[TS-445] develop decide how to open offset skip switch

src/query/src/qExecutor.c

@@ -8968,14 +8968,10 @@ SQInfo* createQInfoImpl(SQueryTableMsg* pQueryMsg, SGroupbyExpr* pGroupbyExpr, S
 
   // calc skipOffset 
   if(pQueryMsg->offset > 0 && TSDB_QUERY_HAS_TYPE(pQueryMsg->queryType, TSDB_QUERY_TYPE_PROJECTION_QUERY)) {
-     pQueryAttr->skipOffset = true;
-     for (int32_t i = 0; i < pQueryAttr->numOfCols; ++i) {
-       if (pQueryAttr->tableCols[i].flist.numOfFilters > 0 
-        && pQueryAttr->tableCols[i].colId != PRIMARYKEY_TIMESTAMP_COL_INDEX) {
-         pQueryAttr->skipOffset = false;  
-         break;    
-       }
-     }
+    if(pQueryAttr->stableQuery) 
+      pQueryAttr->skipOffset = false;
+    else 
+      pQueryAttr->skipOffset = pQueryAttr->pFilters == NULL;
   }
 
   if (pSecExprs != NULL) {