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'\" t .\" Title: DROP AGGREGATE .\" Author: The PostgreSQL Global Development Group .\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/> .\" Date: 2017-11-06 .\" Manual: PostgreSQL 9.2.24 Documentation .\" Source: PostgreSQL 9.2.24 .\" Language: English .\" .TH "DROP AGGREGATE" "7" "2017-11-06" "PostgreSQL 9.2.24" "PostgreSQL 9.2.24 Documentation" .\" ----------------------------------------------------------------- .\" * Define some portability stuff .\" ----------------------------------------------------------------- .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .\" http://bugs.debian.org/507673 .\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .ie \n(.g .ds Aq \(aq .el .ds Aq ' .\" ----------------------------------------------------------------- .\" * set default formatting .\" ----------------------------------------------------------------- .\" disable hyphenation .nh .\" disable justification (adjust text to left margin only) .ad l .\" ----------------------------------------------------------------- .\" * MAIN CONTENT STARTS HERE * .\" ----------------------------------------------------------------- .SH "NAME" DROP_AGGREGATE \- remove an aggregate function .\" DROP AGGREGATE .SH "SYNOPSIS" .sp .nf DROP AGGREGATE [ IF EXISTS ] \fIname\fR ( \fIargtype\fR [ , \&.\&.\&. ] ) [ CASCADE | RESTRICT ] .fi .SH "DESCRIPTION" .PP \fBDROP AGGREGATE\fR removes an existing aggregate function\&. To execute this command the current user must be the owner of the aggregate function\&. .SH "PARAMETERS" .PP IF EXISTS .RS 4 Do not throw an error if the aggregate does not exist\&. A notice is issued in this case\&. .RE .PP \fIname\fR .RS 4 The name (optionally schema\-qualified) of an existing aggregate function\&. .RE .PP \fIargtype\fR .RS 4 An input data type on which the aggregate function operates\&. To reference a zero\-argument aggregate function, write * in place of the list of input data types\&. .RE .PP CASCADE .RS 4 Automatically drop objects that depend on the aggregate function\&. .RE .PP RESTRICT .RS 4 Refuse to drop the aggregate function if any objects depend on it\&. This is the default\&. .RE .SH "EXAMPLES" .PP To remove the aggregate function myavg for type integer: .sp .if n \{\ .RS 4 .\} .nf DROP AGGREGATE myavg(integer); .fi .if n \{\ .RE .\} .SH "COMPATIBILITY" .PP There is no \fBDROP AGGREGATE\fR statement in the SQL standard\&. .SH "SEE ALSO" ALTER AGGREGATE (\fBALTER_AGGREGATE\fR(7)), CREATE AGGREGATE (\fBCREATE_AGGREGATE\fR(7))