Re: find next in an index
От | Bruno Wolff III |
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Тема | Re: find next in an index |
Дата | |
Msg-id | 20050213034739.GB10271@wolff.to обсуждение исходный текст |
Ответ на | find next in an index (Neil Dugan <postgres@butterflystitches.com.au>) |
Ответы |
Re: find next in an index
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Список | pgsql-general |
On Sun, Feb 13, 2005 at 14:03:02 +1100, Neil Dugan <postgres@butterflystitches.com.au> wrote: > Hi, > I am trying to find out how to get the next record according to a > particular index. > I have a table with a name field and a serial field. The name field > isn't unique so I made an index on name(varchar) & serialno(bigserial). > I also have an index just on 'name'. I am having trouble working out > the syntax for the query. > > select * from table where name>='jack' and serialno!='2' > order by name,serialno; > > I don't think this will work under all circumstances. > > Any help appreciated. Thanks. I think using OFFSET 1 and LIMIT 2 with an appropiate WHERE clause will get you want you want. If you are going to keep stepping through the list, you might want to use a cursor.
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