap<uint64_t, uint64_t, common::hash::NoPthreadDefendMode> expr_id_map_;
};
class AllExprPointerCollector : public RelExprCheckerBase
{
public:
AllExprPointerCollector(common::ObIArray<ObRawExpr**> &rel_array)
: RelExprCheckerBase(), rel_array_(rel_array)
{
}
virtual ~AllExprPointerCollector() {}
int add_expr(ObRawExpr *&expr);
private:
common::ObIArray<ObRawExpr**> &rel_array_;
};
class FastUdtExprChecker : public RelExprCheckerBase
{
public:
FastUdtExprChecker(common::ObIArray<ObRawExpr *> &rel_array);
virtual ~FastUdtExprChecker() {}
int add_expr(ObRawExpr *&expr);
int dedup();
private:
common::ObIArray<ObRawExpr *> &rel_array_;
int64_t init_size_;
};
struct ObSqlTraits
{
char sql_id_[common::OB_MAX_SQL_ID_LENGTH + 1];// sql id //最后一个字节存放'\0'
bool is_readonly_stmt_;
bool is_modify_tenant_stmt_;
bool is_cause_implicit_commit_;
bool is_commit_stmt_;
ObItemType stmt_type_;
ObSqlTraits() : is_readonly_stmt_(false),
is_modify_tenant_stmt_(false),
is_cause_implicit_commit_(false),
is_commit_stmt_(false),
stmt_type_(T_INVALID)
{
sql_id_[common::OB_MAX_SQL_ID_LENGTH] = '\0';
}
void reset() {
sql_id_[common::OB_MAX_SQL_ID_LENGTH] = '\0';
is_readonly_stmt_ = false;
is_modify_tenant_stmt_ = false;
is_cause_implicit_commit_ = false;
is_commit_stmt_ = false;
stmt_type_ = T_INVALID;
}
TO_STRING_KV(K(is_readonly_stmt_),
K(is_modify_tenant_stmt_),
K(is_cause_implicit_commit_),
K(is_commit_stmt_),
K(stmt_type_));
};
template<typename ValueType>
class ObValueChecker
{
public:
ObValueChecker() = delete;
constexpr ObValueChecker(ValueType min_value, ValueType max_value, int err_ret_code)
: min_value_(min_value), max_value_(max_value), err_ret_code_(err_ret_code)
{}
constexpr inline int validate(const ValueType &value) const {
return (value < min_value_ || value > max_value_) ? err_ret_code_ : common::OB_SUCCESS;
}
constexpr inline int validate_str_length(const common::ObString &value) const {
return (value.length() < min_value_ || value.length() > max_value_) ? err_ret_code_ : common::OB_SUCCESS;
}
TO_STRING_KV(K_(min_value), K_(max_value), K_(err_ret_code));
private:
ValueType min_value_;
ValueType max_value_;
int err_ret_code_;
};
template<typename ValueType>
class ObPointerChecker
{
public:
ObPointerChecker() = delete;
constexpr ObPointerChecker(int err_ret_code)
: err_ret_code_(err_ret_code)
{}
constexpr inline int validate(const ValueType *value) const {
return (nullptr == value) ? err_ret_code_ : common::OB_SUCCESS;
}
TO_STRING_KV(K_(err_ret_code));
private:
int err_ret_code_;
};
//用uint64_t存储的flag集合，最多有63个flag
//T是enum类型
// enum class A {
// F1,
// F2,
// F3,
// MAX_VALUE,
// };
// ObEnumBitSet<A> flag_set;
//
template <typename T>
class ObEnumBitSet {
static const int MAX_ENUM_VALUE = 64;
static_assert(std::is_enum<T>::value, "typename must be a enum type");
static_assert(static_cast<int>(T::MAX_VALUE) < MAX_ENUM_VALUE,
"Please add MAX_VALUE in enum class");
public:
inline ObEnumBitSet() : flag_(0) {}
inline ObEnumBitSet(T value) { set_bit(value); }
inline void reset() { flag_ = 0; }
inline void set_bit(T bit_pos) {
flag_ |= bit2flag(static_cast<int>(bit_pos));
}
