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Fix multiset bugs

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This commit is contained in:
xianyu-w
2023-02-06 17:12:32 +08:00
committed by ob-robot
parent 9781c48dfa
commit 540ae51f64
5 changed files with 138 additions and 54 deletions
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32
src/sql/resolver/dml/ob_select_resolver.cpp
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@ -342,6 +342,8 @@ int ObSelectResolver::do_resolve_set_query_in_cte(const ParseNode &parse_tree, b
LOG_WARN("failed to formalize stmt", K(ret));
} else if (OB_FAIL(check_order_by())) {
LOG_WARN("failed to check order by", K(ret));
} else if (OB_FAIL(check_udt_set_query())) {
LOG_WARN("failed to check udt set query", K(ret));
} else if (has_top_limit_) {
has_top_limit_ = false;
select_stmt->set_has_top_limit(NULL != parse_tree.children_[PARSE_SELECT_LIMIT]);
@ -444,6 +446,8 @@ int ObSelectResolver::do_resolve_set_query(const ParseNode &parse_tree)
LOG_WARN("failed to formalize stmt", K(ret));
} else if (OB_FAIL(check_order_by())) {
LOG_WARN("failed to check order by", K(ret));
} else if (OB_FAIL(check_udt_set_query())) {
LOG_WARN("failed to check udt set query", K(ret));
} else if (has_top_limit_) {
has_top_limit_ = false;
select_stmt->set_has_top_limit(NULL != parse_tree.children_[PARSE_SELECT_LIMIT]);
@ -451,6 +455,34 @@ int ObSelectResolver::do_resolve_set_query(const ParseNode &parse_tree)
return ret;
}
int ObSelectResolver::check_udt_set_query()
{
int ret = OB_SUCCESS;
ObSelectStmt *select_stmt = get_select_stmt();
if (OB_ISNULL(select_stmt)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("unexpected null", K(ret));
} else if (select_stmt->is_set_stmt()) {
if (select_stmt->get_set_op() == ObSelectStmt::UNION && !select_stmt->is_set_distinct()) {
// UNION ALL
// do nothing
} else {
for (int64_t i = 0; OB_SUCC(ret) && i < select_stmt->get_select_item_size(); i++) {
ObRawExpr *expr = select_stmt->get_select_item(i).expr_;
if (OB_ISNULL(expr)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("unexpected null", K(ret));
} else if (expr->get_result_type().is_ext()) {
ret = OB_NOT_SUPPORTED;
LOG_WARN("set operator for udt not supported", K(ret));
LOG_USER_ERROR(OB_NOT_SUPPORTED, "set operator for udt");
}
}
}
}
return ret;
}
// resolve 对于非cte, union, check child 能否展平（limit、order、fetch）
int ObSelectResolver::do_resolve_set_query(const ParseNode &parse_tree,
common::ObIArray<ObSelectStmt*> &child_stmts,