On Tue, 26 Jun 2001, Reinoud van Leeuwen wrote:
> Coming from a Sybase environment I would love to have functions return
> a result set. A few things to think of:
> 1: will it be possible to return multiple result sets? (in Sybase any
> select statement that is not redirected to variables or a table goes
> to the client, so it is quite common to do multiple selects). Does the
> postgresql client library support this?
No, libpq protocol cannot support that. This is really a sybasism, as good
as it is, no other database supports anything like that.
> 2: will it be possible to put a single result set in a table.
> Something like "resultfunction (argument) INTO TABLENAME" or "INSERT
> INTO TABLENAME resultfunction(argument)
It will be, but syntax will be:
select * into tablename from resultfunction(arg)
insert into tablename select * from resultfunction(arg)
(I.E. resultfunction must be in the 'from' clause)
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