diff --git a/src/client/src/tscSQLParser.c b/src/client/src/tscSQLParser.c
index e96e7e5b232a500f5780688cab8a82ab6545e624..0bb900540100bd6bec4c17ff4273d10df82f6f15 100644
--- a/src/client/src/tscSQLParser.c
+++ b/src/client/src/tscSQLParser.c
@@ -2454,6 +2454,7 @@ int32_t addExprAndResultField(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, int32_t col
   const char* msg12 = "parameter is out of range [1, 100]";
   const char* msg13 = "parameter list required";
   const char* msg14 = "third parameter algorithm must be 'default' or 't-digest'";
+  const char* msg15 = "parameter is out of range [0, 1000]";
 
   switch (functionId) {
     case TSDB_FUNC_COUNT: {
@@ -2903,9 +2904,9 @@ int32_t addExprAndResultField(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, int32_t col
       } else if (functionId == TSDB_FUNC_MAVG || functionId == TSDB_FUNC_SAMPLE) {
         tVariantDump(pVariant, val, TSDB_DATA_TYPE_BIGINT, true);
 
-        int64_t numRowsSelected = GET_INT32_VAL(val);
+        int64_t numRowsSelected = GET_INT64_VAL(val);
         if (numRowsSelected <= 0 || numRowsSelected > 1000) {
-          return invalidOperationMsg(tscGetErrorMsgPayload(pCmd), msg12);
+          return invalidOperationMsg(tscGetErrorMsgPayload(pCmd), msg15);
         }
 
         // todo REFACTOR