inline bool test_bit(T bit_pos) const {
return !!((flag_) & bit2flag(static_cast<int>(bit_pos)));
}
inline bool contain(const ObEnumBitSet &other) const {
return (this & other) == other;
}
ObEnumBitSet<T>& operator |= (ObEnumBitSet<T> other)
{
this->flag_ |= other.flag_;
return *this;
}
ObEnumBitSet<T>& operator &= (ObEnumBitSet<T> other)
{
this->flag_ &= other.flag_;
return *this;
}
ObEnumBitSet<T> operator | (ObEnumBitSet<T> other) const
{
return ObEnumBitSet<T>(this->flag_ | other.flag_);
}
ObEnumBitSet<T> operator & (ObEnumBitSet<T> other) const
{
return ObEnumBitSet<T>(this->flag_ & other.flag_);
}
TO_STRING_KV(K_(flag));
private:
inline uint64_t bit2flag(int bit) const {
uint64_t v = 1;
return v<<bit;
}
uint64_t flag_;
OB_UNIS_VERSION(1);
};
OB_SERIALIZE_MEMBER_TEMP(template<typename T>, ObEnumBitSet<T>, flag_);
//隐式游标信息
struct ObImplicitCursorInfo
{
OB_UNIS_VERSION(1);
public:
ObImplicitCursorInfo()
: stmt_id_(common::OB_INVALID_INDEX),
affected_rows_(0),
found_rows_(0),
matched_rows_(0),
duplicated_rows_(0),
deleted_rows_(0) {}
int merge_cursor(const ObImplicitCursorInfo &other);
TO_STRING_KV(K_(stmt_id),
K_(affected_rows),
K_(found_rows),
K_(matched_rows),
K_(duplicated_rows),
K_(deleted_rows));
int64_t stmt_id_;
int64_t affected_rows_;
int64_t found_rows_;
int64_t matched_rows_;
int64_t duplicated_rows_;
int64_t deleted_rows_;
};
enum ObThreeStageAggrStage {
NONE_STAGE,
FIRST_STAGE,
SECOND_STAGE,
THIRD_STAGE,
};
enum ObRollupStatus {
NONE_ROLLUP, // no rollup
ROLLUP_NORMAL, // normal rollup
ROLLUP_DISTRIBUTOR, // rollup distributor
ROLLUP_COLLECTOR, // rollup collector
};
class ObVirtualTableResultConverter
{
public:
ObVirtualTableResultConverter()
: key_alloc_(nullptr), key_cast_ctx_(), output_row_types_(nullptr), key_types_(nullptr),
output_row_alloc_(), init_alloc_(nullptr), inited_row_(false), convert_row_(), output_row_cast_ctx_(),
base_table_id_(UINT64_MAX), cur_tenant_id_(UINT64_MAX), table_schema_(nullptr), output_column_ids_(nullptr),
cols_schema_(), tenant_id_col_id_(UINT64_MAX), max_col_cnt_(INT64_MAX),
has_tenant_id_col_(false), tenant_id_col_idx_(-1)
{}
~ObVirtualTableResultConverter() { destroy(); }
void destroy();
int reset_and_init(
ObIAllocator *key_alloc,
sql::ObSQLSessionInfo *session,
const common::ObIArray<ObObjMeta> *output_row_types,
const common::ObIArray<ObObjMeta> *key_types,
ObIAllocator *init_alloc,
const share::schema::ObTableSchema *table_schema,
const common::ObIArray<uint64_t> *output_column_ids,
const bool has_tenant_id_col,
const int64_t tenant_id_col_idx,
const int64_t max_col_cnt = INT64_MAX);
int init_without_allocator(
const common::ObIArray<const share::schema::ObColumnSchemaV2*> &col_schemas,
uint64_t cur_tenant_id,
uint64_t tenant_id_col_id);
int convert_key_ranges(ObIArray<ObNewRange> &key_ranges);
int convert_output_row(ObNewRow *&src_row);
int convert_output_row(ObEvalCtx &eval_ctx,
const common::ObIArray<ObExpr*> &src_exprs,
const common::ObIArray<ObExpr*> &dst_exprs);
int convert_column(ObObj &obj, uint64_t column_id, uint64_t idx);
//attention!!!, following function is inited to convert range only, can't do other operator.
