From eea3749d2ebbe14fb0f442445955180326bc6546 Mon Sep 17 00:00:00 2001
From: Bruce Momjian <bruce@momjian.us>
Date: Thu, 8 Feb 2007 15:32:11 +0000
Subject: [PATCH] Add lock matrix to documentation.
Teodor Sigaev
---
doc/src/sgml/mvcc.sgml | 119 ++++++++++++++++++++++++++++++++++++++++-
1 file changed, 118 insertions(+), 1 deletion(-)
diff --git a/doc/src/sgml/mvcc.sgml b/doc/src/sgml/mvcc.sgml
index 02161a3a4c0..0fcc984cd66 100644
--- a/doc/src/sgml/mvcc.sgml
+++ b/doc/src/sgml/mvcc.sgml
@@ -1,4 +1,4 @@
-<!-- $PostgreSQL: pgsql/doc/src/sgml/mvcc.sgml,v 2.66 2007/01/31 20:56:18 momjian Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/mvcc.sgml,v 2.67 2007/02/08 15:32:11 momjian Exp $ -->
<chapter id="mvcc">
<title>Concurrency Control</title>
@@ -741,6 +741,123 @@ SELECT SUM(value) FROM mytab WHERE class = 2;
releases locks acquired within it.
</para>
+ <table tocentry="1" id="table-lock-compatibility">
+ <title> Compatibility of lock modes</title>
+ <tgroup cols="9">
+ <colspec colnum="1" colwidth="1*">
+ <colspec colnum="2" colwidth="1*">
+ <colspec colnum="3" colwidth="1*">
+ <colspec colnum="4" colwidth="1*">
+ <colspec colnum="5" colwidth="1*">
+ <colspec colnum="6" colwidth="1*">
+ <colspec colnum="7" colwidth="1*">
+ <colspec colnum="8" colwidth="1*">
+ <colspec colnum="9" colwidth="1*">
+ <thead>
+ <row>
+ <entry>Modes</entry>
+ <entry>AS</entry>
+ <entry>RS</entry>
+ <entry>RE</entry>
+ <entry>SUE</entry>
+ <entry>S</entry>
+ <entry>SRE</entry>
+ <entry>E</entry>
+ <entry>AE</entry>
+ </row>
+ </thead>
+ <tbody>
+ <row>
+ <entry>AS</entry>
+ <entry align="center">Y</entry>
+ <entry align="center">Y</entry>
+ <entry align="center">Y</entry>
+ <entry align="center">Y</entry>
+ <entry align="center">Y</entry>
+ <entry align="center">Y</entry>
+ <entry align="center">Y</entry>
+ <entry align="center">N</entry>
+ </row>
+ <row>
+ <entry>RS</entry>
+ <entry align="center">Y</entry>
+ <entry align="center">Y</entry>
+ <entry align="center">Y</entry>
+ <entry align="center">Y</entry>
+ <entry align="center">Y</entry>
+ <entry align="center">Y</entry>
+ <entry align="center">N</entry>
+ <entry align="center">N</entry>
+ </row>
+ <row>
+ <entry>RE</entry>
+ <entry align="center">Y</entry>
+ <entry align="center">Y</entry>
+ <entry align="center">Y</entry>
+ <entry align="center">Y</entry>
+ <entry align="center">N</entry>
+ <entry align="center">N</entry>
+ <entry align="center">N</entry>
+ <entry align="center">N</entry>
+ </row>
+ <row>
+ <entry>SUE</entry>
+ <entry align="center">Y</entry>
+ <entry align="center">Y</entry>
+ <entry align="center">Y</entry>
+ <entry align="center">N</entry>
+ <entry align="center">N</entry>
+ <entry align="center">N</entry>
+ <entry align="center">N</entry>
+ <entry align="center">N</entry>
+ </row>
+ <row>
+ <entry>S</entry>
+ <entry align="center">Y</entry>
+ <entry align="center">Y</entry>
+ <entry align="center">N</entry>
+ <entry align="center">N</entry>
+ <entry align="center">Y</entry>
+ <entry align="center">N</entry>
+ <entry align="center">N</entry>
+ <entry align="center">N</entry>
+ </row>
+ <row>
+ <entry>SRE</entry>
+ <entry align="center">Y</entry>
+ <entry align="center">Y</entry>
+ <entry align="center">N</entry>
+ <entry align="center">N</entry>
+ <entry align="center">N</entry>
+ <entry align="center">N</entry>
+ <entry align="center">N</entry>
+ <entry align="center">N</entry>
+ </row>
+ <row>
+ <entry>E</entry>
+ <entry align="center">Y</entry>
+ <entry align="center">N</entry>
+ <entry align="center">N</entry>
+ <entry align="center">N</entry>
+ <entry align="center">N</entry>
+ <entry align="center">N</entry>
+ <entry align="center">N</entry>
+ <entry align="center">N</entry>
+ </row>
+ <row>
+ <entry>AE</entry>
+ <entry align="center">N</entry>
+ <entry align="center">N</entry>
+ <entry align="center">N</entry>
+ <entry align="center">N</entry>
+ <entry align="center">N</entry>
+ <entry align="center">N</entry>
+ <entry align="center">N</entry>
+ <entry align="center">N</entry>
+ </row>
+ </tbody>
+ </tgroup>
+ </table>
</sect2>
<sect2 id="locking-rows">
--
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