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Mention DST boundaries as a possible cause of regress test failure.

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Tom Lane 2000-04-02 22:28:54 +00:00
parent 4aefba9077
commit 6b77778c7d
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doc/src/sgml/regress.sgml
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@ -313,6 +313,15 @@ The runtime path is /usr/local/pgsql (other paths are possible).
environment variable PGTZ to PST8PDT to ensure proper results. environment variable PGTZ to PST8PDT to ensure proper results.
</Para> </Para>
<Para>
Some of the queries in the "timestamp" test will fail if you run
the test on the day of a daylight-savings time changeover, or the
day before or after one. These queries assume that the intervals
between midnight yesterday, midnight today and midnight tomorrow are
exactly twenty-four hours ... which is wrong if daylight-savings time
went into or out of effect meanwhile.
</Para>
<Para> <Para>
There appear to be some systems which do not accept the recommended syntax There appear to be some systems which do not accept the recommended syntax
for explicitly setting the local time zone rules; you may need to use for explicitly setting the local time zone rules; you may need to use