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79131c0cda4321081cfa78b8815d40ccdb4a52aa
oceanbase/src/sql/resolver/dml/ob_delete_resolver.cpp
raywill 79131c0cda [bp2] batch patch code from 31x to opensource
2021-07-29 22:02:41 +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/dml/ob_delete_resolver.h"
#include "sql/session/ob_sql_session_info.h"
#include "sql/resolver/ob_resolver_utils.h"
/**
* DELETE syntax from MySQL 5.7
*
* Single-Table Syntax:
* DELETE [LOW_PRIORITY] [QUICK] [IGNORE] FROM tbl_name
* [PARTITION (partition_name,...)]
* [WHERE where_condition]
* [ORDER BY ...]
* [LIMIT row_count]
*
* Multiple-Table Syntax
* DELETE [LOW_PRIORITY] [QUICK] [IGNORE]
* tbl_name[.*] [, tbl_name[.*]] ...
* FROM table_references
* [WHERE where_condition]
* Or:
* DELETE [LOW_PRIORITY] [QUICK] [IGNORE]
* FROM tbl_name[.*] [, tbl_name[.*]] ...
* USING table_references
* [WHERE where_condition]
*/
namespace oceanbase {
using namespace common;
using namespace share;
using namespace share::schema;
namespace sql {
ObDeleteResolver::ObDeleteResolver(ObResolverParams& params) : ObDMLResolver(params)
{
params.contain_dml_ = true;
}
ObDeleteResolver::~ObDeleteResolver()
{}
int ObDeleteResolver::resolve(const ParseNode& parse_tree)
{
int ret = OB_SUCCESS;
ParseNode* table_node = parse_tree.children_[TABLE];
// create the delete stmt
ObDeleteStmt* delete_stmt = NULL;
bool is_multi_table_delete = false;
if (NULL == (delete_stmt = create_stmt<ObDeleteStmt>())) {
ret = OB_ALLOCATE_MEMORY_FAILED;
LOG_ERROR("create delete stmt failed");
} else if (OB_UNLIKELY(parse_tree.type_ != T_DELETE) || OB_UNLIKELY(parse_tree.num_child_ < 2)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("parse tree type is invalid", K_(parse_tree.type), K_(parse_tree.num_child));
} else if (OB_ISNULL(table_node)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("table_node is null");
} else {
stmt_ = delete_stmt;
if (OB_FAIL(resolve_table_list(*table_node, is_multi_table_delete))) {
LOG_WARN("resolve table failed", K(ret));
}
}
for (int64_t i = 0; OB_SUCC(ret) && i < delete_tables_.count(); ++i) {
const TableItem* table_item = delete_tables_.at(i);
CK(OB_NOT_NULL(table_item));
OZ(add_related_columns_to_stmt(*table_item));
OZ(resolve_global_delete_index_info(*table_item));
}
if (OB_SUCC(ret)) {
if (OB_FAIL(resolve_where_clause(parse_tree.children_[WHERE]))) {
LOG_WARN("resolve delete where clause failed", K(ret));
} else if (OB_FAIL(resolve_order_clause(parse_tree.children_[ORDER_BY]))) {
LOG_WARN("resolve delete order clause failed", K(ret));
} else if (OB_FAIL(resolve_limit_clause(parse_tree.children_[LIMIT]))) {
LOG_WARN("resolve delete limit clause failed", K(ret));
} else if (OB_FAIL(resolve_hints(parse_tree.children_[HINT]))) {
LOG_WARN("resolve hints failed", K(ret));
} else if (OB_FAIL(resolve_returning(parse_tree.children_[RETURNING]))) {
LOG_WARN("resolve returning failed", K(ret));
} else if (OB_FAIL(delete_stmt->formalize_stmt(session_info_))) {
LOG_WARN("pull stmt all expr relation ids failed", K(ret));
} else if (is_oracle_mode() && OB_FAIL(resolve_check_constraints(delete_stmt->get_table_item(0)))) {
LOG_WARN("resolve check constraint failed", K(ret));
}
}
for (int i = 0; OB_SUCC(ret) && i < delete_tables_.count(); i++) {
const TableItem* table_item = delete_tables_.at(i);
if (OB_FAIL(try_add_rowid_column_to_stmt(*table_item))) {
LOG_WARN("failed to try adding rowid column", K(ret));
}
} // for end
if (OB_SUCC(ret)) {
TableItem* delete_table = NULL;
if (OB_FAIL(view_pullup_part_exprs())) {
LOG_WARN("view pull up part exprs failed", K(ret));
} else if (OB_FAIL(check_view_deletable())) {
LOG_TRACE("view not deletable", K(ret));
} else if (delete_stmt->get_from_item_size() == 1 &&
