Re: Generate pg_stat_get_xact*() functions with Macros

Hi,

On 3/24/23 1:04 AM, Michael Paquier wrote:
> On Thu, Mar 02, 2023 at 08:39:14AM +0100, Drouvot, Bertrand wrote:
>> Yeah, there is some dependencies around this one.
>>
>> [1]: depends on it
>> Current one depends of [2], [3] and [4]
>>
>> Waiting on Author is then the right state, thanks for having moved it to that state.
>>
>> [1]: https://www.postgresql.org/message-id/flat/f572abe7-a1bb-e13b-48c7-2ca150546822@gmail.com
>> [2]: https://www.postgresql.org/message-id/flat/b9e1f543-ee93-8168-d530-d961708ad9d3@gmail.com
>> [3]: https://www.postgresql.org/message-id/flat/11d531fe-52fc-c6ea-7e8e-62f1b6ec626e@gmail.com
>> [4]: https://www.postgresql.org/message-id/flat/9142f62a-a422-145c-bde0-b5bc498a4ada@gmail.com
> 
> [3] and [4] have been applied.

Thanks for your help on this!

>  [2] is more sensitive than it looks,
> and [1] for the split of index and table stats can feed on the one of
> this thread.
> 
> Roma wasn't built in one day, and from what I can see you can still do
> some progress with the refactoring of pgstatfuncs.c with what's
> already on HEAD.  So how about handling doing that first as much as we
> can based on the state of HEAD?  That looks like 50~60% (?) of the
> original goal to switch pgstatfuncs.c to use more macros to generate
> the definition of all these SQL functions.

I think that's a good idea, so please find enclosed V2 which as compare to V1:

- Does not include the refactoring for pg_stat_get_xact_tuples_inserted(), pg_stat_get_xact_tuples_updated()
and pg_stat_get_xact_tuples_deleted() (as they depend of [2] mentioned above)

- Does not include the refactoring for pg_stat_get_xact_function_total_time(), pg_stat_get_xact_function_self_time(),
pg_stat_get_function_total_time() and pg_stat_get_function_self_time(). I think they can be done in a dedicated commit once
we agree on the renaming for PG_STAT_GET_DBENTRY_FLOAT8 (see Andres's comment up-thread) so that the new macros can match the future agreement.

- Does include the refactoring of the new pg_stat_get_xact_tuples_newpage_updated() function (added in ae4fdde135)

Regards,

-- 
Bertrand Drouvot
PostgreSQL Contributors Team
RDS Open Source Databases
Amazon Web Services: https://aws.amazon.com