int init_convert_key_ranges_info(
ObIAllocator *key_alloc,
sql::ObSQLSessionInfo *session,
const share::schema::ObTableSchema *table_schema,
const common::ObIArray<ObObjMeta> *key_types,
const bool has_tenant_id_col,
const int64_t tenant_id_col_idx);
private:
int convert_key(const ObRowkey &src, ObRowkey &dst, bool is_start_key, int64_t pos);
int get_all_columns_schema();
int init_output_row(int64_t cell_cnt);
int get_need_convert_key_ranges_pos(ObNewRange &key_range, int64_t &pos);
public:
// the memory that allocated must be reset by caller
ObIAllocator *key_alloc_;
ObCastCtx key_cast_ctx_;
const common::ObIArray<ObObjMeta> *output_row_types_;
const common::ObIArray<ObObjMeta> *key_types_;
// every row must be reset
common::ObArenaAllocator output_row_alloc_;
// for init output row, lifecycle is from open to close(called destroy)
common::ObIAllocator *init_alloc_;
bool inited_row_;
common::ObNewRow convert_row_;
ObCastCtx output_row_cast_ctx_;
uint64_t base_table_id_;
uint64_t cur_tenant_id_;
const share::schema::ObTableSchema *table_schema_;
const common::ObIArray<uint64_t> *output_column_ids_;
common::ObArray<const share::schema::ObColumnSchemaV2 *> cols_schema_;
uint64_t tenant_id_col_id_;
int64_t max_col_cnt_;
common::ObTimeZoneInfoWrap tz_info_wrap_;
bool has_tenant_id_col_;
int64_t tenant_id_col_idx_;
};
class ObSqlFatalErrExtraInfoGuard : public common::ObFatalErrExtraInfoGuard
{
public:
ObSqlFatalErrExtraInfoGuard() { reset(); }
~ObSqlFatalErrExtraInfoGuard() {};
void reset() {
tenant_id_ = OB_INVALID_TENANT_ID;
cur_sql_.reset();
plan_ = nullptr;
exec_ctx_ = nullptr;
}
void set_tenant_id(uint64_t tenant_id) { tenant_id_ = tenant_id;}
void set_cur_sql(const common::ObString &cur_sql) { cur_sql_ = cur_sql; }
void set_cur_plan(const ObPhysicalPlan *plan) { plan_ = plan; }
void set_exec_context(ObExecContext *exec_ctx) { exec_ctx_ = exec_ctx; }
DECLARE_TO_STRING;
private:
uint64_t tenant_id_;
common::ObString cur_sql_;
const ObPhysicalPlan *plan_;
ObExecContext *exec_ctx_;
};
enum PreCalcExprExpectResult {
PRE_CALC_RESULT_NONE, // not init
PRE_CALC_RESULT_NULL,
PRE_CALC_RESULT_NOT_NULL,
PRE_CALC_RESULT_TRUE,
PRE_CALC_RESULT_FALSE,
PRE_CALC_RESULT_NO_WILDCARD,
PRE_CALC_ERROR,
PRE_CALC_PRECISE,
PRE_CALC_NOT_PRECISE,
PRE_CALC_ROWID
};
struct ObExprConstraint
{
ObExprConstraint() :
pre_calc_expr_(NULL),
expect_result_(PRE_CALC_RESULT_NONE) {}
ObExprConstraint(ObRawExpr *expr, PreCalcExprExpectResult expect_result) :
pre_calc_expr_(expr),
expect_result_(expect_result) {}
bool operator==(const ObExprConstraint &rhs) const;
ObRawExpr *pre_calc_expr_;
PreCalcExprExpectResult expect_result_;
TO_STRING_KV(KP_(pre_calc_expr),
K_(expect_result));
};
struct ObPreCalcExprConstraint : public common::ObDLinkBase<ObPreCalcExprConstraint>
{
public:
ObPreCalcExprConstraint(common::ObIAllocator &allocator):
pre_calc_expr_info_(allocator),
expect_result_(PRE_CALC_RESULT_NONE)
{
}
virtual int assign(const ObPreCalcExprConstraint &other, common::ObIAllocator &allocator);
virtual int check_is_match(const ObObjParam &obj_param, bool &is_match) const;
ObPreCalcExprFrameInfo pre_calc_expr_info_;
PreCalcExprExpectResult expect_result_;
};
struct ObRowidConstraint : public ObPreCalcExprConstraint
{
public:
ObRowidConstraint(common::ObIAllocator &allocator):
ObPreCalcExprConstraint(allocator),
rowid_version_(0),
rowid_type_array_(allocator)
{
}
virtual int assign(const ObPreCalcExprConstraint &other,
common::ObIAllocator &allocator) override;
virtual int check_is_match(const ObObjParam &obj_param, bool &is_match) const override;
uint8_t rowid_version_;
ObFixedArray<ObObjType, common::ObIAllocator> rowid_type_array_;
};
//this guard use to link the exec context and session
class LinkExecCtxGuard
{
public:
LinkExecCtxGuard(ObSQLSessionInfo &session, ObExecContext &exec_ctx)
: session_(session),
exec_ctx_(exec_ctx),
is_linked_(false),
is_autocommit_(false)
{
link_current_context();
}
~LinkExecCtxGuard()
{
unlink_current_context();
}
private:
//bind current execute context with my session,
//in order to access exec_ctx of the current statement through session
void link_current_context();
//unlink current execute context with my session to
//forbid accessing this sql exec context through session
//usually at the end of the sql execution
void unlink_current_context();
private:
ObSQLSessionInfo &session_;
ObExecContext &exec_ctx_;
bool is_linked_;
bool is_autocommit_;
};
}
}
#endif
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