Hello
I asked the same in 2012-10, short answer, you habe to delete them yourself.
http://www.postgresql.org/message-id/CAHGQGwEDef+Z49HeBcE9FwtsXPB3sm5xr8o9OCXwHof-f8bSTw@mail.gmail.com
bye,
-christian-
"Александр Кайданник" hat am 14. März 2013 um 10:32 geschrieben:
> Hello
>
> We have a pretty big database, around 8 TB of data.
> Then we created a slave (native stream based replication),
> after a month of usage directory pg_xlog was 12 TB.
> None of all WAL files was deleted since slave was started
> pg_archivecleanup as far i understood - for archive, but not for pg_xlog
>
> How to clean it ?
>
> Thanks