NULL != (delete_table = delete_stmt->get_table_item(delete_stmt->get_from_item(0))) &&
delete_table->is_basic_table()) {
// do nothing
} else {
delete_stmt->set_dml_source_from_join(true);
}
}
if (OB_SUCC(ret)) {
if (OB_FAIL(delete_stmt->check_dml_need_filter_null())) {
LOG_WARN("failed to check dml need filter null", K(ret));
} else if (OB_FAIL(check_safe_update_mode(delete_stmt, is_multi_table_delete))) {
LOG_WARN("failed to check safe update mode", K(ret));
} else {
/*do nothing */
}
}
return ret;
}
int ObDeleteResolver::check_safe_update_mode(ObDeleteStmt* delete_stmt, bool is_multi_table_delete)
{
int ret = OB_SUCCESS;
bool is_sql_safe_updates = false;
if (OB_ISNULL(params_.session_info_) || OB_ISNULL(delete_stmt)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get unexpected", K(ret), K(params_.session_info_), K(delete_stmt));
} else if (OB_FAIL(params_.session_info_->get_sql_safe_updates(is_sql_safe_updates))) {
LOG_WARN("failed to get is safe update mode", K(ret));
} else if (is_sql_safe_updates) {
/* Update table values in mysql safe mode, you need to meet:
* Prerequisite: Single table deletion, not multi-table deletion, must contain where conditions;
* At least one of the following conditions must be met:
* 1. Contains limit, there are related columns in the where condition;
* 2. The query range can be extracted in the where condition ==> Since the query range can only be extracted in the
* optimizer stage, the condition is Check at the optimizer stage
*/
if (is_multi_table_delete || delete_stmt->get_condition_exprs().empty()) {
ret = OB_ERR_SAFE_UPDATE_MODE_NEED_WHERE_OR_LIMIT;
LOG_WARN("using safe update mode need WHERE or LIMIT", K(ret));
} else if (delete_stmt->has_limit()) {
bool is_const_expr = true;
for (int64_t i = 0; OB_SUCC(ret) && is_const_expr && i < delete_stmt->get_condition_exprs().count(); ++i) {
const ObRawExpr* expr = delete_stmt->get_condition_expr(i);
if (OB_ISNULL(expr)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get unexpected null", K(expr));
} else {
is_const_expr = expr->has_const_or_const_expr_flag();
}
}
if (OB_SUCC(ret) && is_const_expr) {
ret = OB_ERR_SAFE_UPDATE_MODE_NEED_WHERE_OR_LIMIT;
LOG_WARN("using safe update mode need WHERE or LIMIT", K(ret));
}
}
} else { /*do nothing*/
}
return ret;
}
int ObDeleteResolver::resolve_table_list(const ParseNode& table_list, bool& is_multi_table_delete)
{
int ret = OB_SUCCESS;
TableItem* table_item = NULL;
is_multi_table_delete = false;
const ParseNode* delete_list = NULL;
const ParseNode* from_list = NULL;
ObDeleteStmt* delete_stmt = get_delete_stmt();
CK(T_DELETE_TABLE_NODE == table_list.type_);
CK(2 == table_list.num_child_);
CK(OB_NOT_NULL(delete_stmt));
if (OB_SUCC(ret)) {
delete_list = table_list.children_[0];
from_list = table_list.children_[1];
}
CK(OB_NOT_NULL(from_list));
CK(T_TABLE_REFERENCES == from_list->type_);
CK(OB_NOT_NULL(from_list->children_));
for (int64_t i = 0; OB_SUCC(ret) && i < from_list->num_child_; ++i) {
const ParseNode* table_node = from_list->children_[i];
CK(OB_NOT_NULL(table_node));
if (OB_SUCC(ret)) {
if (OB_FAIL(ObDMLResolver::resolve_table(*table_node, table_item))) {
LOG_WARN("failed to resolve table", K(ret));
} else if (table_item->is_function_table()) {
ret = OB_WRONG_TABLE_NAME;
LOG_WARN("invalid table name", K(ret));
} else if (OB_FAIL(column_namespace_checker_.add_reference_table(table_item))) {
LOG_WARN("add reference table to namespace checker failed", K(ret));
} else if (OB_FAIL(delete_stmt->add_from_item(table_item->table_id_, table_item->is_joined_table()))) {
LOG_WARN("failed to add from item", K(ret));
} else {
/*
In order to share the same logic with 'select' to generate access path costly, we
add the table in the udpate stmt in the from_item list as well.
