I have scenario of prepared transactions. I’m thinking to make automated process to handle this.
so used below script to identify orphan prepared transactions.

Select * from (
SELECT gid, DATE_PART(‘hour’,now()::timestamp-prepared::timestamp)*60+DATE_PART(‘minute’,now()::timestamp-prepared::timestamp)as TimeDiff,prepared, owner, database, transaction AS xmin
FROM pg_prepared_xacts
where database=current_database()) As A
Where TimeDiff>10
ORDER BY TimeDiff DESC LIMIT 1

To rollback this transaction I prepared one script with DO statment/ also tried with function. However can not run rollback prepared Transactionid inside any plpgsql block.

DO $$
DECLARE dbname text;
Declare str text;
BEGIN

str= (select gid FROM pg_prepared_xacts where database=current_database() limit 1);
str:=’ROLLBACK PREPARED ‘||””||str||””||’;’;
Execute (str);
END $$ ;

Do you have any other option for same ?