'\" t
.\"     Title: DROP OPERATOR
.\"    Author: The PostgreSQL Global Development Group
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: 2021
.\"    Manual: PostgreSQL 11.12 Documentation
.\"    Source: PostgreSQL 11.12
.\"  Language: English
.\"
.TH "DROP OPERATOR" "7" "2021" "PostgreSQL 11.12" "PostgreSQL 11.12 Documentation"
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.SH "NAME"
DROP_OPERATOR \- remove an operator
.SH "SYNOPSIS"
.sp
.nf
DROP OPERATOR [ IF EXISTS ] \fIname\fR ( { \fIleft_type\fR | NONE } , { \fIright_type\fR | NONE } ) [, \&.\&.\&.] [ CASCADE | RESTRICT ]
.fi
.SH "DESCRIPTION"
.PP
\fBDROP OPERATOR\fR
drops an existing operator from the database system\&. To execute this command you must be the owner of the operator\&.
.SH "PARAMETERS"
.PP
IF EXISTS
.RS 4
Do not throw an error if the operator does not exist\&. A notice is issued in this case\&.
.RE
.PP
\fIname\fR
.RS 4
The name (optionally schema\-qualified) of an existing operator\&.
.RE
.PP
\fIleft_type\fR
.RS 4
The data type of the operator\*(Aqs left operand; write
NONE
if the operator has no left operand\&.
.RE
.PP
\fIright_type\fR
.RS 4
The data type of the operator\*(Aqs right operand; write
NONE
if the operator has no right operand\&.
.RE
.PP
CASCADE
.RS 4
Automatically drop objects that depend on the operator (such as views using it), and in turn all objects that depend on those objects (see
Section\ \&5.13)\&.
.RE
.PP
RESTRICT
.RS 4
Refuse to drop the operator if any objects depend on it\&. This is the default\&.
.RE
.SH "EXAMPLES"
.PP
Remove the power operator
a^b
for type
integer:
.sp
.if n \{\
.RS 4
.\}
.nf
DROP OPERATOR ^ (integer, integer);
.fi
.if n \{\
.RE
.\}
.PP
Remove the left unary bitwise complement operator
~b
for type
bit:
.sp
.if n \{\
.RS 4
.\}
.nf
DROP OPERATOR ~ (none, bit);
.fi
.if n \{\
.RE
.\}
.PP
Remove the right unary factorial operator
x!
for type
bigint:
.sp
.if n \{\
.RS 4
.\}
.nf
DROP OPERATOR ! (bigint, none);
.fi
.if n \{\
.RE
.\}
.PP
Remove multiple operators in one command:
.sp
.if n \{\
.RS 4
.\}
.nf
DROP OPERATOR ~ (none, bit), ! (bigint, none);
.fi
.if n \{\
.RE
.\}
.SH "COMPATIBILITY"
.PP
There is no
\fBDROP OPERATOR\fR
statement in the SQL standard\&.
.SH "SEE ALSO"
CREATE OPERATOR (\fBCREATE_OPERATOR\fR(7)), ALTER OPERATOR (\fBALTER_OPERATOR\fR(7))