*/
LOG_DEBUG("succ to add from item", KPC(table_item));
}
}
}
if (OB_SUCC(ret)) {
if (NULL == delete_list) {
// single table delete, delete list is same with from list
CK(delete_stmt->get_table_size() == 1);
OZ(delete_tables_.push_back(delete_stmt->get_table_item(0)));
} else {
// multi table delete
is_multi_table_delete = true;
ObString table_name;
ObString db_name;
CK(T_TABLE_REFERENCES == delete_list->type_);
for (int64_t i = 0; OB_SUCC(ret) && i < delete_list->num_child_; ++i) {
table_name.reset();
db_name.reset();
table_item = NULL;
const ParseNode* table_node = delete_list->children_[i];
OZ(resolve_table_relation_node(table_node, table_name, db_name, true));
OZ(find_delete_table_with_mysql_rule(db_name, table_name, table_item));
OZ(delete_tables_.push_back(table_item));
}
}
}
if (OB_SUCC(ret)) {
FOREACH_CNT_X(table_item, delete_tables_, OB_SUCC(ret))
{
if (NULL != *table_item && (*table_item)->is_generated_table()) {
if (OB_FAIL(set_base_table_for_view(*const_cast<TableItem*>(*table_item)))) {
LOG_WARN("set base table for delete view failed", K(ret));
} else if (OB_FAIL(add_all_column_to_updatable_view(*delete_stmt, **table_item))) {
LOG_WARN("add all column to updatable view failed", K(ret));
}
}
}
}
return ret;
}
int ObDeleteResolver::find_delete_table_with_mysql_rule(
const ObString& db_name, const ObString& table_name, TableItem*& table_item)
{
int ret = OB_SUCCESS;
ObDMLStmt* stmt = get_stmt();
CK(OB_NOT_NULL(stmt));
CK(OB_NOT_NULL(session_info_));
ObString final_db_name;
table_item = NULL;
ObSEArray<const TableItem*, 2> table_items;
OZ(stmt->get_all_table_item_by_tname(session_info_, db_name, table_name, table_items));
if (OB_SUCC(ret)) {
if (table_items.count() == 1) {
table_item = const_cast<TableItem*>(table_items.at(0));
} else if (db_name.empty()) {
// If there are multiple table_items in table_items, it means that the delete clause does not specify the
// database_name of the table And all tables in the from clause are base tables, such as delete t1.* from db1.t1,
// db2.t1; In this case, we think that the database_name in the delete clause is consistent with the session
ObString final_db_name = session_info_->get_database_name();
if (final_db_name.empty()) {
ret = OB_ERR_NO_DB_SELECTED;
LOG_WARN("no database selected");
}
for (int64_t i = 0; OB_SUCC(ret) && OB_ISNULL(table_item) && i < table_items.count(); ++i) {
if (ObCharset::case_insensitive_equal(final_db_name, table_items.at(i)->database_name_) &&
ObCharset::case_insensitive_equal(table_name, table_items.at(i)->table_name_)) {
table_item = const_cast<TableItem*>(table_items.at(i));
}
}
}
}
if (OB_SUCC(ret)) {
if (OB_ISNULL(table_item)) {
ret = OB_ERR_UNKNOWN_TABLE;
ObString print_table_name = concat_table_name(db_name, table_name);
ObString scope_name = ObString::make_string("MULTI DELETE");
LOG_USER_ERROR(OB_ERR_UNKNOWN_TABLE,
print_table_name.length(),
print_table_name.ptr(),
scope_name.length(),
scope_name.ptr());
} else if (!table_item->is_basic_table() && !table_item->is_generated_table()) {
ret = OB_ERR_NON_UPDATABLE_TABLE;
