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fix late materialization bug

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This commit is contained in:
2149
2023-11-22 06:45:14 +00:00
committed by ob-robot
parent 0e5dc3cd30
commit 72ec4556de
2 changed files with 28 additions and 0 deletions
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26
src/sql/optimizer/ob_select_log_plan.cpp
View File

@ -7210,6 +7210,7 @@ int ObSelectLogPlan::if_plan_need_late_materialization(ObLogicalOperator *top,
ObLogSort *child_sort = NULL;
ObLogTableScan *table_scan = NULL;
ObSEArray<uint64_t, 4> used_column_ids;
bool contain_enumset_rowkey = false;
if (OB_ISNULL(top) || OB_ISNULL(stmt = get_stmt())) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get unexpected null", K(top), K(get_stmt()), K(ret));
@ -7221,6 +7222,10 @@ int ObSelectLogPlan::if_plan_need_late_materialization(ObLogicalOperator *top,
NULL == table_scan->get_plan() ||
NULL == child_sort) {
//do nothing
} else if (OB_FAIL(contain_enum_set_rowkeys(*table_scan, contain_enumset_rowkey))) {
LOG_WARN("check whether table has enumset rowkey failed", K(ret));
} else if (contain_enumset_rowkey) {
//if there are enumset rowkeys, don't use late materialization since 'enumset_col = ?' cannot be used to extract query ranges
} else if (OB_FAIL(if_index_back_plan_need_late_materialization(child_sort,
table_scan,
used_column_ids,
@ -7627,5 +7632,26 @@ int ObSelectLogPlan::check_external_table_scan(ObSelectStmt *stmt, bool &has_ext
return ret;
}
int ObSelectLogPlan::contain_enum_set_rowkeys(const ObLogTableScan &table_scan, bool &contain) {
int ret = OB_SUCCESS;
ObSEArray<ObRawExpr*, 4> table_keys;
contain = false;
if (OB_FAIL(get_rowkey_exprs(table_scan.get_table_id(),
table_scan.get_ref_table_id(),
table_keys))) {
LOG_WARN("failed to generate rowkey exprs", K(ret));
} else {
for (int64_t i = 0; OB_SUCC(ret) && !contain && i < table_keys.count(); ++i) {
if (OB_ISNULL(table_keys.at(i))) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("row key is null", K(ret));
} else if (ob_is_enumset_tc(table_keys.at(i)->get_result_type().get_type())) {
contain = true;
}
}
}
return ret;
}
}//sql
}//oceanbase

2
src/sql/optimizer/ob_select_log_plan.h
View File

@ -883,6 +883,8 @@ private:
int check_external_table_scan(ObSelectStmt *stmt, bool &has_external_table);
int contain_enum_set_rowkeys(const ObLogTableScan &table_scan, bool &contain);
DISALLOW_COPY_AND_ASSIGN(ObSelectLogPlan);
};
}//end of namespace sql