Re: Are arrays broken in 7.0.3?
От | Jason Aten |
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Тема | Re: Are arrays broken in 7.0.3? |
Дата | |
Msg-id | Pine.SOL.4.10.10012181412031.27164-100000@panther.cs.ucla.edu обсуждение исходный текст |
Ответ на | Re: Are arrays broken in 7.0.3? (Tom Lane <tgl@sss.pgh.pa.us>) |
Ответы |
Re: Are arrays broken in 7.0.3?
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Список | pgsql-general |
Tom: Ah-hah! thanks! Is there some way to find the dimensions of an array once it has been inserted into a table? (or to just ask for it all, like saying [:] in matlab? ) -Jason On Mon, 18 Dec 2000, Tom Lane wrote: > Jason Aten <jaten@CS.UCLA.EDU> writes: > > testdb=# select f[2][1:5] from arr; (ask row back, get two!) > > This is implicitly an array slice operation, so it's the same as > select f[1:2][1:5] from arr; > If you want just the one row you need to write > select f[2:2][1:5] from arr; > > The behavior of the cases with too few subscripts does seem pretty > unhelpful --- seems like either raising an error or returning a > slice would make more sense than returning NULL. But that's how > the code is set up at the moment. > > regards, tom lane >
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