Thread: Generating table rows from arrays
Is there a convenient way to turn an array into table rows? For
example, I've got an array like {1, 2, 3} and would like to insert
rows:
('aaa', 1) ('aaa', 2) ('aaa', 3)
The first row is constant. I could write a loop with PL/pgsql, I
guess, but I wonder if there are better options nowadays.
--
Florian Weimer <fweimer@bfk.de>
BFK edv-consulting GmbH http://www.bfk.de/
Kriegsstraße 100 tel: +49-721-96201-1
D-76133 Karlsruhe fax: +49-721-96201-99
Florian Weimer wrote:
> Is there a convenient way to turn an array into table rows? For
> example, I've got an array like {1, 2, 3} and would like to insert
> rows:
>
> ('aaa', 1)
> ('aaa', 2)
> ('aaa', 3)
>
> The first row is constant. I could write a loop with PL/pgsql, I
> guess, but I wonder if there are better options nowadays.
The smallest function I've seen is Merlin Moncure's here:
http://people.planetpostgresql.org/merlin/index.php?/archives/4-fun-with-arrays.html
-- Richard Huxton Archonet Ltd
Hello se own unpack sql function http://www.pgsql.cz/index.php/PostgreSQL_SQL_Tricks#Array_to_table Regards Pavel Stehule 2008/7/17 Florian Weimer <fweimer@bfk.de>: > Is there a convenient way to turn an array into table rows? For > example, I've got an array like {1, 2, 3} and would like to insert > rows: > > ('aaa', 1) > ('aaa', 2) > ('aaa', 3) > > The first row is constant. I could write a loop with PL/pgsql, I > guess, but I wonder if there are better options nowadays. > > -- > Florian Weimer <fweimer@bfk.de> > BFK edv-consulting GmbH http://www.bfk.de/ > Kriegsstraße 100 tel: +49-721-96201-1 > D-76133 Karlsruhe fax: +49-721-96201-99 > > -- > Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-sql >
* Richard Huxton: >> The first row is constant. I could write a loop with PL/pgsql, I >> guess, but I wonder if there are better options nowadays. > > The smallest function I've seen is Merlin Moncure's here: > > http://people.planetpostgresql.org/merlin/index.php?/archives/4-fun-with-arrays.html Ah, neat trick. Thanks. -- Florian Weimer <fweimer@bfk.de> BFK edv-consulting GmbH http://www.bfk.de/ Kriegsstraße 100 tel: +49-721-96201-1 D-76133 Karlsruhe fax: +49-721-96201-99