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Add mention of SET CONSTRAINT and CREATE CONSTRAINT TRIGGER.
This commit is contained in:
Thomas G. Lockhart
@ -1,5 +1,5 @@
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<!--
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$Header: /cvsroot/pgsql/doc/src/sgml/ref/allfiles.sgml,v 1.17 2000/04/08 05:11:03 tgl Exp $
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$Header: /cvsroot/pgsql/doc/src/sgml/ref/allfiles.sgml,v 1.18 2000/04/14 15:17:28 thomas Exp $
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Postgres documentation
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Complete list of usable sgml source files in this directory.
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-->
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@ -50,6 +50,7 @@ Complete list of usable sgml source files in this directory.
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<!entity commit system "commit.sgml">
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<!entity copyTable system "copy.sgml">
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<!entity createAggregate system "create_aggregate.sgml">
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<!entity createConstraint system "create_constraint.sgml">
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<!entity createDatabase system "create_database.sgml">
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<!entity createFunction system "create_function.sgml">
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<!entity createGroup system "create_group.sgml">
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@ -1,5 +1,5 @@
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<!--
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$Header: /cvsroot/pgsql/doc/src/sgml/ref/Attic/commands.sgml,v 1.24 2000/04/08 05:11:03 tgl Exp $
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$Header: /cvsroot/pgsql/doc/src/sgml/ref/Attic/commands.sgml,v 1.25 2000/04/14 15:17:28 thomas Exp $
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Postgres documentation
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-->
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@ -24,6 +24,7 @@ Postgres documentation
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&commit;
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©Table;
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&createAggregate;
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&createConstraint;
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&createDatabase;
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&createFunction;
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&createGroup;
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150
doc/src/sgml/ref/create_constraint.sgml
Normal file
150
doc/src/sgml/ref/create_constraint.sgml
Normal file
@ -0,0 +1,150 @@
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<!--
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$Header: /cvsroot/pgsql/doc/src/sgml/ref/create_constraint.sgml,v 1.1 2000/04/14 15:17:28 thomas Exp $
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Postgres documentation
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-->
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<refentry id="SQL-CREATECONSTRAINT">
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<refmeta>
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<refentrytitle id="sql-createconstraint-title">
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CREATE CONSTRAINT TRIGGER
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</refentrytitle>
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<refmiscinfo>SQL - Language Statements</refmiscinfo>
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</refmeta>
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<refnamediv>
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<refname>
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CREATE CONSTRAINT TRIGGER
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</refname>
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<refpurpose>
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Create a trigger to support a constraint
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</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<refsynopsisdivinfo>
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<date>2000-04-13</date>
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</refsynopsisdivinfo>
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<synopsis>
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CREATE CONSTRAINT TRIGGER <replaceable class="parameter">name</replaceable>
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AFTER <replaceable class="parameter">events</replaceable> ON
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<replaceable class="parameter">relation</replaceable> <replaceable class="parameter">constraint</replaceable> <replaceable class="parameter">attributes</replaceable>
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FOR EACH ROW EXECUTE PROCEDURE <replaceable class="parameter">func</replaceable> '(' <replaceable class="parameter">args</replaceable> ')'
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</synopsis>
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<refsect2 id="R2-SQL-CREATECONSTRAINT-1">
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<title>
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Inputs
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</title>
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<para>
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<variablelist>
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<varlistentry>
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<term><replaceable class="PARAMETER">name</replaceable></term>
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<listitem>
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<para>
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The name of the constraint trigger.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><replaceable class="PARAMETER">events</replaceable></term>
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<listitem>
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<para>
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The event categories for which this trigger should be fired.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><replaceable class="PARAMETER">relation</replaceable></term>
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<listitem>
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<para>
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Table name of the triggering relation.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><replaceable class="PARAMETER">constraint</replaceable></term>
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<listitem>
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<para>
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Actual onstraint specification.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><replaceable class="PARAMETER">attributes</replaceable></term>
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<listitem>
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<para>
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Contraint attributes.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><replaceable class="PARAMETER">func</replaceable>(<replaceable class="PARAMETER">args</replaceable>)</term>
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<listitem>
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<para>
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Function to call as part of the trigger processing.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</para>
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</refsect2>
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<refsect2 id="R2-SQL-CREATECONSTRAINT-2">
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<title>
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Outputs
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</title>
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<para>
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<variablelist>
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<varlistentry>
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<term><computeroutput>
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CREATE CONSTRAINT
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</computeroutput></term>
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<listitem>
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<para>
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Message returned if successful.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</para>
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</refsect2>
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</refsynopsisdiv>
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<refsect1 id="R1-SQL-CREATECONSTRAINT-1">
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<title>
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Description
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</title>
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<para>
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<command>CREATE CONSTRAINT TRIGGER</command> is used from inside of
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<command>CREATE/ALTER TABLE</command> and by
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<application>pg_dump</application> to create the special triggers for
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referential integrity.
