Question

让我们说由于一些腐败，postgres会触发自动恢复。这导致重做从0 / 9A3F58开始＆＃34;因为我可以在数据库日志中。作为恢复的一部分，我想它会尝试插入表的记录。它是否会导致该表的数据库插入触发器也被执行。我们正在使用postgres 8.4。

来自postgres日志的

片段：

2015-06-17 10:43:34 PDT LOG:  unexpected EOF on client connection
2015-06-17 10:43:34 PDT LOG:  unexpected EOF on client connection
2015-06-17 10:43:34 PDT LOG:  unexpected EOF on client connection
2015-06-17 10:43:34 PDT LOG:  unexpected EOF on client connection
2015-06-19 08:55:30 CDT LOG:  database system was interrupted; last known up at 2015-06-17 20:05:02 CDT
2015-06-19 08:55:30 CDT LOG:  database system was not properly shut down; automatic recovery in progress
2015-06-19 08:55:30 CDT LOG:  redo starts at 0/9A3F58
2015-06-19 08:55:30 CDT LOG:  incomplete startup packet
2015-06-19 08:55:30 CDT FATAL:  the database system is starting up
2015-06-19 08:55:30 CDT LOG:  record with zero length at 0/E90334
2015-06-19 08:55:30 CDT LOG:  redo done at 0/E90308
2015-06-19 08:55:30 CDT LOG:  last completed transaction was at log time     2015-06-17 12:43:32.471831-05
2015-06-19 08:55:31 CDT LOG:  database system is ready to accept connections
2015-06-19 08:55:31 CDT LOG:  autovacuum launcher started
2015-06-19 08:59:29 CDT LOG:  unexpected EOF on client connection
2015-06-19 08:59:29 CDT LOG:  unexpected EOF on client connection
2015-06-19 08:59:29 CDT LOG:  unexpected EOF on client connection

Answer 1

不，从预写日志重播绝对不会不导致触发器触发。实际上，它们不能，因为预写日志存储块级更改，而不是行级更改，并且不知道哪个SQL语句更改了哪一行

postgres重做日志触发表触发器

1 个答案: