尽管记录了持续时间，Postgres仍未记录所有查询

Question

我试图让我的postgresql 9.3服务器记录运行时间超过1秒的所有sql。我已经设定了：

log_min_duration=1s
log_statement='mod'
log_duration=off

对于大多数查询，日志记录工作正常，但有些语句，例如＆＃34; CREATE TABLE AS＆＃34;或＆＃34; INSERT＆＃34;没有记录声明。记录持续时间，但不是完整的sql。

之前有没有其他人见过这类问题，或者知道为什么postgres可能没有记录sql？ （可能是一个交易块？）非常感谢任何帮助，谢谢。

Answer 1

The correct parameter is log_min_duration_statement and not log_min_duration.

And this note, from docs,

Note: When using this option together with log_statement, the text of statements that are logged because of log_statement will not be repeated in the duration log message. If you are not using syslog, it is recommended that you log the PID or session ID using log_line_prefix so that you can link the statement message to the later duration message using the process ID or session ID.

consider is a good explanation for problem.