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</para>
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<para>
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It is not intended for general use.
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</para>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:nil
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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sgml-parent-document:nil
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sgml-default-dtd-file:"../reference.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:"/usr/lib/sgml/catalog"
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sgml-local-ecat-files:nil
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End:
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-->
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@ -1,5 +1,5 @@
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<!--
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$Header: /cvsroot/pgsql/doc/src/sgml/ref/set.sgml,v 1.39 2000/04/11 17:23:35 momjian Exp $
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$Header: /cvsroot/pgsql/doc/src/sgml/ref/set.sgml,v 1.40 2000/04/14 15:17:28 thomas Exp $
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Postgres documentation
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-->
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@ -24,6 +24,7 @@ Postgres documentation
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</refsynopsisdivinfo>
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<synopsis>
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SET <replaceable class="PARAMETER">variable</replaceable> { TO | = } { <replaceable class="PARAMETER">value</replaceable> | '<replaceable class="PARAMETER">value</replaceable>' | DEFAULT }
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SET CONSTRAINTS {ALL | <replaceable class="parameter">constraintlist</replaceable>} <replaceable>mode</replaceable>
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SET TIME ZONE { '<replaceable class="PARAMETER">timezone</replaceable>' | LOCAL | DEFAULT }
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SET TRANSACTION ISOLATION LEVEL { READ COMMITTED | SERIALIZABLE }
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</synopsis>
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@ -92,7 +93,7 @@ SET TRANSACTION ISOLATION LEVEL { READ COMMITTED | SERIALIZABLE }
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</varlistentry>
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<varlistentry>
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<term>DateStyle</term>
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<term>DATESTYLE</term>
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<listitem>
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<para>
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Set the date/time representation style. Affects the output format,
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@ -202,7 +203,7 @@ SET TRANSACTION ISOLATION LEVEL { READ COMMITTED | SERIALIZABLE }
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</varlistentry>
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<varlistentry>
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<term>Seed</term>
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<term>SEED</term>
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<listitem>
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<para>
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Sets the internal seed for the random number generator.
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@ -243,14 +244,14 @@ SELECT setseed(<replaceable>value</replaceable>);
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<term>SERVER_ENCODING</term>
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<listitem>
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<para>
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Sets the multi-byte server encoding
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Sets the multi-byte server encoding to:
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<variablelist>
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<varlistentry>
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<term><replaceable class="parameter">value</replaceable></term>
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<listitem>
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<para>
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Sets the multi-byte server encoding.
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The identifying value for the server encoding.
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</para>
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</listitem>
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</varlistentry>
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@ -265,6 +266,47 @@ SELECT setseed(<replaceable>value</replaceable>);
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</varlistentry>
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<varlistentry>
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<term>CONSTRAINT</term>
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<listitem>
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<para>
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SET CONSTRAINTS is the SQL3 specified command to change the
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default behaviour of constraints with respect to deferring in the current
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transaction. Allowed parameters are:
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<variablelist>
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<varlistentry>
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<term><replaceable class="parameter">constraintlist</replaceable></term>
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<listitem>
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<para>
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Comma separated list of deferrable constraint names.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><replaceable class="parameter">mode</replaceable></term>
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<listitem>
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<para>
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The constraint mode. Allowed values are
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<option>DEFERRED</option> and <option>IMMEDIATE</option>.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</para>
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<para>
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In deferred mode, the actual check of the constraint is held
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back until either its mode is explicitly set to <option>IMMEDIATE</option>,
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or until COMMIT. This is actually only done for foreign key
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constraints, so it does not apply to UNIQUE or other
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constraints.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>TIME ZONE</term>
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<term>TIMEZONE</term>
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<listitem>
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<para>
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@ -862,7 +904,7 @@ SET VARIABLE
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</computeroutput></term>
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<listitem>
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<para>
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Message returned if successfully.
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Message returned if successful.
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</para>
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</listitem>
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</varlistentry>
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