enh: ins_table count optimize

source/libs/parser/src/parAstParser.c

@@ -165,7 +165,8 @@ static int32_t collectMetaKeyFromRealTableImpl(SCollectMetaKeyCxt* pCxt, const c
   if (TSDB_CODE_SUCCESS == code && (0 == strcmp(pTable, TSDB_INS_TABLE_DNODE_VARIABLES))) {
     code = reserveDnodeRequiredInCache(pCxt->pMetaCache);
   }
-  if (TSDB_CODE_SUCCESS == code && (0 == strcmp(pTable, TSDB_INS_TABLE_TAGS)) &&
+  if (TSDB_CODE_SUCCESS == code &&
+      (0 == strcmp(pTable, TSDB_INS_TABLE_TAGS) || 0 == strcmp(pTable, TSDB_INS_TABLE_TABLES)) &&
       QUERY_NODE_SELECT_STMT == nodeType(pCxt->pStmt)) {
     code = collectMetaKeyFromInsTags(pCxt);
   }

source/libs/planner/src/planOptimizer.c

@@ -2658,7 +2658,7 @@ static int32_t tbCntScanOptCreateSumFunc(SFunctionNode* pCntFunc, SNode* pParam,
   }
   strcpy(pFunc->functionName, "sum");
   strcpy(pFunc->node.aliasName, pCntFunc->node.aliasName);
-  int32_t code = nodesListMakeStrictAppend(&pFunc->pParameterList, nodesCloneNode(pParam));
+  int32_t code = createColumnByRewriteExpr(pParam, &pFunc->pParameterList);
   if (TSDB_CODE_SUCCESS == code) {
     code = fmGetFuncInfo(pFunc, NULL, 0);
   }