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Add a couple of cross-references to the docs about enum types, per a

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recent gripe that the info is hard to find.
This commit is contained in:
Tom Lane 2008-12-19 01:34:19 +00:00
parent 382af3a954
commit e32014d85d
1 changed files with 12 additions and 1 deletions
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13
doc/src/sgml/datatype.sgml
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@ -1,4 +1,4 @@
<!-- $PostgreSQL: pgsql/doc/src/sgml/datatype.sgml,v 1.234 2008/11/11 02:42:31 tgl Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/datatype.sgml,v 1.235 2008/12/19 01:34:19 tgl Exp $ -->
<chapter id="datatype">
<title id="datatype-title">Data Types</title>
@ -2742,6 +2742,10 @@ SELECT * FROM test1 WHERE a;
<secondary>enumerated (enum)</secondary>
</indexterm>
<indexterm zone="datatype-enum">
<primary>enumerated types</primary>
</indexterm>
<para>
Enumerated (enum) types are data types that
are comprised of a static, predefined set of values with a
@ -2886,6 +2890,13 @@ SELECT person.name, holidays.num_weeks FROM person, holidays
Spaces in the labels are significant, too.
</para>
<para>
The translations from internal enum values to textual labels are
kept in the system catalog
<link linkend="catalog-pg-enum"><structname>pg_enum</structname></link>.
Querying this catalog directly can be useful.
</para>
</sect2>
</sect1>