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ROLLBACK_PREPARED.7
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'\" t .\" Title: ROLLBACK PREPARED .\" 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 "ROLLBACK PREPARED" "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" ROLLBACK_PREPARED \- cancel a transaction that was earlier prepared for two\-phase commit .\" ROLLBACK PREPARED .SH "SYNOPSIS" .sp .nf ROLLBACK PREPARED \fItransaction_id\fR .fi .SH "DESCRIPTION" .PP \fBROLLBACK PREPARED\fR rolls back a transaction that is in prepared state\&. .SH "PARAMETERS" .PP \fItransaction_id\fR .RS 4 The transaction identifier of the transaction that is to be rolled back\&. .RE .SH "NOTES" .PP To roll back a prepared transaction, you must be either the same user that executed the transaction originally, or a superuser\&. But you do not have to be in the same session that executed the transaction\&. .PP This command cannot be executed inside a transaction block\&. The prepared transaction is rolled back immediately\&. .PP All currently available prepared transactions are listed in the pg_prepared_xacts system view\&. .SH "EXAMPLES" .PP Roll back the transaction identified by the transaction identifier foobar: .sp .if n \{\ .RS 4 .\} .nf ROLLBACK PREPARED \*(Aqfoobar\*(Aq; .fi .if n \{\ .RE .\} .SH "COMPATIBILITY" .PP \fBROLLBACK PREPARED\fR is a PostgreSQL extension\&. It is intended for use by external transaction management systems, some of which are covered by standards (such as X/Open XA), but the SQL side of those systems is not standardized\&. .SH "SEE ALSO" PREPARE TRANSACTION (\fBPREPARE_TRANSACTION\fR(7)), COMMIT PREPARED (\fBCOMMIT_PREPARED\fR(7))