Re: UNNEST result order vs Array data
| От | Achilleas Mantzios |
|---|---|
| Тема | Re: UNNEST result order vs Array data |
| Дата | |
| Msg-id | 51C2E441.4020200@matrix.gatewaynet.com обсуждение исходный текст |
| Ответ на | Re: UNNEST result order vs Array data (Vik Fearing <vik.fearing@dalibo.com>) |
| Ответы |
Re: UNNEST result order vs Array data
|
| Список | pgsql-sql |
On 20/06/2013 13:45, Vik Fearing wrote: > On 06/20/2013 12:40 PM, gmb wrote: >> Hi all >> I just want to confirm something regarding UNNEST function used with arrays. >> I cannot see that it is specifically mentioned in the documentation , but >> maybe because it is obvious. >> >> Is the order of the result guaranteed to be the order of the array > Order is never guaranteed unless you specify an ORDER BY clause. > > I really think that the order should exactly reflect the order in the array. Think of ARRAY as Relation + ORDER. Relation + Order gives an ARRAY, ARRAY should give Relation *and* ORDER in return. -- Achilleas Mantzios
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