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.\" 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"
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.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))
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