diff --git a/source/libs/function/src/builtins.c b/source/libs/function/src/builtins.c
index 6eb2be34b3..844bfb07fc 100644
--- a/source/libs/function/src/builtins.c
+++ b/source/libs/function/src/builtins.c
@@ -468,7 +468,8 @@ static int32_t translateStddevMerge(SFunctionNode* pFunc, char* pErrBuf, int32_t
 
 static int32_t translateWduration(SFunctionNode* pFunc, char* pErrBuf, int32_t len) {
   // pseudo column do not need to check parameters
-  pFunc->node.resType = (SDataType){.bytes = tDataTypes[TSDB_DATA_TYPE_BIGINT].bytes, .type = TSDB_DATA_TYPE_BIGINT};
+  pFunc->node.resType = (SDataType){.bytes = tDataTypes[TSDB_DATA_TYPE_BIGINT].bytes, .type = TSDB_DATA_TYPE_BIGINT,
+                                    .precision = pFunc->node.resType.precision};
   return TSDB_CODE_SUCCESS;
 }
 
@@ -491,7 +492,8 @@ static int32_t translateTimePseudoColumn(SFunctionNode* pFunc, char* pErrBuf, in
   // pseudo column do not need to check parameters
 
   pFunc->node.resType =
-      (SDataType){.bytes = tDataTypes[TSDB_DATA_TYPE_TIMESTAMP].bytes, .type = TSDB_DATA_TYPE_TIMESTAMP};
+      (SDataType){.bytes = tDataTypes[TSDB_DATA_TYPE_TIMESTAMP].bytes, .type = TSDB_DATA_TYPE_TIMESTAMP,
+                  .precision = pFunc->node.resType.precision};
   return TSDB_CODE_SUCCESS;
 }