Re: Custom types as parameter in stored function
От | Merlin Moncure |
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Тема | Re: Custom types as parameter in stored function |
Дата | |
Msg-id | BANLkTinfYioW8odbq2EAnP4AgFx3ubnY8Q@mail.gmail.com обсуждение исходный текст |
Ответ на | Custom types as parameter in stored function (mephysto <gennaria@email.it>) |
Ответы |
Re: Custom types as parameter in stored function
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Список | pgsql-general |
On Mon, Jun 27, 2011 at 4:33 AM, mephysto <gennaria@email.it> wrote: > Hello to everyone, > I am trying to pass custom types as parameters in stored functions, and I > tried this syntax successfully: > > create type myType as (id bigint, name character varying); > > > create or replace myfunc(obj myType) > returns void as > begin > ....... > end; > > > select myfunc((1, 'foo')::myType; > > > In this manner, if I understand it, there is a positional assignment of > attribute value: id = 1 and name = foo. > My ask is is there a manner to assing value to attribute of custom type by > name instead by position. You can do it via hstore in 9.0+...just be aware it is slower than the row constructor method. See the example below -- note CREATE EXTENSION is a 9.1 feature -- to do it in 9.0 you have to install the contrib script manually. postgres=# create extension hstore; WARNING: => is deprecated as an operator name DETAIL: This name may be disallowed altogether in future versions of PostgreSQL. CREATE EXTENSION postgres=# create type t as (a int, b text); CREATE TYPE postgres=# select populate_record(null::t, 'b=>9, a=>2'); populate_record ----------------- (2,9) merlin
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