diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/backend/parser/gram.y | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/backend/parser/gram.y b/src/backend/parser/gram.y index 5cb82977d5d..07cc81ee764 100644 --- a/src/backend/parser/gram.y +++ b/src/backend/parser/gram.y @@ -12764,7 +12764,10 @@ c_expr: columnref { $$ = $1; } * AEXPR_PAREN nodes wrapping all explicitly * parenthesized subexpressions; this prevents bogus * warnings from being issued when the ordering has - * been forced by parentheses. + * been forced by parentheses. Take care that an + * AEXPR_PAREN node has the same exprLocation as its + * child, so as not to cause surprising changes in + * error cursor positioning. * * In principle we should not be relying on a GUC to * decide whether to insert AEXPR_PAREN nodes. @@ -12773,7 +12776,8 @@ c_expr: columnref { $$ = $1; } * we'd just as soon not waste cycles on dummy parse * nodes if we don't have to. */ - $$ = (Node *) makeA_Expr(AEXPR_PAREN, NIL, $2, NULL, @1); + $$ = (Node *) makeA_Expr(AEXPR_PAREN, NIL, $2, NULL, + exprLocation($2)); } else $$ = $2; |