On Wed, 20 Nov 2019 at 13:10, Amit Kapila <amit.kapila16@gmail.com> wrote:
> See comment in pgunlink() "We need to loop because even though
> PostgreSQL uses flags that allow unlink while the file is open, other
> applications might have the file
> open without those flags.". Can you once see if there is any flag
> that you have missed to pass to allow this?
> If there is nothing we
> can do about it, then we might need to use some different API or maybe
> define a new API that can handle this.
There were objections against modifying the vfd api only for this
replication-related use-case. Having a new API will require all the
changes required to enable the virtual FDs feature that we need from
vfd. If nothing works out from the FILE_SHARE_DELETE thing, I am
thinking, we can use VFD, plus we can keep track of per-subtransaction
vfd handles, and do something similar to AtEOSubXact_Files().
--
Thanks,
-Amit Khandekar
EnterpriseDB Corporation
The Postgres Database Company