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-rw-r--r--src/backend/utils/adt/selfuncs.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/src/backend/utils/adt/selfuncs.c b/src/backend/utils/adt/selfuncs.c
index 5e26ee500ca..b65959047c2 100644
--- a/src/backend/utils/adt/selfuncs.c
+++ b/src/backend/utils/adt/selfuncs.c
@@ -15,7 +15,7 @@
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/utils/adt/selfuncs.c,v 1.214.2.3 2007/01/28 01:37:45 tgl Exp $
+ * $PostgreSQL: pgsql/src/backend/utils/adt/selfuncs.c,v 1.214.2.4 2007/01/28 02:53:42 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -1700,6 +1700,9 @@ scalararraysel(PlannerInfo *root,
int
estimate_array_length(Node *arrayexpr)
{
+ /* look through any binary-compatible relabeling of arrayexpr */
+ arrayexpr = strip_array_coercion(arrayexpr);
+
if (arrayexpr && IsA(arrayexpr, Const))
{
Datum arraydatum = ((Const *) arrayexpr)->constvalue;