[td-225] fix bugs in join query.

src/client/inc/tsclient.h

@@ -419,7 +419,6 @@ char *tscGetErrorMsgPayload(SSqlCmd *pCmd);
 int32_t tscInvalidSQLErrMsg(char *msg, const char *additionalInfo, const char *sql);
 
 int32_t tscToSQLCmd(SSqlObj *pSql, struct SSqlInfo *pInfo);
-//void    tscGetResultColumnChr(SSqlRes *pRes, SFieldInfo* pFieldInfo, int32_t column);
 
 static FORCE_INLINE void tscGetResultColumnChr(SSqlRes* pRes, SFieldInfo* pFieldInfo, int32_t columnIndex) {
   SFieldSupInfo* pInfo = (SFieldSupInfo*) TARRAY_GET_ELEM(pFieldInfo->pSupportInfo, columnIndex);

src/client/src/tscSubquery.c

@@ -1054,6 +1054,10 @@ void tscSetupOutputColumnIndex(SSqlObj* pSql) {
       }
     }
   }
+
+  // restore the offset value for super table query in case of final result.
+  tscRestoreSQLFuncForSTableQuery(pQueryInfo);
+  tscFieldInfoUpdateOffset(pQueryInfo);
 }
 
 void tscJoinQueryCallback(void* param, TAOS_RES* tres, int code) {
@@ -2046,9 +2050,7 @@ void tscBuildResFromSubqueries(SSqlObj *pSql) {
   }
 
   while (1) {
-    if (pRes->row < pRes->numOfRows) {
-      assert(0);
-    }
+    assert (pRes->row >= pRes->numOfRows);
 
     doBuildResFromSubqueries(pSql);
     sem_post(&pSql->rspSem);