private void GenerateSelect() { this._sql.AppendLine("SELECT"); //生成第一个直接查询的表的所有列 var rdp = RdbDataProvider.Get(this._directlyQueryRepository); var directlyQueryTableAlias = this.GetTableAlias(rdp.DbTable.Name); var directlyQueryTableColumns = new SQLColumnsGenerator(this._directlyQueryRepository) .GetReadableColumnsSql(directlyQueryTableAlias); this._sql.Append(directlyQueryTableColumns).Append(',').AppendLine(); //依次添加其它关系表的所有列 var items = this._aggregateInfo.Items; foreach (var item in items) { var tableName = RdbDataProvider.Get(item.PropertyEntityRepository).DbTable.Name; var tableAlias = GetTableAlias(tableName); var columns = new SQLColumnsGenerator(item.PropertyEntityRepository); var sqlColumns = columns.GetReadableColumnsSql(tableAlias); this._sql.Append(sqlColumns); if (item != items.Last.Value) { this._sql.Append(','); } this._sql.AppendLine(); } }