diff options
Diffstat (limited to 'src/backend/parser/parse_cte.c')
| -rw-r--r-- | src/backend/parser/parse_cte.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/src/backend/parser/parse_cte.c b/src/backend/parser/parse_cte.c index 1fca7485ca3..b24989e4170 100644 --- a/src/backend/parser/parse_cte.c +++ b/src/backend/parser/parse_cte.c @@ -537,15 +537,15 @@ makeDependencyGraphWalker(Node *node, CteState *cstate) * In the non-RECURSIVE case, query names are visible to the * WITH items after them and to the main query. */ - ListCell *cell1; - cstate->innerwiths = lcons(NIL, cstate->innerwiths); - cell1 = list_head(cstate->innerwiths); foreach(lc, stmt->withClause->ctes) { CommonTableExpr *cte = (CommonTableExpr *) lfirst(lc); + ListCell *cell1; (void) makeDependencyGraphWalker(cte->ctequery, cstate); + /* note that recursion could mutate innerwiths list */ + cell1 = list_head(cstate->innerwiths); lfirst(cell1) = lappend((List *) lfirst(cell1), cte); } (void) raw_expression_tree_walker(node, @@ -813,15 +813,15 @@ checkWellFormedRecursionWalker(Node *node, CteState *cstate) * In the non-RECURSIVE case, query names are visible to the * WITH items after them and to the main query. */ - ListCell *cell1; - cstate->innerwiths = lcons(NIL, cstate->innerwiths); - cell1 = list_head(cstate->innerwiths); foreach(lc, stmt->withClause->ctes) { CommonTableExpr *cte = (CommonTableExpr *) lfirst(lc); + ListCell *cell1; (void) checkWellFormedRecursionWalker(cte->ctequery, cstate); + /* note that recursion could mutate innerwiths list */ + cell1 = list_head(cstate->innerwiths); lfirst(cell1) = lappend((List *) lfirst(cell1), cte); } checkWellFormedSelectStmt(stmt, cstate); |