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Document the precision arguments for date/time types per SQL9x.

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Update the list of recognized time zones.
Document the range of arguments allowed for SET TIME ZONE.
Still need to add info on other date/time symbols (e.g. "AM", "T")
 and to freshen the docs on the date/time parsing rules.
This commit is contained in:
Thomas G. Lockhart
2001-12-29 18:35:54 +00:00
parent b5e23db438
commit dd0279b1ba
3 changed files with 185 additions and 99 deletions
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42
doc/src/sgml/ref/set.sgml
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@@ -1,5 +1,5 @@
<!--
$Header: /cvsroot/pgsql/doc/src/sgml/ref/set.sgml,v 1.54 2001/12/08 03:24:39 thomas Exp $
$Header: /cvsroot/pgsql/doc/src/sgml/ref/set.sgml,v 1.55 2001/12/29 18:35:54 thomas Exp $
PostgreSQL documentation
-->
@@ -235,6 +235,13 @@ SELECT setseed(<replaceable>value</replaceable>);
<term>TIME ZONE</term>
<term>TIMEZONE</term>
<listitem>
<para>
Sets the default time zone for your session. Arguments can be
an SQL time interval constant, an integer or double precision
constant, or a string representing a time zone supported by
the host operating system.
</para>
<para>
The possible values for time zone depends on your operating
system. For example, on Linux
@@ -243,10 +250,10 @@ SELECT setseed(<replaceable>value</replaceable>);
</para>
<para>
Here are some valid values for time zone:
<variablelist>
<variablelist>
<varlistentry>
<term>PST8PDT</term>
<term>'PST8PDT'</term>
<listitem>
<para>
Set the time zone for California.
@@ -254,10 +261,10 @@ SELECT setseed(<replaceable>value</replaceable>);
</listitem>
</varlistentry>
<varlistentry>
<term>Portugal</term>
<term>'Portugal'</term>
<listitem>
<para>
Set time zone for Portugal.
Set the time zone for Portugal.
</para>
</listitem>
</varlistentry>
@@ -265,7 +272,24 @@ SELECT setseed(<replaceable>value</replaceable>);
<term>'Europe/Rome'</term>
<listitem>
<para>
Set time zone for Italy.
Set the time zone for Italy.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>7</term>
<listitem>
<para>
Set the time zone to 7 hours offset west from GMT (equivalent
to PDT).
</para>
</listitem>
</varlistentry>
<term>INTERVAL '08:00' HOUR TO MINUTE</term>
<listitem>
<para>
Set the time zone to 8 hours offset west from GMT (equivalent
to PST).
</para>
</listitem>
</varlistentry>
@@ -286,9 +310,9 @@ SELECT setseed(<replaceable>value</replaceable>);
becomes GMT (on most systems anyway).
</para>
<para>
If the PGTZ environment variable is set in the frontend
If the <envar>PGTZ</envar> environment variable is set in the frontend
environment of a client based on libpq, libpq will automatically
set TIMEZONE to the value of PGTZ during connection start-up.
set TIMEZONE to the value of <envar>PGTZ</envar> during connection start-up.
</para>
</listitem>
</varlistentry>