fix compile erro in vnodeQueryOnSingleTable() calling delete hashtable

src/system/detail/src/vnodeRead.c

@@ -679,7 +679,7 @@ void *vnodeQueryOnSingleTable(SMeterObj **pMetersObj, SSqlGroupbyExpr *pGroupbyE
     }
 
     if (((*code) = vnodeQueryTablePrepare(pQInfo, pQInfo->pObj, pSupporter, pTSBuf)) != TSDB_CODE_SUCCESS) {
-      taosDeleteFromHashTable(pSupporter->pMetersHashTable, (const char*) &pMetersObj[i]->sid, sizeof(pMetersObj[i]->sid));
+      taosDeleteFromHashTable(pSupporter->pMetersHashTable, (const char*) &pMetersObj[0]->sid, sizeof(pMetersObj[0]->sid));
       taosCleanUpHashTable(pSupporter->pMetersHashTable);
       free(pSupporter);
       goto _error;