ObString print_table_name = concat_table_name(db_name, table_name);
ObString scope_name = ObString::make_string("DELETE");
LOG_USER_ERROR(OB_ERR_NON_UPDATABLE_TABLE,
print_table_name.length(),
print_table_name.ptr(),
scope_name.length(),
scope_name.ptr());
}
}
return ret;
}
int ObDeleteResolver::add_related_columns_to_stmt(const TableItem& table_item)
{
int ret = OB_SUCCESS;
ObDeleteStmt* delete_stmt = get_delete_stmt();
if (NULL == schema_checker_ || NULL == delete_stmt) {
ret = OB_ERR_UNEXPECTED;
SQL_RESV_LOG(WARN, "schema_checker_ or delete_stmt is null");
}
const ObTableSchema* table_schema = NULL;
// Firstly, add primary index(data table) rowkey columns
IndexDMLInfo* primary_dml_info = NULL;
if (OB_SUCC(ret)) {
if (NULL == (primary_dml_info = delete_stmt->get_or_add_table_columns(table_item.table_id_))) {
ret = OB_ALLOCATE_MEMORY_FAILED;
LOG_WARN("failed to get table columns", K(table_item));
} else if (OB_FAIL(add_all_rowkey_columns_to_stmt(table_item, primary_dml_info->column_exprs_))) {
LOG_WARN("add all rowkey columns to stmt failed", K(ret));
}
}
if (OB_SUCC(ret)) {
int64_t binlog_row_image = ObBinlogRowImage::FULL;
if (OB_FAIL(params_.session_info_->get_binlog_row_image(binlog_row_image))) {
LOG_WARN("fail to get binlog row image", K(ret));
} else if (OB_FAIL(schema_checker_->get_table_schema(table_item.get_base_table_item().ref_id_, table_schema))) {
SQL_RESV_LOG(WARN, "fail to get table schema", K(ret), K(table_item));
} else if (OB_ISNULL(table_schema)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("table_schema is null", K(ret), K(table_item.get_base_table_item().ref_id_));
} else if (need_all_columns(*table_schema, binlog_row_image)) {
if (OB_FAIL(add_all_columns_to_stmt(table_item, primary_dml_info->column_exprs_))) {
LOG_WARN("fail to add all column to stmt", K(ret), K(table_item));
}
} else if (OB_FAIL(add_index_related_column_to_stmt(table_item, primary_dml_info->column_exprs_))) {
LOG_WARN("fail to add relate column to stmt", K(ret), K(table_item));
}
if (OB_SUCC(ret)) {
primary_dml_info->table_id_ = table_item.table_id_;
primary_dml_info->loc_table_id_ = table_item.get_base_table_item().table_id_;
primary_dml_info->index_tid_ = table_item.get_base_table_item().ref_id_;
primary_dml_info->rowkey_cnt_ = table_schema->get_rowkey_column_num();
primary_dml_info->part_cnt_ = table_schema->get_partition_cnt();
primary_dml_info->index_name_ = table_schema->get_table_name_str();
}
}
return ret;
}
int ObDeleteResolver::add_index_related_column_to_stmt(
const TableItem& table_item, ObIArray<ObColumnRefRawExpr*>& column_exprs)
{
int ret = OB_SUCCESS;
const ObTableSchema* index_schema = NULL;
uint64_t idx_tids[OB_MAX_INDEX_PER_TABLE];
int64_t idx_count = OB_MAX_INDEX_PER_TABLE;
ObDeleteStmt* delete_stmt = get_delete_stmt();
CK(OB_NOT_NULL(schema_checker_));
CK(OB_NOT_NULL(delete_stmt));
if (OB_SUCC(ret)) {
if (OB_FAIL(schema_checker_->get_can_write_index_array(
table_item.get_base_table_item().ref_id_, idx_tids, idx_count))) {
SQL_RESV_LOG(WARN, "get can write index array failed", K(ret));
}
}
// Secondly, for each index, all all its rowkey
