From ade95052f859c4024af415a09cf2b1fdfa95f764 Mon Sep 17 00:00:00 2001
From: Bruce Momjian <bruce@momjian.us>
Date: Fri, 14 Apr 2000 23:12:29 +0000
Subject: [PATCH] Update set constraints man page
---
doc/src/sgml/ref/set.sgml | 19 +++++++++----------
1 file changed, 9 insertions(+), 10 deletions(-)
diff --git a/doc/src/sgml/ref/set.sgml b/doc/src/sgml/ref/set.sgml
index 0628ed673a6..172151eddd3 100644
--- a/doc/src/sgml/ref/set.sgml
+++ b/doc/src/sgml/ref/set.sgml
@@ -1,5 +1,5 @@
<!--
-$Header: /cvsroot/pgsql/doc/src/sgml/ref/set.sgml,v 1.40 2000/04/14 15:17:28 thomas Exp $
+$Header: /cvsroot/pgsql/doc/src/sgml/ref/set.sgml,v 1.41 2000/04/14 23:12:29 momjian Exp $
Postgres documentation
-->
@@ -269,10 +269,9 @@ SELECT setseed(<replaceable>value</replaceable>);
<term>CONSTRAINT</term>
<listitem>
<para>
- SET CONSTRAINTS is the SQL3 specified command to change the
- default behaviour of constraints with respect to deferring in the current
- transaction. Allowed parameters are:
-
+ SET CONSTRAINTS controls the frequency of foreign key
+ constratint checking in the current transaction. Allowed
+ parameters are:
<variablelist>
<varlistentry>
<term><replaceable class="parameter">constraintlist</replaceable></term>
@@ -296,11 +295,11 @@ SELECT setseed(<replaceable>value</replaceable>);
</para>
<para>
- In deferred mode, the actual check of the constraint is held
- back until either its mode is explicitly set to <option>IMMEDIATE</option>,
- or until COMMIT. This is actually only done for foreign key
- constraints, so it does not apply to UNIQUE or other
- constraints.
+ In <option>DEFERRED</option> mode, foreign key constraints
+ marked as <option>DEFERRABLE</option> are checked only at
+ transaction commit.
+ In <option>IMMEDIATE</option> mode, foreign key constraints
+ are checked at the end of each query.
</para>
</listitem>
</varlistentry>
--
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