| From: | Naz Gassiep <naz(at)mira(dot)net> |
|---|---|
| To: | |
| Cc: | josh(at)agliodbs(dot)com, Zdenek Kotala <Zdenek(dot)Kotala(at)sun(dot)com>, pgsql-hackers(at)postgresql(dot)org, mledford(at)ugaalum(dot)uga(dot)edu |
| Subject: | Re: Daylight Saving Time question PostgreSQL 8.1.4 |
| Date: | 2007-03-14 13:10:31 |
| Message-ID: | 45F7F447.2030807@mira.net |
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| Lists: | pgsql-hackers |
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Granted, but a configure switch would allow users who want to use OS TZ
file in conjunction with a compiled from source installation. Many
users of OSes with package managers such as Debian or RedHat may, for
whatever reason, want to use a source tarball to install and also use
the OS TZ list.
<br>
<br>
That being said, this user group may be small enough to ignore. Just
throwing it in for thought.
<br>
<br>
Tom Lane wrote:
<blockquote cite="mid7680(dot)1173809641(at)sss(dot)pgh(dot)pa(dot)us" type="cite">
<pre wrap="">Josh Berkus <a class="moz-txt-link-rfc2396E" href="mailto:josh(at)agliodbs(dot)com"><josh(at)agliodbs(dot)com></a> writes:
</pre>
<blockquote type="cite">
<pre wrap="">Zdenec,
</pre>
<blockquote type="cite">
<pre wrap="">I have following idea:
1) add guc varibale which enable usage of OS time zone files
2) add extra parameters into ./configure script which enable OS TZ
support in the code and get path to OS TZ files.
</pre>
</blockquote>
</blockquote>
<pre wrap=""><!---->
</pre>
<blockquote type="cite">
<pre wrap="">If we're adding it as a configure-time variable, there's no reason to have
a GUC.
</pre>
</blockquote>
<pre wrap=""><!---->
I see zero reason to have either. It would only make sense to do this
in the context of a platform-specific distribution such as an RPM, and
in that context the simplest solution is to let the RPM specfile make
the substitution (ie, after "make install" and before packaging,
rm -rf PG's timezone tree and insert a symlink). Then it's on the RPM
packager's head whether it's the right thing to do or not. A configure
switch strikes me as mostly a foot-gun, because the average user of
Postgres won't have any way to know whether the files are compatible.
regards, tom lane
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TIP 9: In versions below 8.0, the planner will ignore your desire to
choose an index scan if your joining column's datatypes do not
match
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