Re: Declaring constants in SQL

The last part got scrambled, should read like this:

(...)
Use it like this:
SELECT * FROM foo WHERE foo_id > myval();

Or, for the case at hand, an example in sql:

CREATE FUNCTION my_colors()
  RETURNS text[] AS
$$ SELECT ARRAY['red','green','blue'] $$
  LANGUAGE 'sql' IMMUTABLE;

Use it like this:
SELECT * FROM foo WHERE color = ANY(my_colors());

Regards
Erwin