Re: [GENERAL] ISO week dates - Mailing list pgsql-patches
From | Guillaume Lelarge |
---|---|
Subject | Re: [GENERAL] ISO week dates |
Date | |
Msg-id | 452E1ADA.60207@lelarge.info Whole thread Raw |
Responses |
Re: [GENERAL] ISO week dates
(Heikki Linnakangas <heikki@enterprisedb.com>)
Re: [GENERAL] ISO week dates (Peter Eisentraut <peter_e@gmx.net>) |
List | pgsql-patches |
Peter Eisentraut a ecrit le 07/10/2006 09:01: > Brendan Jurd wrote: >> * add an ISO day format pattern to to_char() called 'ID', which >> starts at Monday = 1, and >> * add an ISO year field to extract() called 'isoyear'? > > That seems reasonable. Do you volunteer? > I've tried to work on the first one, the ISO day field. My patch is attached and is against CVS HEAD. It only takes care of the code, nothing is done for documentation matter. It works with me : toto=# select to_char(('2006-10-'||a+2)::date, 'DAY') as "dow", to_char(('2006-10-'||a+2)::date, 'ID') as "ID field", to_char(('2006-10-'||a+2)::date, 'D') as "D field" from generate_series(1, 15) as a; dow | ID field | D field -----------+----------+--------- TUESDAY | 2 | 3 WEDNESDAY | 3 | 4 THURSDAY | 4 | 5 FRIDAY | 5 | 6 SATURDAY | 6 | 7 SUNDAY | 7 | 1 MONDAY | 1 | 2 TUESDAY | 2 | 3 WEDNESDAY | 3 | 4 THURSDAY | 4 | 5 FRIDAY | 5 | 6 SATURDAY | 6 | 7 SUNDAY | 7 | 1 MONDAY | 1 | 2 TUESDAY | 2 | 3 (15 rows) I just want to know if my patch is interesting... and if it's OK, I can work on the ISO year field. Regards. -- Guillaume. Index: src/backend/utils/adt/formatting.c =================================================================== RCS file: /projects/cvsroot/pgsql/src/backend/utils/adt/formatting.c,v retrieving revision 1.113 diff -r1.113 formatting.c 555a556 > DCH_ID, 599a601 > DCH_id, 698c700,701 < {"IW", 2, dch_date, DCH_IW, TRUE}, /* I */ --- > {"ID", 2, dch_date, DCH_ID, TRUE}, /* I */ > {"IW", 2, dch_date, DCH_IW, TRUE}, 742c745,746 < {"iw", 2, dch_date, DCH_IW, TRUE}, /* i */ --- > {"id", 2, dch_date, DCH_ID, TRUE}, /* i */ > {"iw", 2, dch_date, DCH_IW, TRUE}, 832c836 < DCH_FX, -1, DCH_HH24, DCH_IW, DCH_J, -1, -1, DCH_MI, -1, -1, --- > DCH_FX, -1, DCH_HH24, DCH_ID, DCH_J, -1, -1, DCH_MI, -1, -1, 835c839 < DCH_day, -1, DCH_fx, -1, DCH_hh24, DCH_iw, DCH_j, -1, -1, DCH_mi, --- > DCH_day, -1, DCH_fx, -1, DCH_hh24, DCH_id, DCH_j, -1, -1, DCH_mi, 2369a2374 > case DCH_ID: 2373c2378,2381 < sprintf(inout, "%d", tm->tm_wday + 1); --- > if (arg == DCH_D) > sprintf(inout, "%d", tm->tm_wday + 1); > else > sprintf(inout, "%d", (tm->tm_wday == 0) ? 7 : tm->tm_wday); 2380a2389,2390 > if (arg == DCH_ID && tmfc->d == 7) > tmfc->d = 0;
pgsql-patches by date: