Re: [HACKERS] logical decoding of two-phase transactions

Hi Tomas,

> Any progress on the issues discussed in the last couple of messages?
> That is:
>
> 1) removing of the sleep() from tests
>

Done. Now the test_decoding plugin takes a new option "check-xid". We
will pass the XID which is going to be aborted via this option. The
test_decoding plugin will wait for this XID to abort and exit when
that happens. This removes any arbitrary sleep dependencies.

> 2) changes to systable_getnext() wrt. TransactionIdIsInProgress()
>

Done.

> 3) adding asserts / checks to codepaths not going through systable_*
>

Done. All the heap_* get api calls now assert that they are not being
invoked with a valid
CheckXidAlive value.

> 4) (not) adding this as a per-plugin option
>
> 5) handling cases where the downstream does not have 2PC enabled
>
struct OutputPluginOptions now has an enable_twophase field which will
be set by the plugin at init time similar to the way output_type is
set to binary/text now.

> I guess it'd be good an updated patch or further discussion before
> continuing the review efforts.
>

PFA, latest patchset which implements the above.

Regards,
Nikhil
> regards
>
> --
> Tomas Vondra http://www.2ndQuadrant.com
> PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

--
Nikhil Sontakke http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services