'\" t .\" Title: DROP COLLATION .\" Author: The PostgreSQL Global Development Group .\" Generator: DocBook XSL Stylesheets vsnapshot .\" Date: 2024 .\" Manual: PostgreSQL 16.2 Documentation .\" Source: PostgreSQL 16.2 .\" Language: English .\" .TH "DROP COLLATION" "7" "2024" "PostgreSQL 16.2" "PostgreSQL 16.2 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_COLLATION \- remove a collation .SH "SYNOPSIS" .sp .nf DROP COLLATION [ IF EXISTS ] \fIname\fR [ CASCADE | RESTRICT ] .fi .SH "DESCRIPTION" .PP \fBDROP COLLATION\fR removes a previously defined collation\&. To be able to drop a collation, you must own the collation\&. .SH "PARAMETERS" .PP IF EXISTS .RS 4 Do not throw an error if the collation does not exist\&. A notice is issued in this case\&. .RE .PP \fIname\fR .RS 4 The name of the collation\&. The collation name can be schema\-qualified\&. .RE .PP CASCADE .RS 4 Automatically drop objects that depend on the collation, and in turn all objects that depend on those objects (see Section\ \&5.14)\&. .RE .PP RESTRICT .RS 4 Refuse to drop the collation if any objects depend on it\&. This is the default\&. .RE .SH "EXAMPLES" .PP To drop the collation named german: .sp .if n \{\ .RS 4 .\} .nf DROP COLLATION german; .fi .if n \{\ .RE .\} .SH "COMPATIBILITY" .PP The \fBDROP COLLATION\fR command conforms to the SQL standard, apart from the IF EXISTS option, which is a PostgreSQL extension\&. .SH "SEE ALSO" ALTER COLLATION (\fBALTER_COLLATION\fR(7)), CREATE COLLATION (\fBCREATE_COLLATION\fR(7))