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push cte preds when generate plan in cost based rewrite

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This commit is contained in:
xianyu-w
2023-09-11 03:10:33 +00:00
committed by ob-robot
parent 73d139ebdb
commit 32bc1e3d3d
6 changed files with 94 additions and 9 deletions
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41
src/sql/ob_sql_temp_table.cpp
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@ -91,7 +91,7 @@ int ObSqlTempTableInfo::collect_temp_tables(ObIAllocator &allocator,
temp_table_infos, query_ctx, do_collect_filter)))) {
LOG_WARN("failed to add all temp tables", K(ret));
} else if (OB_ISNULL(ptr = allocator.alloc(sizeof(ObSqlTempTableInfo)))) {
ret = OB_ERR_UNEXPECTED;
ret = OB_ALLOCATE_MEMORY_FAILED;
LOG_WARN("get unexpected null", K(ret));
} else {
temp_table_info = new (ptr) ObSqlTempTableInfo();
@ -120,6 +120,45 @@ int ObSqlTempTableInfo::collect_temp_tables(ObIAllocator &allocator,
return ret;
}
int ObSqlTempTableInfo::collect_specified_temp_table(ObIAllocator &allocator,
ObSelectStmt *specified_query,
const ObIArray<ObDMLStmt *> &upper_stmts,
const ObIArray<TableItem *> &table_items,
ObSqlTempTableInfo &temp_table_info)
{
int ret = OB_SUCCESS;
temp_table_info.reset();
if (OB_ISNULL(specified_query) ||
OB_UNLIKELY(upper_stmts.count() != table_items.count())) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("unexpected param", K(specified_query), K(upper_stmts), K(table_items));;
} else {
temp_table_info.table_query_ = specified_query;
for (int64_t i = 0; OB_SUCC(ret) && i < upper_stmts.count(); i ++) {
TableItem *table = table_items.at(i);
ObDMLStmt *stmt = upper_stmts.at(i);
if (OB_ISNULL(stmt) || OB_ISNULL(table) ||
OB_UNLIKELY(specified_query != table->ref_query_)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("unexpected params", K(table_items), K(upper_stmts));
} else {
TableInfo table_info;
table_info.upper_stmt_ = stmt;
table_info.table_item_ = table;
if (OB_FAIL(collect_temp_table_filters(table_info.upper_stmt_,
table_info.table_item_,
table_info.table_filters_,
table_info.filter_conditions_))) {
LOG_WARN("failed to collect temp table info", K(ret));
} else if (OB_FAIL(temp_table_info.table_infos_.push_back(table_info))) {
LOG_WARN("failed to push back table info", K(ret));
}
}
}
}
return ret;
}
int ObSqlTempTableInfo::collect_temp_table_filters(ObDMLStmt *stmt,
TableItem *table,
ObIArray<ObRawExpr*> &table_filters,