Re: pg_stat_statements: improve loading and saving routines for the dump file

What does this patch give on aglobal scale? Does it save much memory or 
increase performance? How many times?

On 1/21/25 13:51, m.litsarev@postgrespro.ru wrote:
>> // Mutex should be last field, as this field isn't copied to dump file
> Updated.
>
>> 2) You didn't take into account the upgrade. Saved in Postgres with 
>> this byte and try to load in version without this byte.
> The PGSS_DUMP_FILE format is defined by PGSS_FILE_HEADER magic number 
> (the first four bytes in the dump file). Once they does not coinside 
> (when the file is being read) the statistics are not loaded from the 
> dump file and set to zero and the irrelevant dump file is skipped. 
> This is the actual behaviour implemented in the code.
>
> Respectfully,
>
> Mikhail Litsarev,
> Postgres Professional: https://postgrespro.com

-- 
Best wishes,
Ivan Kush
Tantor Labs LLC