postgres
diff --git a/‎src/backend/access/nbtree/nbtutils.c
Lines changed: 6 additions & 2 deletions b/‎src/backend/access/nbtree/nbtutils.c
Lines changed: 6 additions & 2 deletions
@@ -1813,6 +1813,12 @@ _bt_advance_array_keys(IndexScanDesc scan, BTReadPageState *pstate,
 				all_required_satisfied = true,
 				all_satisfied = true;
 
+	/*
+	 * Unset so->scanBehind (and so->oppositeDirCheck) in case they're still
+	 * set from back when we dealt with the previous page's high key/finaltup
+	 */
+	so->scanBehind = so->oppositeDirCheck = false;
+
 	if (sktrig_required)
 	{
 		/*
@@ -1821,8 +1827,6 @@ _bt_advance_array_keys(IndexScanDesc scan, BTReadPageState *pstate,
 		Assert(!_bt_tuple_before_array_skeys(scan, dir, tuple, tupdesc,
 											 tupnatts, false, 0, NULL));
 
-		so->scanBehind = so->oppositeDirCheck = false;	/* reset */
-
 		/*
 		 * Required scan key wasn't satisfied, so required arrays will have to
 		 * advance.  Invalidate page-level state that tracks whether the