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authorBruce Momjian <bruce@momjian.us>2006-11-21 03:44:55 +0000
committerBruce Momjian <bruce@momjian.us>2006-11-21 03:44:55 +0000
commit150328cd61f5925df80fbf52f6f0208fa2c93a7e (patch)
tree298c59393c2c949e7f266fb316ab49770ad28336
parent414c7a537e6c8a7916700dd22ef78e6ffea39e2a (diff)
downloadpostgresql-150328cd61f5925df80fbf52f6f0208fa2c93a7e.tar.gz
postgresql-150328cd61f5925df80fbf52f6f0208fa2c93a7e.zip
I noticed that the Partitioning section of the docs has *two* sections
of caveats in different places, but close together. One called caveats, one not. That looks like it just led to somebody not reading some appropriate caveats in the second group of caveats (on -admin). Simon Riggs
-rw-r--r--doc/src/sgml/ddl.sgml64
1 files changed, 32 insertions, 32 deletions
diff --git a/doc/src/sgml/ddl.sgml b/doc/src/sgml/ddl.sgml
index fbf4fda64bd..8a3b2ebc7f3 100644
--- a/doc/src/sgml/ddl.sgml
+++ b/doc/src/sgml/ddl.sgml
@@ -1,4 +1,4 @@
-<!-- $PostgreSQL: pgsql/doc/src/sgml/ddl.sgml,v 1.67 2006/10/23 18:10:30 petere Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/ddl.sgml,v 1.68 2006/11/21 03:44:55 momjian Exp $ -->
<chapter id="ddl">
<title>Data Definition</title>
@@ -2657,36 +2657,6 @@ ALTER TABLE measurement_y2006m02 INHERIT measurement;
</para>
</sect2>
- <sect2 id="ddl-partitioning-caveats">
- <title>Caveats</title>
-
- <para>
- The following caveats apply to partitioned tables:
- <itemizedlist>
- <listitem>
- <para>
- There is currently no way to verify that all of the
- <literal>CHECK</literal> constraints are mutually
- exclusive. Care is required by the database designer.
- </para>
- </listitem>
-
- <listitem>
- <para>
- There is currently no simple way to specify that rows must not be
- inserted into the master table. A <literal>CHECK (false)</literal>
- constraint on the master table would be inherited by all child
- tables, so that cannot be used for this purpose. One possibility is
- to set up an <literal>ON INSERT</> trigger on the master table that
- always raises an error. (Alternatively, such a trigger could be
- used to redirect the data into the proper child table, instead of
- using a set of rules as suggested above.)
- </para>
- </listitem>
- </itemizedlist>
- </para>
- </sect2>
-
<sect2 id="ddl-partitioning-constraint-exclusion">
<title>Partitioning and Constraint Exclusion</title>
@@ -2768,9 +2738,39 @@ EXPLAIN SELECT count(*) FROM measurement WHERE logdate &gt;= DATE '2006-01-01';
a large part of the partition or just a small part. An index will
be helpful in the latter case but not the former.
</para>
+ </sect2>
+
+ <sect2 id="ddl-partitioning-caveats">
+ <title>Caveats</title>
+
+ <para>
+ The following caveats apply to partitioned tables:
+ <itemizedlist>
+ <listitem>
+ <para>
+ There is currently no way to verify that all of the
+ <literal>CHECK</literal> constraints are mutually
+ exclusive. Care is required by the database designer.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ There is currently no simple way to specify that rows must not be
+ inserted into the master table. A <literal>CHECK (false)</literal>
+ constraint on the master table would be inherited by all child
+ tables, so that cannot be used for this purpose. One possibility is
+ to set up an <literal>ON INSERT</> trigger on the master table that
+ always raises an error. (Alternatively, such a trigger could be
+ used to redirect the data into the proper child table, instead of
+ using a set of rules as suggested above.)
+ </para>
+ </listitem>
+ </itemizedlist>
+ </para>
<para>
- The following caveats apply:
+ The following caveats apply to constraint exclusion:
<itemizedlist>
<listitem>