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patch bug fix to open source branch

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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
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37
src/sql/rewrite/ob_transform_utils.cpp
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@ -61,6 +61,43 @@ int ObTransformUtils::is_correlated_expr(const ObRawExpr* expr, int32_t correlat
return ret;
}
int ObTransformUtils::is_correlated_subquery(ObSelectStmt* subquery,
int32_t correlated_level,
bool &is_correlated)
{
int ret = OB_SUCCESS;
is_correlated = false;
ObArray<ObRawExpr*> relation_exprs;
ObArray<ObSelectStmt*> child_stmts;
if (OB_ISNULL(subquery)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("unexpect null stmt", K(ret));
} else if (OB_FAIL(subquery->get_relation_exprs(relation_exprs))) {
LOG_WARN("get relation exprs failed", K(ret));
}
for (int64_t i = 0; OB_SUCC(ret) && !is_correlated && i < relation_exprs.count(); ++i) {
if (OB_FAIL(is_correlated_expr(relation_exprs.at(i),
correlated_level,
is_correlated))) {
LOG_WARN("failed to check is correlated expr", K(ret));
}
}
if (OB_SUCC(ret)) {
if (OB_FAIL(subquery->get_child_stmts(child_stmts))) {
LOG_WARN("get from subquery stmts failed", K(ret));
}
for (int64_t i = 0; OB_SUCC(ret) && !is_correlated && i < child_stmts.count(); ++i) {
if (OB_FAIL(SMART_CALL(is_correlated_subquery(child_stmts.at(i),
correlated_level,
is_correlated)))) {
LOG_WARN("failed to check is correlated subquery", K(ret));
}
}
}
return ret;
}
int ObTransformUtils::is_direct_correlated_expr(
const ObRawExpr* expr, int32_t correlated_level, bool& is_direct_correlated)
{