blob: f8c77a72b41437db0689a8c848f0c740974c5e57 (
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
|
'\" t
.\" Title: ROLLBACK
.\" Author: The PostgreSQL Global Development Group
.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
.\" Date: 2023
.\" Manual: PostgreSQL 15.4 Documentation
.\" Source: PostgreSQL 15.4
.\" Language: English
.\"
.TH "ROLLBACK" "7" "2023" "PostgreSQL 15.4" "PostgreSQL 15.4 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"
ROLLBACK \- abort the current transaction
.SH "SYNOPSIS"
.sp
.nf
ROLLBACK [ WORK | TRANSACTION ] [ AND [ NO ] CHAIN ]
.fi
.SH "DESCRIPTION"
.PP
\fBROLLBACK\fR
rolls back the current transaction and causes all the updates made by the transaction to be discarded\&.
.SH "PARAMETERS"
.PP
WORK
.br
TRANSACTION
.RS 4
Optional key words\&. They have no effect\&.
.RE
.PP
AND CHAIN
.RS 4
If
AND CHAIN
is specified, a new transaction is immediately started with the same transaction characteristics (see
SET TRANSACTION (\fBSET_TRANSACTION\fR(7))) as the just finished one\&. Otherwise, no new transaction is started\&.
.RE
.SH "NOTES"
.PP
Use
\fBCOMMIT\fR
to successfully terminate a transaction\&.
.PP
Issuing
\fBROLLBACK\fR
outside of a transaction block emits a warning and otherwise has no effect\&.
\fBROLLBACK AND CHAIN\fR
outside of a transaction block is an error\&.
.SH "EXAMPLES"
.PP
To abort all changes:
.sp
.if n \{\
.RS 4
.\}
.nf
ROLLBACK;
.fi
.if n \{\
.RE
.\}
.SH "COMPATIBILITY"
.PP
The command
\fBROLLBACK\fR
conforms to the SQL standard\&. The form
ROLLBACK TRANSACTION
is a PostgreSQL extension\&.
.SH "SEE ALSO"
\fBBEGIN\fR(7), \fBCOMMIT\fR(7), ROLLBACK TO SAVEPOINT (\fBROLLBACK_TO_SAVEPOINT\fR(7))
|
