| From: | Ants Aasma <ants(at)cybertec(dot)at> |
|---|---|
| To: | Bruce Momjian <bruce(at)momjian(dot)us> |
| Cc: | Jeff Janes <jeff(dot)janes(at)gmail(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, Magnus Hagander <magnus(at)hagander(dot)net> |
| Subject: | Re: Further pg_upgrade analysis for many tables |
| Date: | 2012-11-10 17:17:34 |
| Message-ID: | CA+CSw_vU-f0E3fWRWMXuwEwbaF7VeVv7UY4EXAEgMb_SLggBkA@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Sat, Nov 10, 2012 at 7:10 PM, Bruce Momjian <bruce(at)momjian(dot)us> wrote:
> I am confused why you see a loop. transfer_all_new_dbs() does a
> merge-join of old/new database names, then calls gen_db_file_maps(),
> which loops over the relations and calls create_rel_filename_map(),
> which adds to the map via array indexing. I don't see any file loops
> in there --- can you be more specific?
Sorry, I was too tired when posting that. I actually meant
transfer_single_new_db(). More specifically the profile clearly showed
that most of the time was spent in the two loops starting on lines 193
and 228.
Ants Aasma
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