ObArray<ObColumnRefRawExpr*> column_items;
for (int64_t i = 0; OB_SUCC(ret) && i < idx_count; ++i) {
column_items.reset();
if (OB_FAIL(schema_checker_->get_table_schema(idx_tids[i], index_schema))) {
SQL_RESV_LOG(WARN, "get index schema failed", "index_id", idx_tids[i]);
} else if (OB_FAIL(add_all_index_rowkey_to_stmt(table_item, index_schema, column_exprs))) {
LOG_WARN("add all index rowkey column to stmt failed", K(ret));
}
}
return ret;
}
int ObDeleteResolver::resolve_global_delete_index_info(const TableItem& table_item)
{
int ret = OB_SUCCESS;
int64_t binlog_row_image = 0;
IndexDMLInfo index_dml_info;
ObAssignments empty_assignments;
ObDeleteStmt* delete_stmt = get_delete_stmt();
uint64_t index_tid[OB_MAX_INDEX_PER_TABLE];
int64_t index_cnt = OB_MAX_INDEX_PER_TABLE;
CK(OB_NOT_NULL(delete_stmt));
CK(OB_NOT_NULL(params_.session_info_));
OC((params_.session_info_->get_binlog_row_image)(binlog_row_image));
OC((schema_checker_->get_can_write_index_array)(
table_item.get_base_table_item().ref_id_, index_tid, index_cnt, true));
if (OB_SUCC(ret)) {
delete_stmt->set_has_global_index(index_cnt > 0);
}
for (int64_t i = 0; OB_SUCC(ret) && i < index_cnt; ++i) {
index_dml_info.reset();
const ObTableSchema* index_schema = NULL;
if (OB_FAIL(schema_checker_->get_table_schema(index_tid[i], index_schema))) {
LOG_WARN("get index table schema failed", K(ret), K(index_tid[i]));
} else if (OB_ISNULL(index_schema)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("index schema is null");
} else if (OB_FAIL(resolve_index_related_column_exprs(
table_item.table_id_, *index_schema, empty_assignments, index_dml_info.column_exprs_))) {
LOG_WARN("resolve index related column exprs failed", K(ret));
} else {
index_dml_info.table_id_ = table_item.table_id_;
index_dml_info.loc_table_id_ = table_item.get_base_table_item().table_id_;
index_dml_info.index_tid_ = index_tid[i];
index_dml_info.rowkey_cnt_ = index_schema->get_rowkey_column_num();
index_dml_info.part_cnt_ = index_schema->get_partition_cnt();
index_dml_info.index_type_ = index_schema->get_index_type();
if (OB_FAIL(index_schema->get_index_name(index_dml_info.index_name_))) {
LOG_WARN("get index name from index schema failed", K(ret));
} else if (OB_FAIL(delete_stmt->add_multi_table_dml_info(index_dml_info))) {
LOG_WARN("add index dml info to update stmt failed", K(ret));
}
}
if (OB_SUCC(ret) && !with_clause_without_record_) {
ObSchemaObjVersion table_version;
table_version.object_id_ = index_schema->get_table_id();
table_version.object_type_ = DEPENDENCY_TABLE;
table_version.version_ = index_schema->get_schema_version();
if (OB_FAIL(delete_stmt->add_global_dependency_table(table_version))) {
LOG_WARN("add global dependency table failed", K(ret));
}
}
}
return ret;
}
int ObDeleteResolver::check_view_deletable()
{
int ret = OB_SUCCESS;
// uv_check_basic && mysql join already checked in set_base_table_for_view()
FOREACH_CNT_X(it, delete_tables_, OB_SUCC(ret))
{
const TableItem* table = *it;
if (OB_ISNULL(*it)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("NULL table table ", K(ret));
