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Make EXTRACT(TIMEZONE) and SET/SHOW TIMEZONE follow the SQL convention

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for the sign of timezone offsets, ie, positive is east from UTC.  These
were previously out of step with other operations that accept or show
timezones, such as I/O of timestamptz values.
This commit is contained in:
Tom Lane
2003-07-17 00:55:37 +00:00
parent 93236b58e0
commit 764f72dc82
10 changed files with 74 additions and 41 deletions
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10
doc/src/sgml/ref/set.sgml
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@@ -1,5 +1,5 @@
<!--
$Header: /cvsroot/pgsql/doc/src/sgml/ref/set.sgml,v 1.78 2003/07/15 19:19:56 tgl Exp $
$Header: /cvsroot/pgsql/doc/src/sgml/ref/set.sgml,v 1.79 2003/07/17 00:55:36 tgl Exp $
PostgreSQL documentation
-->
@@ -182,16 +182,16 @@ SELECT setseed(<replaceable>value</replaceable>);
</listitem>
</varlistentry>
<varlistentry>
<term><literal>7</literal></term>
<term><literal>-7</literal></term>
<listitem>
<para>
The time zone 7 hours west from UTC (equivalent
to PDT). Negative values are east from UTC.
to PDT). Positive values are east from UTC.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>INTERVAL '08:00' HOUR TO MINUTE</literal></term>
<term><literal>INTERVAL '-08:00' HOUR TO MINUTE</literal></term>
<listitem>
<para>
The time zone 8 hours west from UTC (equivalent
@@ -205,7 +205,7 @@ SELECT setseed(<replaceable>value</replaceable>);
<listitem>
<para>
Set the time zone to your local time zone (the one that
your operating system defaults to).
the server's operating system defaults to).
</para>
</listitem>
</varlistentry>