hcq/oceanbase
1
0
Fork 0
Code Issues Pull Requests Actions 2 Packages Projects Releases Wiki Activity

patch bug fix to open source branch

Browse Source
This commit is contained in:
obdev
2021-07-19 22:45:15 +08:00
committed by wangzelin.wzl
parent e03cb03357
commit c949c5e01f
13 changed files with 252 additions and 101 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
src/sql/rewrite/ob_transform_pre_process.cpp
View File

@ -250,10 +250,20 @@ int ObTransformPreProcess::transform_for_grouping_sets_and_multi_rollup(ObDMLStm
ObSelectStmt* view_stmt = NULL;
ObSelectStmt* transform_stmt = NULL;
ObSelectStmt* set_view_stmt = NULL;
bool is_correlated = false;
int32_t stmt_level = select_stmt->get_current_level();
// step 1, creating spj stmt
if (OB_FAIL(ObTransformUtils::create_simple_view(ctx_, select_stmt, view_stmt))) {
LOG_WARN("failed to create spj view.", K(ret));
// step 2, creating temp table
} else if (stmt_level > 0 &&
OB_FAIL(ObTransformUtils::is_correlated_subquery(view_stmt,
stmt_level-1,
is_correlated))) {
LOG_WARN("failed to check is correlated subquery", K(ret));
} else if (is_correlated) {
ret = OB_NOT_SUPPORTED;
LOG_WARN("correlated temp table is not support now!", K(ret));
} else if (OB_FAIL(add_generated_table_as_temp_table(ctx_, select_stmt))) {
LOG_WARN("failed to add generated table as temp table", K(ret));
// setp 3, creating set stmt