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Add CREATE/ALTER/DROP OPERATOR FAMILY commands, also COMMENT ON OPERATOR

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FAMILY; and add FAMILY option to CREATE OPERATOR CLASS to allow adding a
class to a pre-existing family.  Per previous discussion.  Man, what a
tedious lot of cutting and pasting ...
This commit is contained in:
Tom Lane
2007-01-23 05:07:18 +00:00
parent 8502b68513
commit a33cf1041f
22 changed files with 1981 additions and 90 deletions
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24
doc/src/sgml/ref/drop_opclass.sgml
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@@ -1,5 +1,5 @@
<!--
$PostgreSQL: pgsql/doc/src/sgml/ref/drop_opclass.sgml,v 1.10 2006/09/16 00:30:18 momjian Exp $
$PostgreSQL: pgsql/doc/src/sgml/ref/drop_opclass.sgml,v 1.11 2007/01/23 05:07:17 tgl Exp $
PostgreSQL documentation
-->
@@ -31,6 +31,13 @@ DROP OPERATOR CLASS [ IF EXISTS ] <replaceable class="PARAMETER">name</replaceab
<command>DROP OPERATOR CLASS</command> drops an existing operator class.
To execute this command you must be the owner of the operator class.
</para>
<para>
<command>DROP OPERATOR CLASS</command> does not drop any of the operators
or functions referenced by the class. If there are any indexes depending
on the operator class, you will need to specify
<literal>CASCADE</> for the drop to complete.
</para>
</refsect1>
<refsect1>
@@ -86,6 +93,20 @@ DROP OPERATOR CLASS [ IF EXISTS ] <replaceable class="PARAMETER">name</replaceab
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>Notes</title>
<para>
<command>DROP OPERATOR CLASS</> will not drop the operator family
containing the class, even if there is nothing else left in the
family (in particular, in the case where the family was implicitly
created by <command>CREATE OPERATOR CLASS</>). An empty operator
family is harmless, but for the sake of tidiness you may wish to
remove the family with <command>DROP OPERATOR FAMILY</>; or perhaps
better, use <command>DROP OPERATOR FAMILY</> in the first place.
</para>
</refsect1>
<refsect1>
<title>Examples</title>
@@ -118,6 +139,7 @@ DROP OPERATOR CLASS widget_ops USING btree;
<simplelist type="inline">
<member><xref linkend="sql-alteropclass" endterm="sql-alteropclass-title"></member>
<member><xref linkend="sql-createopclass" endterm="sql-createopclass-title"></member>
<member><xref linkend="sql-dropopfamily" endterm="sql-dropopfamily-title"></member>
</simplelist>
</refsect1>