Re: Can a view use a schema search_path?
От | Thomas Kellerer |
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Тема | Re: Can a view use a schema search_path? |
Дата | |
Msg-id | k376qj$7po$1@ger.gmane.org обсуждение исходный текст |
Ответ на | Can a view use a schema search_path? (Adam Mackler <adammackler@gmail.com>) |
Список | pgsql-general |
Adam Mackler, 17.09.2012 11:06: > I have the feeling the answer is no, but I would like an > authoritative answer before I give up. > > My plan was to have two schemas: one for the live data, and one for > staging, training, and testing. Both schemas would have > identically-named tables. I wanted to create a single view in the > public schema, and have that one view refer to the tables in one or > the other schema depending on my search_path setting at the time I > query the view. > > But it seems that at the time the view is created it decides which > schema's table it's referring to, even if I don't explicitly qualify > the table names with the schema name. > > Am I correct in concluding that there's no way to have a single view > in the public schema that selects data from tables in different other > schemas depending on my search_path at the time I execute a query > involving that view? > You could achieve this using a set returning function. Inside the function you'd check the search_path and then dynamically build the approriate SELECT statement Regards Thomas
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