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Add an explicit comment about POSIX time zone names having the reverse

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sign convention from everyplace else in Postgres.  I don't suppose that
this will stop people from being confused, but at least we can say that
it's documented.
This commit is contained in:
Tom Lane 2007-05-08 17:02:59 +00:00
parent 3b4f9fe5d2
commit 97f796942f
1 changed files with 6 additions and 1 deletions
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7
doc/src/sgml/datatype.sgml
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@ -1,4 +1,4 @@
<!-- $PostgreSQL: pgsql/doc/src/sgml/datatype.sgml,v 1.199 2007/05/03 15:05:56 neilc Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/datatype.sgml,v 1.200 2007/05/08 17:02:59 tgl Exp $ -->
<chapter id="datatype">
<title id="datatype-title">Data Types</title>
@ -2275,6 +2275,11 @@ January 8 04:05:06 1999 PST
reasonableness of the zone abbreviations. For example, <literal>SET
TIMEZONE TO FOOBAR0</> will work, leaving the system effectively using
a rather peculiar abbreviation for UTC.
Another issue to keep in mind is that in POSIX time zone names,
positive offsets are used for locations <emphasis>west</> of Greenwich.
Everywhere else, <productname>PostgreSQL</productname> follows the
ISO-8601 convention that positive timezone offsets are <emphasis>east</>
of Greenwich.
</para>
<para>