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'\" t .\" Title: ALTER 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 "ALTER 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" ALTER_AGGREGATE \- change the definition of an aggregate function .\" ALTER AGGREGATE .SH "SYNOPSIS" .sp .nf ALTER AGGREGATE \fIname\fR ( \fIargtype\fR [ , \&.\&.\&. ] ) RENAME TO \fInew_name\fR ALTER AGGREGATE \fIname\fR ( \fIargtype\fR [ , \&.\&.\&. ] ) OWNER TO \fInew_owner\fR ALTER AGGREGATE \fIname\fR ( \fIargtype\fR [ , \&.\&.\&. ] ) SET SCHEMA \fInew_schema\fR .fi .SH "DESCRIPTION" .PP \fBALTER AGGREGATE\fR changes the definition of an aggregate function\&. .PP You must own the aggregate function to use \fBALTER AGGREGATE\fR\&. To change the schema of an aggregate function, you must also have CREATE privilege on the new schema\&. To alter the owner, you must also be a direct or indirect member of the new owning role, and that role must have CREATE privilege on the aggregate function\*(Aqs schema\&. (These restrictions enforce that altering the owner doesn\*(Aqt do anything you couldn\*(Aqt do by dropping and recreating the aggregate function\&. However, a superuser can alter ownership of any aggregate function anyway\&.) .SH "PARAMETERS" .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 \fInew_name\fR .RS 4 The new name of the aggregate function\&. .RE .PP \fInew_owner\fR .RS 4 The new owner of the aggregate function\&. .RE .PP \fInew_schema\fR .RS 4 The new schema for the aggregate function\&. .RE .SH "EXAMPLES" .PP To rename the aggregate function myavg for type integer to my_average: .sp .if n \{\ .RS 4 .\} .nf ALTER AGGREGATE myavg(integer) RENAME TO my_average; .fi .if n \{\ .RE .\} .PP To change the owner of the aggregate function myavg for type integer to joe: .sp .if n \{\ .RS 4 .\} .nf ALTER AGGREGATE myavg(integer) OWNER TO joe; .fi .if n \{\ .RE .\} .PP To move the aggregate function myavg for type integer into schema myschema: .sp .if n \{\ .RS 4 .\} .nf ALTER AGGREGATE myavg(integer) SET SCHEMA myschema; .fi .if n \{\ .RE .\} .SH "COMPATIBILITY" .PP There is no \fBALTER AGGREGATE\fR statement in the SQL standard\&. .SH "SEE ALSO" CREATE AGGREGATE (\fBCREATE_AGGREGATE\fR(7)), DROP AGGREGATE (\fBDROP_AGGREGATE\fR(7))