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Postgres FD Implementation
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Abuhujair Javed
Postgres FD Implementation
Commits
bc29b06b
Commit
bc29b06b
authored
23 years ago
by
Bruce Momjian
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Add mention of index on foreign key for frequently updated primary key
tables.
parent
a4ee277e
REL_14_STABLE
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doc/src/sgml/ref/create_table.sgml
doc/src/sgml/ref/create_table.sgml
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doc/src/sgml/ref/create_table.sgml
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bc29b06b
<!--
$Header: /cvsroot/pgsql/doc/src/sgml/ref/create_table.sgml,v 1.5
0 2001/12/08 03:24:35 thomas
Exp $
$Header: /cvsroot/pgsql/doc/src/sgml/ref/create_table.sgml,v 1.5
1 2002/01/03 06:26:22 momjian
Exp $
PostgreSQL documentation
-->
...
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@@ -437,6 +437,13 @@ and <replaceable class="PARAMETER">table_constraint</replaceable> is:
</varlistentry>
</variablelist>
</para>
<para>
If primary key column is updated frequently, it may be wise to
add an index to the <literal>REFERENCES</literal> column so that
<literal>NO ACTION</literal> and <literal>CASCADE</literal>
actions associated with the <literal>REFERENCES</literal>
column can be more efficiently performed.
</para>
</listitem>
</varlistentry>
...
...
@@ -472,6 +479,8 @@ and <replaceable class="PARAMETER">table_constraint</replaceable> is:
</listitem>
</varlistentry>
</variablelist>
</refsect1>
...
...
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