Silence _bt_check_unique compiler warning.

Reported-By: Tom Lane
Discussion: https://postgr.es/m/841649.1592065060@sss.pgh.pa.us

diff --git a/src/backend/access/nbtree/nbtinsert.c b/src/backend/access/nbtree/nbtinsert.c
index a36b35010e5bdc8a9dfa9941b6c564b7b0e68829..55fe16bd4e12d26fc77cfa58a1bf43d85dd047a5 100644 (file)
--- a/src/backend/access/nbtree/nbtinsert.c
+++ b/src/backend/access/nbtree/nbtinsert.c
@@ -389,7 +389,7 @@ _bt_check_unique(Relation rel, BTInsertState insertstate, Relation heapRel,
                                 uint32 *speculativeToken)
 {
        IndexTuple      itup = insertstate->itup;
-       IndexTuple      curitup;
+       IndexTuple      curitup = NULL;
        ItemId          curitemid;
        BTScanInsert itup_key = insertstate->itup_key;
        SnapshotData SnapshotDirty;