[td-4954]<fix>:update some error message strings.

src/client/src/tscSQLParser.c

@@ -1309,15 +1309,8 @@ static bool validateTagParams(SArray* pTagsList, SArray* pFieldList, SSqlCmd* pC
     return false;
   }
 
-  /* timestamp in tag is not allowed */
   for (int32_t i = 0; i < numOfTags; ++i) {
     TAOS_FIELD* p = taosArrayGet(pTagsList, i);
-
-    //if (p->type == TSDB_DATA_TYPE_TIMESTAMP) {
-    //  invalidOperationMsg(tscGetErrorMsgPayload(pCmd), msg4);
-    //  return false;
-    //}
-
     if (!isValidDataType(p->type)) {
       invalidOperationMsg(tscGetErrorMsgPayload(pCmd), msg5);
       return false;
@@ -2174,7 +2167,7 @@ int32_t addExprAndResultField(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, int32_t col
   const char* msg3 = "illegal column name";
   const char* msg4 = "invalid table name";
   const char* msg5 = "parameter is out of range [0, 100]";
-  const char* msg6 = "function applied to tags not allowed";
+  const char* msg6 = "functions applied to tags are not allowed";
   const char* msg7 = "normal table can not apply this function";
   const char* msg8 = "multi-columns selection does not support alias column name";
   const char* msg9 = "diff/derivative can no be applied to unsigned numeric type";
@@ -3087,9 +3080,9 @@ void tscRestoreFuncForSTableQuery(SQueryInfo* pQueryInfo) {
 }
 
 bool hasUnsupportFunctionsForSTableQuery(SSqlCmd* pCmd, SQueryInfo* pQueryInfo) {
-  const char* msg1 = "TWA/Diff/Derivative/Irate not allowed to apply to super table directly";
+  const char* msg1 = "TWA/Diff/Derivative/Irate are not allowed to apply to super table directly";
   const char* msg2 = "TWA/Diff/Derivative/Irate only support group by tbname for super table query";
-  const char* msg3 = "function not support for super table query";
+  const char* msg3 = "functions not support for super table query";
 
   // filter sql function not supported by metric query yet.
   size_t size = tscNumOfExprs(pQueryInfo);