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Update FAQ from Ian Barwick.

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Bruce Momjian 2003-06-06 22:20:40 +00:00
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doc/FAQ
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Frequently Asked Questions (FAQ) for PostgreSQL
Last updated: Fri May 30 22:24:56 EDT 2003
Last updated: Fri Jun 6 18:20:23 EDT 2003
Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
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1.7) What is the latest release?
The latest release of PostgreSQL is version 7.3.2.
The latest release of PostgreSQL is version 7.3.3.
We plan to have major releases every four months.
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There are two PostgreSQL books available online at
http://www.PostgreSQL.org/docs/awbook.html and
http://www.commandprompt.com/ppbook/. There is a list of PostgreSQL
books available for purchase at http://www.ca.PostgreSQL.org/books/.
There is also a collection of PostgreSQL technical articles at
books available for purchase at
http://techdocs.PostgreSQL.org/techdocs/bookreviews.php. There is also
a collection of PostgreSQL technical articles at
http://techdocs.PostgreSQL.org/.
psql has some nice \d commands to show information about types,
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BEGIN;
ALTER TABLE tab ADD COLUMN new_col new_data_type;
UPDATE tab SET new_col = CAST(old_col AS new_data_type);
ALTER TABLE DROP COLUMN old_col;
ALTER TABLE tab DROP COLUMN old_col;
COMMIT;
You might then want to do VACUUM FULL tab to reclaim the disk space

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doc/src/FAQ/FAQ.html
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alink="#0000ff">
<H1>Frequently Asked Questions (FAQ) for PostgreSQL</H1>
<P>Last updated: Fri May 30 22:24:56 EDT 2003</P>
<P>Last updated: Fri Jun 6 18:20:23 EDT 2003</P>
<P>Current maintainer: Bruce Momjian (<A href=
"mailto:pgman@candle.pha.pa.us">pgman@candle.pha.pa.us</A>)<BR>
@ -323,7 +323,7 @@
<H4><A name="1.7">1.7</A>) What is the latest release?</H4>
<P>The latest release of PostgreSQL is version 7.3.2.</P>
<P>The latest release of PostgreSQL is version 7.3.3.</P>
<P>We plan to have major releases every four months.</P>
@ -340,7 +340,7 @@
"http://www.commandprompt.com/ppbook/">http://www.commandprompt.com/ppbook/</A>.
There is a list of PostgreSQL books available for purchase at <A
href=
"http://www.ca.PostgreSQL.org/books/">http://www.ca.PostgreSQL.org/books/</A>.
"http://techdocs.postgresql.org/techdocs/bookreviews.php">http://techdocs.PostgreSQL.org/techdocs/bookreviews.php</A>.
There is also a collection of PostgreSQL technical articles at <A
href=
"http://techdocs.PostgreSQL.org/">http://techdocs.PostgreSQL.org/</A>.</P>
@ -505,7 +505,7 @@
<P>Also, if you have a success story about PostgreSQL, please submit
it to our advocacy site at <a href="http://advocacy.postgresql.org">
http://advocacy.postgresql.org</a>.
http://advocacy.postgresql.org</a>.</P>
<H2 align="center">User Client Questions</H2>
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<I>postmaster</I>. For most systems, with default numbers of
buffers and processes, you need a minimum of ~1 MB. See the <A
href=
"http://www.PostgreSQL.org/docs/view.php?version=current&idoc=1&file=kernel-resources.html">PostgreSQL
"http://www.PostgreSQL.org/docs/view.php?version=current&amp;idoc=1&amp;file=kernel-resources.html">PostgreSQL
Administrator's Guide</A> for more detailed information about
shared memory and semaphores.</P>
@ -856,7 +856,7 @@
BEGIN;
ALTER TABLE tab ADD COLUMN new_col <i>new_data_type</i>;
UPDATE tab SET new_col = CAST(old_col AS <i>new_data_type</i>);
ALTER TABLE DROP COLUMN old_col;
ALTER TABLE tab DROP COLUMN old_col;
COMMIT;
</PRE>
<P>You might then want to do <I>VACUUM FULL tab</I> to reclaim the