From e80802186dbe129e3748a647f7b807ea916f169b Mon Sep 17 00:00:00 2001 From: Richard Guo Date: Fri, 12 Aug 2022 17:18:13 +0800 Subject: [PATCH v1] Check for stack overflow in transformFromClauseItem --- src/backend/parser/parse_clause.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/src/backend/parser/parse_clause.c b/src/backend/parser/parse_clause.c index 5a18107e79..b85fbebd00 100644 --- a/src/backend/parser/parse_clause.c +++ b/src/backend/parser/parse_clause.c @@ -1050,6 +1050,9 @@ transformFromClauseItem(ParseState *pstate, Node *n, ParseNamespaceItem **top_nsitem, List **namespace) { + /* Guard against stack overflow due to overly deep subtree */ + check_stack_depth(); + if (IsA(n, RangeVar)) { /* Plain relation reference, or perhaps a CTE reference */ -- 2.31.0