rowstamp: allow usage on zeroed stamp

diff --git a/src/rowstamp.h b/src/rowstamp.h
index 37ca3784ef925ad58064ce240742d9d5b917a993..2f8fb0b79c7c0732e0fbb64f4ac0aaad5b22205b 100644 (file)
--- a/src/rowstamp.h
+++ b/src/rowstamp.h
@@ -69,6 +69,8 @@ static inline void scstamp_set(int cache, SysCacheStamp *stamp, HeapTuple tup)
 
 static inline bool scstamp_check(int cache, SysCacheStamp *stamp, uint32 hashValue)
 {
+       if (stamp->cacheid == 0)
+               return true;
        if (cache != stamp->cacheid)
                elog(WARNING, "cache id mismatch: stamp:%d cur:%d", stamp->cacheid, cache);
        return !hashValue || stamp->hashValue == hashValue;