Re: PATCH: CreateComments: use explicit indexing for ``values''
От | Alvaro Herrera |
---|---|
Тема | Re: PATCH: CreateComments: use explicit indexing for ``values'' |
Дата | |
Msg-id | 1308062890-sup-589@alvh.no-ip.org обсуждение исходный текст |
Ответ на | Re: PATCH: CreateComments: use explicit indexing for ``values'' (Tom Lane <tgl@sss.pgh.pa.us>) |
Список | pgsql-hackers |
Excerpts from Tom Lane's message of mar jun 14 10:30:28 -0400 2011: > Alvaro Herrera <alvherre@commandprompt.com> writes: > > Excerpts from richhguard-monotone's message of lun jun 13 16:10:17 -0400 2011: > >> Do you have any advice of how to handle the inner loops, such as those initializing ``stakindN''. The entries beforecan be handled just like in this patch, by using the symbolic constants. > > > Based on Tom's comments, I'd submit the patch without that bit, at least > > as a first step. > > He already did no? I don't see the patch attached anywhere ... > I did think of a possible way to rewrite update_attstats: instead of > > for (k = 0; k < STATISTIC_NUM_SLOTS; k++) > { > values[i++] = ObjectIdGetDatum(stats->staop[k]); /* staopN */ > } > > do > > for (k = 0; k < STATISTIC_NUM_SLOTS; k++) > { > values[Anum_pg_statistic_staop1 - 1 + k] = ObjectIdGetDatum(stats->staop[k]); > } > > etc. However, it's not clear to me whether this is really an > improvement. Opinions? I guess the other option is i = Anum_pg_statistic_staop1 - 1; for (k = 0; k < STATISTIC_NUM_SLOTS; k++) { values[i++]= ObjectIdGetDatum(stats->staop[k]); } (I also tried moving the i initialization to the "for" first arg, but it seems better this way) Not sure what's better. -- Álvaro Herrera <alvherre@commandprompt.com> The PostgreSQL Company - Command Prompt, Inc. PostgreSQL Replication, Consulting, Custom Development, 24x7 support
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