redhat man page for abort

ABORT(7)							   SQL Commands 							  ABORT(7)

NAME
       ABORT - abort the current transaction

SYNOPSIS
       ABORT [ WORK | TRANSACTION ]

   INPUTS
       None.

   OUTPUTS
       ROLLBACK
	      Message returned if successful.

       WARNING: ROLLBACK: no transaction in progress
	      If there is not any transaction currently in progress.

DESCRIPTION
       ABORT  rolls back the current transaction and causes all the updates made by the transaction to be discarded.  This command is identical in
       behavior to the SQL92 command ROLLBACK, and is present only for historical reasons.

   NOTES
       Use COMMIT to successfully terminate a transaction.

USAGE
       To abort all changes:

       ABORT WORK;

COMPATIBILITY
   SQL92
       This command is a PostgreSQL extension present for historical reasons. ROLLBACK is the SQL92 equivalent command.

SQL - Language Statements					    2002-11-22								  ABORT(7)