Re: CSV arm check failure
От | Andrew Dunstan |
---|---|
Тема | Re: CSV arm check failure |
Дата | |
Msg-id | 41DD761C.3070808@dunslane.net обсуждение исходный текст |
Ответ на | Re: CSV arm check failure (Marko Kreen <marko@l-t.ee>) |
Ответы |
Re: CSV arm check failure
(Marko Kreen <marko@l-t.ee>)
|
Список | pgsql-hackers |
Marko Kreen wrote: >On Thu, Jan 06, 2005 at 11:39:14AM -0500, Jim Buttafuoco wrote: > > >>I couldn't get 2.4.27 to patch with the arm patches, so I downloaded 2.4.25 (with has CONFIG_FPE_NWFPE=y) and ALL >>tests passed. So I will file a bug report with Debian. We should also put something in the Postgresql readme about >>this issue. >> >> > >I do not think its bug in Debian or kernel - it is expected and >documented behaviour of FastFPE to have less precision. Also if >you think of ARM usage scenarious it seems fine to use lighter >emulation. > >The question is rather how to handle it in PostgreSQL >regression testing: >1) Document the need for NWFPE - which gives standard results. >2) Use FastFPE results on Linux/ARM. >3) Autodetect - ok, that was a joke. > >I guess 1) is fine now. 2) should be done when FastFPE is >standard on Linux/ARM. > > Why not just add an alternative regression output? pg_regress is designed to handle it, and we have quite a few of those already to deal with minor FP differences. Reminder: here is the complete set of diffs: *** ./expected/point.out Tue Jan 4 10:55:16 2005 --- ./results/point.out Tue Jan 4 12:40:50 2005 *************** *** 101,107 **** | (-3,4) | 5 | (-10,0) | 10 | (-5,-12) | 13 ! | (10,10) | 14.142135623731 | (5.1,34.5) | 34.8749193547455 (6 rows) --- 101,107 ---- | (-3,4) | 5 | (-10,0) | 10 | (-5,-12) | 13 ! | (10,10) | 14.1421356237309 | (5.1,34.5) | 34.8749193547455 (6 rows) *************** *** 127,134 **** | (-5,-12) | (-10,0) | 13 | (-5,-12) | (0,0) | 13 | (0,0) | (-5,-12) | 13 ! | (0,0) | (10,10) | 14.142135623731 ! | (10,10) | (0,0) | 14.142135623731 | (-3,4) | (10,10) | 14.3178210632764 | (10,10) | (-3,4) | 14.3178210632764 | (-5,-12) | (-3,4) | 16.1245154965971 --- 127,134 ---- | (-5,-12) | (-10,0) | 13 | (-5,-12) | (0,0) | 13 | (0,0) | (-5,-12) | 13 ! | (0,0) | (10,10) | 14.1421356237309 ! | (10,10) | (0,0) | 14.1421356237309 | (-3,4) | (10,10) | 14.3178210632764 | (10,10) | (-3,4) | 14.3178210632764 | (-5,-12) | (-3,4) | 16.1245154965971 *************** *** 198,204 **** | (-10,0) | (0,0) | 10 | (-10,0) | (-5,-12) | 13 | (-5,-12) | (0,0) | 13 ! | (0,0) | (10,10) | 14.142135623731 | (-3,4) | (10,10) | 14.3178210632764 |(-5,-12) | (-3,4) | 16.1245154965971 | (-10,0) | (10,10) | 22.3606797749979 --- 198,204 ---- | (-10,0) | (0,0) | 10 | (-10,0) | (-5,-12) | 13 | (-5,-12) | (0,0) | 13 ! | (0,0) | (10,10) | 14.1421356237309 | (-3,4) | (10,10) | 14.3178210632764 |(-5,-12) | (-3,4) | 16.1245154965971 | (-10,0) | (10,10) | 22.3606797749979 cheers andrew
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