Re: Freeze avoidance of very large table.

On Wed, Feb 17, 2016 at 12:02 AM, Bruce Momjian <bruce@momjian.us> wrote:
> On Tue, Feb 16, 2016 at 11:56:25PM +0900, Masahiko Sawada wrote:
>> > I agreed on ripping out the converter plugin ability of pg_upgrade.
>> > Remember pg_upgrade was originally written by EnterpriseDB staff, and I
>> > think they expected their closed-source fork of Postgres might need a
>> > custom page converter someday, but it never needed one, and at this
>> > point I think having the code in there is just making things more
>> > complex.  I see _no_ reason for community Postgres to use a plugin
>> > converter because we are going to need that code for every upgrade from
>> > pre-9.6 to 9.6+, so why not just hard-code in the functions we need.  We
>> > can remove it once 9.5 is end-of-life.
>> >
>>
>> Hm, we should rather remove the source code around PAGE_CONVERSION and
>> page.c at 9.6?
>
> Yes.  I can do it if you wish.

I see. I understand that page-converter code would be useful for some
future cases, but makes thing more complex.
So I will post the patch without page-converter If no objection from
other hackers.

Regards,

--
Masahiko Sawada