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Last round of reference page editing.
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‎doc/src/sgml/ref/declare.sgml

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‎doc/src/sgml/ref/drop_aggregate.sgml

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<!--
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$Header: /cvsroot/pgsql/doc/src/sgml/ref/drop_aggregate.sgml,v 1.21 2003/03/25 16:15:39 petere Exp $
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$Header: /cvsroot/pgsql/doc/src/sgml/ref/drop_aggregate.sgml,v 1.22 2003/05/04 02:23:16 petere Exp $
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PostgreSQL documentation
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-->
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@@ -8,167 +8,126 @@ PostgreSQL documentation
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<refentrytitle id="SQL-DROPAGGREGATE-TITLE">DROP AGGREGATE</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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DROP AGGREGATE
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</refname>
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<refpurpose>
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remove a user-defined aggregate function
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</refpurpose>
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<refname>DROP AGGREGATE</refname>
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<refpurpose>remove a user-defined aggregate function</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<refsynopsisdivinfo>
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<date>1999-07-20</date>
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</refsynopsisdivinfo>
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<synopsis>
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<synopsis>
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DROP AGGREGATE <replaceable class="PARAMETER">name</replaceable> ( <replaceable class="PARAMETER">type</replaceable> ) [ CASCADE | RESTRICT ]
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</synopsis>
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<refsect2 id="R2-SQL-DROPAGGREGATE-1">
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<refsect2info>
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<date>1998-04-15</date>
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</refsect2info>
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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 (optionally schema-qualified) of an existing aggregate function.
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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">type</replaceable></term>
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<listitem>
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<para>
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The input data type of the aggregate function,
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or <literal>*</literal> if the function accepts any input type.
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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>CASCADE</term>
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<listitem>
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<para>
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Automatically drop objects that depend on the aggregate.
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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>RESTRICT</term>
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<listitem>
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<para>
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Refuse to drop the aggregate if there are any dependent objects.
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This is the default.
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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-DROPAGGREGATE-2">
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<refsect2info>
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<date>1998-04-15</date>
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</refsect2info>
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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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DROP AGGREGATE
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</computeroutput></term>
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<listitem>
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<para>
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Message returned if the command is successful.
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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><computeroutput>
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ERROR: RemoveAggregate: aggregate '<replaceable class="parameter">name</replaceable>' for type <replaceable class="parameter">type</replaceable> does not exist
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</computeroutput></term>
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<listitem>
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<para>
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This message occurs if the aggregate function specified does not
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exist in the database.
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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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</synopsis>
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</refsynopsisdiv>
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<refsect1 id="R1-SQL-DROPAGGREGATE-1">
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<refsect1info>
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<date>1998-04-15</date>
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</refsect1info>
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<title>
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Description
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</title>
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<refsect1>
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<title>Description</title>
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<para>
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<command>DROP AGGREGATE</command> will delete an existing
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aggregate definition. To execute this command the current
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user must be the owner of the aggregate.
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aggregate function. To execute this command the current
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user must be the owner of the aggregate function.
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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 aggregate function.
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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">type</replaceable></term>
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<listitem>
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<para>
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The argument data type of the aggregate function, or
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<literal>*</literal> if the function accepts any data type.
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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><literal>CASCADE</literal></term>
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<listitem>
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<para>
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Automatically drop objects that depend on the aggregate function.
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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><literal>RESTRICT</literal></term>
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<listitem>
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<para>
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Refuse to drop the aggregate function if any objects depend on
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it. This is the default.
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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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<refsect2 id="R2-SQL-DROPAGGREGATE-3">
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<refsect2info>
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<date>1998-04-15</date>
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</refsect2info>
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<title>
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Notes
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</title>
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<para>
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Use
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<xref linkend="sql-createaggregate" endterm="sql-createaggregate-title">
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to create aggregate functions.
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</para>
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</refsect2>
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<refsect1>
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<title>Diagnostics</title>
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<variablelist>
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<varlistentry>
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<term><computeroutput>DROP AGGREGATE</computeroutput></term>
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<listitem>
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<para>
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Message returned if the command was successful.
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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><computeroutput>ERROR: RemoveAggregate: aggregate '<replaceable class="parameter">name</replaceable>' for type <replaceable class="parameter">type</replaceable> does not exist</computeroutput></term>
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<listitem>
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<para>
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This message is returned if the specified aggregate function
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does not exist.
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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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To remove the aggregate function <literal>myavg</literal> for type
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<type>integer</type>:
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<programlisting>
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DROP AGGREGATE myavg(integer);
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</programlisting>
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</para>
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</refsect1>
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<refsect1 id="R1-SQL-DROPAGGREGATE-2">
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<title>
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Usage
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</title>
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<refsect1>
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<title>Compatibility</title>
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<para>
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To remove the <literal>myavg</literal> aggregate for type
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<literal>int4</literal>:
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There is no <command>DROP AGGREGATE</command> statement in the SQL
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standard.
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</para>
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<programlisting>
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DROP AGGREGATE myavg(int4);
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</programlisting>
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</refsect1>
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<refsect1 id="R1-SQL-DROPAGGREGATE-3">
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<title>
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Compatibility
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</title>
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<refsect2 id="R2-SQL-DROPAGGREGATE-4">
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<refsect2info>
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<date>1998-04-15</date>
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</refsect2info>
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<title>
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SQL92
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</title>
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<para>
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There is no <command>DROP AGGREGATE</command> statement
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in <acronym>SQL92</acronym>; the statement is a
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<productname>PostgreSQL</productname>
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language extension.
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</para>
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</refsect2>
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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-createaggregate" endterm="sql-createaggregate-title"></member>
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</simplelist>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file

