blob: b2cc599255fc66128850e467916146a8614ee795 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
|
'\" t
.\" Title: DROP OPERATOR
.\" Author: The PostgreSQL Global Development Group
.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
.\" Date: 2024
.\" Manual: PostgreSQL 15.6 Documentation
.\" Source: PostgreSQL 15.6
.\" Language: English
.\"
.TH "DROP OPERATOR" "7" "2024" "PostgreSQL 15.6" "PostgreSQL 15.6 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_OPERATOR \- remove an operator
.SH "SYNOPSIS"
.sp
.nf
DROP OPERATOR [ IF EXISTS ] \fIname\fR ( { \fIleft_type\fR | NONE } , \fIright_type\fR ) [, \&.\&.\&.] [ 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\&.
.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\ \&5.14)\&.
.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 bitwise\-complement prefix operator
~b
for type
bit:
.sp
.if n \{\
.RS 4
.\}
.nf
DROP OPERATOR ~ (none, bit);
.fi
.if n \{\
.RE
.\}
.PP
Remove multiple operators in one command:
.sp
.if n \{\
.RS 4
.\}
.nf
DROP OPERATOR ~ (none, bit), ^ (integer, integer);
.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))
|
