From 6b77778c7de63c2f4f44a8ee4e7580f6a3f02fda Mon Sep 17 00:00:00 2001
From: Tom Lane <tgl@sss.pgh.pa.us>
Date: Sun, 2 Apr 2000 22:28:54 +0000
Subject: [PATCH] Mention DST boundaries as a possible cause of regress test
failure.
---
doc/src/sgml/regress.sgml | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/doc/src/sgml/regress.sgml b/doc/src/sgml/regress.sgml
index bf7162bb388..a4ed601ce4c 100644
--- a/doc/src/sgml/regress.sgml
+++ b/doc/src/sgml/regress.sgml
@@ -313,6 +313,15 @@ The runtime path is /usr/local/pgsql (other paths are possible).
environment variable PGTZ to PST8PDT to ensure proper results.
</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>
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
--
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