‎doc/src/sgml/ref/drop_cast.sgml

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<!-- $Header: /cvsroot/pgsql/doc/src/sgml/ref/drop_cast.sgml,v 1.2 2002/08/11 17:44:12 petere Exp $ -->
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<!-- $Header: /cvsroot/pgsql/doc/src/sgml/ref/drop_cast.sgml,v 1.3 2003/05/04 02:23:16 petere Exp $ -->
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<refentry id="SQL-DROPCAST">
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<refmeta>
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<refsynopsisdiv>
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<synopsis>
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DROP CAST (<replaceable>sourcetype</replaceable> AS <replaceable>targettype</replaceable>)
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[ CASCADE | RESTRICT ]
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DROP CAST (<replaceable>sourcetype</replaceable> AS <replaceable>targettype</replaceable>) [ CASCADE | RESTRICT ]
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</synopsis>
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</refsynopsisdiv>
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data type. These are the same privileges that are required to
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create a cast.
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</para>
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</refsect1>
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<variablelist>
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<title>Parameters</title>
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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>sourcetype</replaceable></term>
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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 id="sql-dropcast-notes">
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<title>Notes</title>
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<para>
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Use <command>CREATE CAST</command> to create user-defined casts.
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</para>
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</refsect1>
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<refsect1 id="sql-dropcast-examples">
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<title>Examples</title>
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<para>
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To drop the cast from type <type>text</type> to type <type>int</type>:
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<programlisting>
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DROP CAST (text AS int4);
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DROP CAST (text AS int);
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</programlisting>
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</para>
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</refsect1>
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<refsect1 id="sql-dropcast-compat">
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<title>Compatibility</title>
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<para>
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The <command>DROP CAST</command> command conforms to SQL99.
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The <command>DROP CAST</command> command conforms to the SQL standard.
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</para>
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</refsect1>
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<refsect1 id="sql-dropcast-seealso">
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<refsect1>
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<title>See Also</title>
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<para>
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<xref linkend="sql-createcast" endterm="sql-createcast-title">
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</para>
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<simplelist type="inline">
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<member><xref linkend="sql-createcast" endterm="sql-createcast-title"></member>
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</simplelist>
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</refsect1>
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</refentry>

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