[TD-225]fix bugs by regression test.

src/client/src/tscSQLParser.c

@@ -4019,6 +4019,7 @@ static int32_t setTableCondForSTableQuery(SSqlCmd* pCmd, SQueryInfo* pQueryInfo,
   if (pExpr->nSQLOptr == TK_LIKE) {
     char* str = taosStringBuilderGetResult(sb, NULL);
     pQueryInfo->tagCond.tbnameCond.cond = strdup(str);
+    pQueryInfo->tagCond.tbnameCond.len = strlen(str);
     return TSDB_CODE_SUCCESS;
   }
 
@@ -4068,6 +4069,7 @@ static int32_t setTableCondForSTableQuery(SSqlCmd* pCmd, SQueryInfo* pQueryInfo,
 
   char* str = taosStringBuilderGetResult(&sb1, NULL);
   pQueryInfo->tagCond.tbnameCond.cond = strdup(str);
+  pQueryInfo->tagCond.tbnameCond.len = strlen(str);
 
   taosStringBuilderDestroy(&sb1);
   tfree(segments);

src/client/src/tscUtil.c

@@ -1512,6 +1512,7 @@ int32_t tscTagCondCopy(STagCond* dest, const STagCond* src) {
   }
 
   dest->tbnameCond.uid = src->tbnameCond.uid;
+  dest->tbnameCond.len = src->tbnameCond.len;
 
   memcpy(&dest->joinInfo, &src->joinInfo, sizeof(SJoinInfo));
   dest->relType = src->relType;