set colid to result colid

src/client/src/tscSQLParser.c

@@ -1887,20 +1887,11 @@ static int32_t handleScalarTypeExpr(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, int32
     return invalidOperationMsg(tscGetErrorMsgPayload(pCmd), msg2);
   }
 
-  //set the columnIndex to first column Index so that column Id
   SColumnIndex index = {.tableIndex = tableIndex};
-  size_t numOfCols = taosArrayGetSize(colList);
-  if (numOfCols > 0) {
-    SColIndex* pIndex = taosArrayGet(colList, 0);
-    index.columnIndex = pIndex->colIndex;
-  }
-
   SExprInfo* pExpr = tscExprAppend(pQueryInfo, TSDB_FUNC_SCALAR_EXPR, &index, pNode->resultType, pNode->resultBytes,
                                    getNewResColId(pCmd), 0, false);
-  // if there are no columns, set the colId to the result column id
-  if (numOfCols == 0) {
+  // set the colId to the result column id
     pExpr->base.colInfo.colId = pExpr->base.resColId;
-  }
 
   char* name = (pItem->aliasName != NULL)? pItem->aliasName:pItem->pNode->exprToken.z;
   size_t len = MIN(sizeof(pExpr->base.aliasName), pItem->pNode->exprToken.n + 1);