作者
digoal
日期
2021-02-28
标签
PostgreSQL , row filter , logical replication
背景
在内置的pub, sub逻辑发布, 订阅功能中支持where filter. 发布端过滤某些记录不被plugin decoding.
https://www.postgresql.org/message-id/flat/f6566ad9-8979-4056-a4ce-24b09f389ede%40www.fastmail.com#42694388e3195dbdb0979c27e4fb894a
CREATE PUBLICATION foo FOR TABLE departments WHERE (id > 2000 AND id <= 3000);
```
Hi,
The attached patches add support for filtering rows in the publisher.
The output plugin will do the work if a filter was defined in CREATE
PUBLICATION command. An optional WHERE clause can be added after the
table name in the CREATE PUBLICATION such as:
CREATE PUBLICATION foo FOR TABLE departments WHERE (id > 2000 AND id <= 3000);
Row that doesn't match the WHERE clause will not be sent to the subscribers.
Patches 0001 and 0002 are only refactors and can be applied
independently. 0003 doesn't include row filtering on initial
synchronization.
Comments?
```
PostgreSQL 许愿链接
您的愿望将传达给PG kernel hacker、数据库厂商等, 帮助提高数据库产品质量和功能, 说不定下一个PG版本就有您提出的功能点. 针对非常好的提议，奖励限量版PG文化衫、纪念品、贴纸、PG热门书籍等，奖品丰富，快来许愿。开不开森.
9.9元购买3个月阿里云RDS PostgreSQL实例
PostgreSQL 解决方案集合
德哥 / digoal's github - 公益是一辈子的事.
