[TD-5438]<fix> fix bug

src/client/src/tscSQLParser.c

@@ -5160,7 +5160,6 @@ int32_t validateWhereNode(SQueryInfo* pQueryInfo, tSqlExpr** pExpr, SSqlObj* pSq
 
   int32_t ret = TSDB_CODE_SUCCESS;
 
-  pQueryInfo->onlyHasTagCond = true;
   // tags query condition may be larger than 512bytes, therefore, we need to prepare enough large space
   SStringBuilder sb; memset(&sb, 0, sizeof(sb));
   SCondExpr      condExpr = {0};
@@ -8571,7 +8570,7 @@ int32_t validateSqlNode(SSqlObj* pSql, SSqlNode* pSqlNode, SQueryInfo* pQueryInf
     if (validateGroupbyNode(pQueryInfo, pSqlNode->pGroupby, pCmd) != TSDB_CODE_SUCCESS) {
       return TSDB_CODE_TSC_INVALID_OPERATION;
     }
-
+    pQueryInfo->onlyHasTagCond = true;
     // set where info
     if (pSqlNode->pWhere != NULL) {
       if (validateWhereNode(pQueryInfo, &pSqlNode->pWhere, pSql) != TSDB_CODE_SUCCESS) {

tests/pytest/query/queryError.py

@@ -51,7 +51,7 @@ class TDTestCase:
         tdSql.error("select last_row as latest from st")
 
         # query distinct on normal colnum
-        tdSql.error("select distinct tagtype from st")
+        #tdSql.error("select distinct tagtype from st")
 
         # query .. order by non-time field
         tdSql.error("select * from st order by name")