标签：mysql创建表 get merge col 必须 localhost div sql tran
20200915：利用远程mysql创建表时出现报错。
CREATE TABLE test.test_perm ENGINE = MergeTree() ORDER BY app_id AS SELECT * FROM mysql(‘10.32.0.103:3306‘, ‘test‘, ‘test_perm‘, ‘trancare‘, ‘trancare‘)
Received exception from server (version 20.5.2):
Code: 44. DB::Exception: Received from localhost:9000. DB::Exception: Sorting key cannot contain nullable
0 rows in set. Elapsed: 2.246 sec.
排序字段app_id必须在mysql端定义为not null。
标签：mysql创建表 get merge col 必须 localhost div sql tran
原文地址：https://www.cnblogs.com/muyue123/p/13672114.html
