174 lines
3.8 KiB
Plaintext
174 lines
3.8 KiB
Plaintext
<REFENTRY ID="SQL-DROPAGGREGATE">
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<REFMETA>
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<REFENTRYTITLE>
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DROP AGGREGATE
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</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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Removes the definition of an aggregate function
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</REFPURPOSE>
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<REFSYNOPSISDIV>
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<REFSYNOPSISDIVINFO>
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<DATE>1998-04-15</DATE>
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</REFSYNOPSISDIVINFO>
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<SYNOPSIS>
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DROP AGGREGATE <REPLACEABLE CLASS="PARAMETER">name</REPLACEABLE> <REPLACEABLE CLASS="PARAMETER">type</REPLACEABLE>
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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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</PARA>
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<VARIABLELIST>
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<VARLISTENTRY>
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<TERM>
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<replaceable class="parameter">name</replaceable>
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</TERM>
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<LISTITEM>
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<PARA>
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The name 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>
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<replaceable class="parameter">type</replaceable>
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</TERM>
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<LISTITEM>
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<PARA>
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The type of an existing aggregate function.
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(Refer to the <citetitle>PostgreSQL User's Guide</citetitle> for
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further information about data types).
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<comment>This should become a cross-reference rather than a
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hard-coded chapter number</comment>
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</PARA>
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</LISTITEM>
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</VARLISTENTRY>
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</variablelist>
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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>
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<ReturnValue>DROP</ReturnValue>
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</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>
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<ReturnValue>WARN RemoveAggregate: aggregate '<replaceable class="parameter">name</replaceable>' for '<replaceable class="parameter">type</replaceable>' does not exist</ReturnValue>
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</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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</VARIABLELIST>
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</REFSECT2>
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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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<PARA>
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<command>DROP AGGREGATE</command> will remove all references to 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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</PARA>
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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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The <command>DROP AGGREGATE</command> statement is a
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<productname>Postgres</productname>
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language extension.
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</PARA>
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<PARA>
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Refer to the <command>CREATE AGGREGATE</command> statement to
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create aggregate functions.
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</PARA>
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</REFSECT2>
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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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<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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</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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<PARA>
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</PARA>
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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 DROP AGGREGATE statement in <acronym>SQL92</acronym>.
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</PARA>
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</refsect2>
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</refsect1>
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</REFENTRY>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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sgml-parent-document:nil
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sgml-default-dtd-file:"../reference.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:"/usr/lib/sgml/catalog"
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sgml-local-ecat-files:nil
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End:
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-->
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