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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >DROP AGGREGATE</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK REV="MADE" HREF="mailto:pgsql-docs@postgresql.org"><LINK REL="HOME" TITLE="PostgreSQL 9.2.24 Documentation" HREF="index.html"><LINK REL="UP" TITLE="SQL Commands" HREF="sql-commands.html"><LINK REL="PREVIOUS" TITLE="DO" HREF="sql-do.html"><LINK REL="NEXT" TITLE="DROP CAST" HREF="sql-dropcast.html"><LINK REL="STYLESHEET" TYPE="text/css" HREF="stylesheet.css"><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=ISO-8859-1"><META NAME="creation" CONTENT="2017-11-06T22:43:11"></HEAD ><BODY CLASS="REFENTRY" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="5" ALIGN="center" VALIGN="bottom" ><A HREF="index.html" >PostgreSQL 9.2.24 Documentation</A ></TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="top" ><A TITLE="DO" HREF="sql-do.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="10%" ALIGN="left" VALIGN="top" ><A HREF="sql-commands.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="60%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="20%" ALIGN="right" VALIGN="top" ><A TITLE="DROP CAST" HREF="sql-dropcast.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SQL-DROPAGGREGATE" ></A >DROP AGGREGATE</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN73275" ></A ><H2 >Name</H2 >DROP AGGREGATE -- remove an aggregate function</DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN73280" ></A ><H2 >Synopsis</H2 ><PRE CLASS="SYNOPSIS" >DROP AGGREGATE [ IF EXISTS ] <TT CLASS="REPLACEABLE" ><I >name</I ></TT > ( <TT CLASS="REPLACEABLE" ><I >argtype</I ></TT > [ , ... ] ) [ CASCADE | RESTRICT ]</PRE ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN73284" ></A ><H2 >Description</H2 ><P > <TT CLASS="COMMAND" >DROP AGGREGATE</TT > removes an existing aggregate function. To execute this command the current user must be the owner of the aggregate function. </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN73288" ></A ><H2 >Parameters</H2 ><P ></P ><DIV CLASS="VARIABLELIST" ><DL ><DT ><TT CLASS="LITERAL" >IF EXISTS</TT ></DT ><DD ><P > Do not throw an error if the aggregate does not exist. A notice is issued in this case. </P ></DD ><DT ><TT CLASS="REPLACEABLE" ><I >name</I ></TT ></DT ><DD ><P > The name (optionally schema-qualified) of an existing aggregate function. </P ></DD ><DT ><TT CLASS="REPLACEABLE" ><I >argtype</I ></TT ></DT ><DD ><P > An input data type on which the aggregate function operates. To reference a zero-argument aggregate function, write <TT CLASS="LITERAL" >*</TT > in place of the list of input data types. </P ></DD ><DT ><TT CLASS="LITERAL" >CASCADE</TT ></DT ><DD ><P > Automatically drop objects that depend on the aggregate function. </P ></DD ><DT ><TT CLASS="LITERAL" >RESTRICT</TT ></DT ><DD ><P > Refuse to drop the aggregate function if any objects depend on it. This is the default. </P ></DD ></DL ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN73317" ></A ><H2 >Examples</H2 ><P > To remove the aggregate function <TT CLASS="LITERAL" >myavg</TT > for type <TT CLASS="TYPE" >integer</TT >: </P><PRE CLASS="PROGRAMLISTING" >DROP AGGREGATE myavg(integer);</PRE ><P></P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN73323" ></A ><H2 >Compatibility</H2 ><P > There is no <TT CLASS="COMMAND" >DROP AGGREGATE</TT > statement in the SQL standard. </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN73327" ></A ><H2 >See Also</H2 ><A HREF="sql-alteraggregate.html" >ALTER AGGREGATE</A >, <A HREF="sql-createaggregate.html" >CREATE AGGREGATE</A ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="sql-do.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="sql-dropcast.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >DO</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="sql-commands.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >DROP CAST</TD ></TR ></TABLE ></DIV ></BODY ></HTML >