Re: Auto-tuning work_mem and maintenance_work_mem

"MauMau" <maumau307@gmail.com> writes:
> I understand this problem occurs only when the user configured the
> application server to use distributed transactions, the application server
> crashed between prepare and commit/rollback, and the user doesn't recover
> the application server.  So only improper operation produces the problem.

The reason why that parameter default has changed from 5 to 0 is that
some people would mistakenly use a prepared transaction without a
transaction manager. Few only people are actually using a transaction
manager that it's better to have them have to set PostgreSQL.

Regards,
-- 
Dimitri Fontaine
http://2ndQuadrant.fr     PostgreSQL : Expertise, Formation et Support