} else if (!table->is_generated_table()) {
continue;
} else if (OB_ISNULL(table->ref_query_)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("ref query is NULL for generate table", K(ret));
}
if (OB_SUCC(ret) && is_mysql_mode()) {
if (OB_SUCC(ret)) {
bool has_subquery = false;
bool has_dependent_subquery = false;
bool ref_update_table = false;
if (OB_FAIL(ObResolverUtils::uv_check_select_item_subquery(
*table, has_subquery, has_dependent_subquery, ref_update_table))) {
LOG_WARN("updatable view check select table failed", K(ret));
} else {
LOG_DEBUG("update view check", K(has_subquery), K(has_dependent_subquery), K(ref_update_table));
ret = (has_dependent_subquery || ref_update_table) ? OB_ERR_NON_UPDATABLE_TABLE : OB_SUCCESS;
}
}
if (OB_ERR_NON_UPDATABLE_TABLE == ret) {
ObString str = "DELETE";
LOG_USER_ERROR(OB_ERR_NON_UPDATABLE_TABLE,
table->get_table_name().length(),
table->get_table_name().ptr(),
str.length(),
str.ptr());
}
}
if (OB_SUCC(ret) && lib::is_oracle_mode()) {
if (OB_SUCC(ret)) {
bool has_distinct = false;
if (OB_FAIL(
ObResolverUtils::uv_check_oracle_distinct(*table, *session_info_, *schema_checker_, has_distinct))) {
LOG_WARN("check updatable view distinct failed", K(ret));
} else {
LOG_DEBUG("check has distinct", K(ret), K(has_distinct));
ret = has_distinct ? OB_ERR_ILLEGAL_VIEW_UPDATE : ret;
}
}
// check key preserved table
if (OB_SUCC(ret)) {
bool key_preserved = 0;
if (OB_FAIL(uv_check_key_preserved(*table, key_preserved))) {
LOG_WARN("check key preserved failed", K(ret));
} else {
LOG_DEBUG("check key preserved", K(key_preserved));
ret = !key_preserved ? OB_ERR_O_DELETE_VIEW_NON_KEY_PRESERVED : ret;
}
}
}
}
return ret;
}
int ObDeleteResolver::try_add_rowid_column_to_stmt(const TableItem& table_item)
{
int ret = OB_SUCCESS;
ObDeleteStmt* delete_stmt = get_delete_stmt();
IndexDMLInfo* primary_dml_info = NULL;
ObArray<ObColumnRefRawExpr*> column_exprs;
if (OB_ISNULL(delete_stmt)) {
ret = OB_ERR_UNEXPECTED;
SQL_RESV_LOG(WARN, "delete stmt is null", K(ret));
} else if (OB_ISNULL(primary_dml_info = delete_stmt->get_or_add_table_columns(table_item.table_id_))) {
ret = OB_ERR_UNEXPECTED;
SQL_RESV_LOG(WARN, "unexpecteed null primary dml info", K(ret));
} else if (OB_FAIL(delete_stmt->get_column_exprs(column_exprs))) {
LOG_WARN("failed to get column exprs", K(ret));
} else {
int rowid_col_idx = -1;
for (int i = 0; - 1 == rowid_col_idx && OB_SUCC(ret) && i < column_exprs.count(); i++) {
if (OB_ISNULL(column_exprs.at(i))) {
ret = OB_ERR_UNEXPECTED;
SQL_RESV_LOG(WARN, "unexpected null column expr", K(ret));
} else if (OB_HIDDEN_LOGICAL_ROWID_COLUMN_ID == column_exprs.at(i)->get_column_id() &&
table_item.table_id_ == column_exprs.at(i)->get_table_id()) {
rowid_col_idx = i;
}
} // for end
if (OB_FAIL(ret) || -1 == rowid_col_idx) {
// do nothing
} else if (OB_FAIL(add_var_to_array_no_dup(primary_dml_info->column_exprs_, column_exprs.at(rowid_col_idx)))) {
SQL_RESV_LOG(WARN, "failed to add element to array", K(ret));
}
}
return ret;
}
} // namespace sql
} // namespace oceanbase
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