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-rw-r--r--src/backend/parser/parse_expr.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/backend/parser/parse_expr.c b/src/backend/parser/parse_expr.c
index 1aaa5244e65..86d1da06775 100644
--- a/src/backend/parser/parse_expr.c
+++ b/src/backend/parser/parse_expr.c
@@ -386,7 +386,7 @@ transformExprRecurse(ParseState *pstate, Node *expr)
* selection from an arbitrary node needs it.)
*/
static void
-unknown_attribute(ParseState *pstate, Node *relref, char *attname,
+unknown_attribute(ParseState *pstate, Node *relref, const char *attname,
int location)
{
RangeTblEntry *rte;