diff --git a/source/libs/function/src/builtins.c b/source/libs/function/src/builtins.c
index 4fd0db4819..4dae296f05 100644
--- a/source/libs/function/src/builtins.c
+++ b/source/libs/function/src/builtins.c
@@ -1546,16 +1546,18 @@ const SBuiltinFuncDefinition funcMgtBuiltins[] = {
     .finalizeFunc = avgFinalize,
     .invertFunc   = avgInvertFunction,
     .combineFunc  = avgCombine,
+    .pPartialFunc = "_avg_partial",
+    .pMergeFunc   = "_avg_merge"
   },
   {
     .name = "_avg_partial",
     .type = FUNCTION_TYPE_AVG_PARTIAL,
     .classification = FUNC_MGT_AGG_FUNC,
-    .translateFunc = translateInNumOutDou,
+    .translateFunc = translateAvgPartial,
     .getEnvFunc   = getAvgFuncEnv,
     .initFunc     = avgFunctionSetup,
     .processFunc  = avgFunction,
-    .finalizeFunc = avgFinalize,
+    .finalizeFunc = avgPartialFinalize,
     .invertFunc   = avgInvertFunction,
     .combineFunc  = avgCombine,
   },
@@ -1563,10 +1565,10 @@ const SBuiltinFuncDefinition funcMgtBuiltins[] = {
     .name = "_avg_merge",
     .type = FUNCTION_TYPE_AVG_MERGE,
     .classification = FUNC_MGT_AGG_FUNC,
-    .translateFunc = translateInNumOutDou,
+    .translateFunc = translateAvgMerge,
     .getEnvFunc   = getAvgFuncEnv,
     .initFunc     = avgFunctionSetup,
-    .processFunc  = avgFunction,
+    .processFunc  = avgFunctionMerge,
     .finalizeFunc = avgFinalize,
     .invertFunc   = avgInvertFunction,
     .combineFunc  = avgCombine,