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Backpatch FAQs to 8.1.X.

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Bruce Momjian
2006-05-19 03:34:49 +00:00
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doc/FAQ
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Frequently Asked Questions (FAQ) for PostgreSQL Frequently Asked Questions (FAQ) for PostgreSQL
Last updated: Wed Apr 12 16:03:39 EDT 2006 Last updated: Thu Apr 13 08:20:04 EDT 2006
Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us) Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
@ -270,11 +270,12 @@
Addison-Wesley. Others like The Complete Reference SQL, Groff et al., Addison-Wesley. Others like The Complete Reference SQL, Groff et al.,
McGraw-Hill. McGraw-Hill.
There is also a nice tutorial at There are also many nice tutorials available online:
http://www.intermedia.net/support/sql/sqltut.shtm, at * http://www.intermedia.net/support/sql/sqltut.shtm
http://ourworld.compuserve.com/homepages/graeme_birchall/HTM_COOK.HTM, * http://sqlcourse.com
and at http://sqlcourse.com. * http://www.w3schools.com/sql/default.asp
* http://mysite.verizon.net/Graeme_Birchall/id1.html
1.12) How do I submit a patch or join the development team? 1.12) How do I submit a patch or join the development team?
See the Developer's FAQ. See the Developer's FAQ.
@ -568,9 +569,9 @@
Indexes are normally not used for ORDER BY or to perform joins. A Indexes are normally not used for ORDER BY or to perform joins. A
sequential scan followed by an explicit sort is usually faster than an sequential scan followed by an explicit sort is usually faster than an
index scan of a large table. index scan of a large table. However, LIMIT combined with ORDER BY
However, LIMIT combined with ORDER BY often will use an index because often will use an index because only a small portion of the table is
only a small portion of the table is returned. returned.
If you believe the optimizer is incorrect in choosing a sequential If you believe the optimizer is incorrect in choosing a sequential
scan, use SET enable_seqscan TO 'off' and run query again to see if an scan, use SET enable_seqscan TO 'off' and run query again to see if an

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doc/FAQ_AIX
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From: Zeugswetter Andreas <ZeugswetterA@spardat.at> From: Zeugswetter Andreas <ZeugswetterA@spardat.at>
$Date: 2006/04/13 11:42:35 $ $Date: 2006/05/19 03:34:49 $
On AIX 4.3.2 PostgreSQL compiled with the native IBM compiler xlc On AIX 4.3.2 PostgreSQL compiled with the native IBM compiler xlc
(vac.C 5.0.1) passes all regression tests. Other versions of OS and (vac.C 5.0.1) passes all regression tests. Other versions of OS and

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doc/FAQ_DEV
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Developer's Frequently Asked Questions (FAQ) for PostgreSQL Developer's Frequently Asked Questions (FAQ) for PostgreSQL
Last updated: Wed Mar 1 17:24:48 EST 2006 Last updated: Fri May 5 05:51:42 EDT 2006
Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us) Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
@ -575,7 +575,7 @@ General Questions
* SQL:1999 * SQL:1999
http://www.cse.iitb.ac.in/dbms/Data/Papers-Other/SQL1999/ansi-iso- http://www.cse.iitb.ac.in/dbms/Data/Papers-Other/SQL1999/ansi-iso-
9075-2-1999.pdf 9075-2-1999.pdf
* SQL:2003 http://www.wiscorp.com/sql/sql_2003_standard.zip * SQL:2003 http://www.wiscorp.com/sql_2003_standard.zip
Some SQL standards web pages are: Some SQL standards web pages are:
* http://troels.arvin.dk/db/rdbms/links/#standards * http://troels.arvin.dk/db/rdbms/links/#standards

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doc/src/FAQ/FAQ.html
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alink="#0000ff"> alink="#0000ff">
<H1>Frequently Asked Questions (FAQ) for PostgreSQL</H1> <H1>Frequently Asked Questions (FAQ) for PostgreSQL</H1>
<P>Last updated: Wed Apr 12 16:03:39 EDT 2006</P> <P>Last updated: Thu Apr 13 08:20:04 EDT 2006</P>
<P>Current maintainer: Bruce Momjian (<A href= <P>Current maintainer: Bruce Momjian (<A href=
"mailto:pgman@candle.pha.pa.us">pgman@candle.pha.pa.us</A>) "mailto:pgman@candle.pha.pa.us">pgman@candle.pha.pa.us</A>)
@ -356,14 +356,21 @@
Bowman, Judith S., et al., Addison-Wesley. Others like <I>The Bowman, Judith S., et al., Addison-Wesley. Others like <I>The
Complete Reference SQL</I>, Groff et al., McGraw-Hill.</P> Complete Reference SQL</I>, Groff et al., McGraw-Hill.</P>
<P>There is also a nice tutorial at <A href= <P>There are also many nice tutorials available online:
"http://www.intermedia.net/support/sql/sqltut.shtm">http://www.intermedia.net/support/sql/sqltut.shtm,</A> <UL>
at <A href= <LI> <A href="http://www.intermedia.net/support/sql/sqltut.shtm">http://www.intermedia.net/support/sql/sqltut.shtm</A>
"http://ourworld.compuserve.com/homepages/graeme_birchall/HTM_COOK.HTM"> </LI>
http://ourworld.compuserve.com/homepages/graeme_birchall/HTM_COOK.HTM,</A> <LI>
and at <A href= <A href="http://sqlcourse.com/">http://sqlcourse.com</A>
"http://sqlcourse.com/">http://sqlcourse.com.</A></P> </LI>
<LI>
<A href="http://www.w3schools.com/sql/default.asp">http://www.w3schools.com/sql/default.asp</A>
</LI>
<LI><A href=
"http://mysite.verizon.net/Graeme_Birchall/id1.html">http://mysite.verizon.net/Graeme_Birchall/id1.html</A>
</LI>
</UL>
<H3 id="item1.12">1.12) How do I submit a patch or join the development <H3 id="item1.12">1.12) How do I submit a patch or join the development
team?</H3> team?</H3>
@ -741,7 +748,7 @@ table?</TD><TD>unlimited</TD></TR>
<P>Indexes are normally not used for <SMALL>ORDER BY</SMALL> or to <P>Indexes are normally not used for <SMALL>ORDER BY</SMALL> or to
perform joins. A sequential scan followed by an explicit sort is perform joins. A sequential scan followed by an explicit sort is
usually faster than an index scan of a large table.</P> usually faster than an index scan of a large table.
However, <SMALL>LIMIT</SMALL> combined with <SMALL>ORDER BY</SMALL> However, <SMALL>LIMIT</SMALL> combined with <SMALL>ORDER BY</SMALL>
often will use an index because only a small portion of the table often will use an index because only a small portion of the table
is returned.</P> is returned.</P>