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120 lines
3.3 KiB
Plaintext
120 lines
3.3 KiB
Plaintext
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$PostgreSQL: pgsql/doc/src/sgml/ref/alter_operator.sgml,v 1.4 2008/11/14 10:22:45 petere Exp $
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PostgreSQL documentation
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-->
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<refentry id="SQL-ALTEROPERATOR">
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<refmeta>
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<refentrytitle id="SQL-ALTEROPERATOR-TITLE">ALTER OPERATOR</refentrytitle>
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<manvolnum>7</manvolnum>
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<refmiscinfo>SQL - Language Statements</refmiscinfo>
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</refmeta>
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<refnamediv>
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<refname>ALTER OPERATOR</refname>
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<refpurpose>change the definition of an operator</refpurpose>
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</refnamediv>
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<indexterm zone="sql-alteroperator">
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<primary>ALTER OPERATOR</primary>
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</indexterm>
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<refsynopsisdiv>
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<synopsis>
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ALTER OPERATOR <replaceable>name</replaceable> ( { <replaceable>lefttype</replaceable> | NONE } , { <replaceable>righttype</replaceable> | NONE } ) OWNER TO <replaceable>newowner</replaceable>
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</synopsis>
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</refsynopsisdiv>
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<refsect1>
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<title>Description</title>
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<para>
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<command>ALTER OPERATOR</command> changes the definition of
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an operator. The only currently available functionality is to change the
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owner of the operator.
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</para>
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<para>
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You must own the operator to use <command>ALTER OPERATOR</>.
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To alter the owner, you must also be a direct or indirect member of the new
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owning role, and that role must have <literal>CREATE</literal> privilege on
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the operator's schema. (These restrictions enforce that altering the owner
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doesn't do anything you couldn't do by dropping and recreating the operator.
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However, a superuser can alter ownership of any operator anyway.)
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</para>
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</refsect1>
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<refsect1>
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<title>Parameters</title>
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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 (optionally schema-qualified) of an existing operator.
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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">lefttype</replaceable></term>
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<listitem>
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<para>
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The data type of the operator's left operand; write
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<literal>NONE</literal> if the operator has no left operand.
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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">righttype</replaceable></term>
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<listitem>
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<para>
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The data type of the operator's right operand; write
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<literal>NONE</literal> if the operator has no right operand.
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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">newowner</replaceable></term>
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<listitem>
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<para>
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The new owner of the operator.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>Examples</title>
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<para>
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Change the owner of a custom operator <literal>a @@ b</literal> for type <type>text</type>:
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<programlisting>
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ALTER OPERATOR @@ (text, text) OWNER TO joe;
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</programlisting>
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</para>
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</refsect1>
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<refsect1>
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<title>Compatibility</title>
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<para>
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There is no <command>ALTER OPERATOR</command> statement in
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the SQL standard.
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</para>
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</refsect1>
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<refsect1>
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<title>See Also</title>
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<simplelist type="inline">
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<member><xref linkend="sql-createoperator" endterm="sql-createoperator-title"></member>
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<member><xref linkend="sql-dropoperator" endterm="sql-dropoperator-title"></member>
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</simplelist>
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</refsect1>
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</refentry>
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