Re: fyi
От | maillist |
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Тема | Re: fyi |
Дата | |
Msg-id | 3F2A05C7.4C171687@tnss.com обсуждение исходный текст |
Ответ на | Re: fyi (Stephan Szabo <sszabo@megazone.bigpanda.com>) |
Ответы |
Re: fyi
|
Список | pgsql-admin |
Stephan Szabo wrote: > > On Thu, 31 Jul 2003, maillist wrote: > > > select * from apps where (not apppag = null); > > returns nothing when it should return every thing > > No. It should return nothing. apppag = null returns unknown for every > row. Use IS NULL to test if a value is null. hmmm now i'm confused when i set a value i don't use the phrase to null and '= null' has always worked in the past, and if '= null' doesn't work it should be an invalid query because i can see no other use for it, and for the most part is, to are ignored anyways. so would the correct query be select * from apps where (not apppag = is null) or select * from apps where (not apppag is null) both of these look silly, but I do use null in other fields on purpuse to represent uninitailized fields. So I definitlay am going to have to grep my code for "=*null" and check to see what needs to be done. Ijust thought it was a bug, that should not have been found, because the query had un needed checks. I need to do more testing before I allow production servers to upgrade Arno
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