add murmurhash32 for skew batch

2023-05-22 08:06:55 -07:00
parent 13b420e4e3
commit c552bbee17
1 changed files with 1 additions and 0 deletions
--- a/src/gausskernel/runtime/executor/nodeHash.cpp
+++ b/src/gausskernel/runtime/executor/nodeHash.cpp
@ -1798,6 +1798,7 @@ static void ExecHashBuildSkewHash(HashJoinTable hashtable, Hash* node, int mcvsT
            int bucket;

            hashvalue = DatumGetUInt32(FunctionCall1Coll(&hashfunctions[0], hashtable->collations[0], values[i]));
+            hashvalue = murmurhash32(hashvalue);

            /*
             * While we have not hit a hole in the hashtable and have not hit