PostgreSQL更新时区偏移 [英] PostgreSQL update time zone offset

问题描述

什么是纠正时区的快速简便方法？时区错误的时间戳字段在错误的时区中意外输入了？

What's a quick and easy way to correct the time zone TIMESTAMP WITH TIME ZONE fields accidentally entered in the wrong time zone?

在我的情况下，以下记录被错误地输入到UTC而非美国/太平洋地区：

In my case, the following records were mistakenly input in UTC rather than in US/Pacific:

           t0           |           t1           |     what
------------------------+------------------------+---------------
 2011-06-01 13:00:00+00 | 2011-06-01 13:10:00+00 | recalibrating
 2011-06-01 13:10:00+00 | 2011-06-01 13:45:00+00 | verifying
 2011-06-01 13:45:00+00 | 2011-06-01 13:55:00+00 | FAULT

幸运的是，没有任何错误的记录跨越夏令时的界限，因此UTC 2点可以

Fortunately, none of the mistaken records cross daylight savings boundaries, so 2 o'clock UTC can simply be corrected as 2 o'clock Pacific.

推荐答案

UPDATE <table> SET <timestamptz_field> = (<timestamptz_field> AT TIME ZONE 'UTC') AT TIME ZONE '<correct_time_zone>';

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