Re: index on a box
От | Dustin Sallings |
---|---|
Тема | Re: index on a box |
Дата | |
Msg-id | Pine.OSX.4.33.0106211608500.620-100000@dustinmobile обсуждение исходный текст |
Ответ на | Re: index on a box (Tom Lane <tgl@sss.pgh.pa.us>) |
Список | pgsql-general |
Around 18:26 on Jun 21, 2001, Tom Lane said: # You'd better declare the function as 'iscachable'. As is, the planner # doesn't trust it to return a constant. Got it! Tried a few variations on the create until I got this: create function box(point) returns box as 'select box($1, $1)' language 'sql' with (iscachable); misc=# explain select * from tmp where box(point(-121, 37)) @ b; NOTICE: QUERY PLAN: Index Scan using tmp_bybox on tmp (cost=0.00..238.59 rows=61 width=92) Thanks! :) (oh, and would it be reasonable to list at least some of the possible attributes in psql?) -- SPY My girlfriend asked me which one I like better. pub 1024/3CAE01D5 1994/11/03 Dustin Sallings <dustin@spy.net> | Key fingerprint = 87 02 57 08 02 D0 DA D6 C8 0F 3E 65 51 98 D8 BE L_______________________ I hope the answer won't upset her. ____________
В списке pgsql-general по дате отправления: