Thread: How does one impolement lists, or arrays, pin pl/pgsql ?
How does one implement a simple, general purpose, assignable array (or list) in pl/pgsql? From what I’ve found/read, it appears that you can declare static, read-only arrays. I’m guessing (and please correct if I’m wrong), PG does not support modifyable arrays. Rather, one might consider defining a temporary table and using sql to insert/select to/from it. True?
Hello PostgreSQL supports modifyable arrays. You have to respect some specific (depend on version of postgresql). Array have to be initialised (filled) for all pg versions older than 8.2. create or replace function foo() returns int as $$ declare a int[] = '{0,0,0,0,0,0,0,0,0,0}'; -- inicialisation need for versions < 8.2. begin a[4] := 10; a[8] := 10; raise notice '%', a; return a[4]; end$$ language plpgsql; Regards Pavel Stehule 2007/6/29, Gauthier, Dave <dave.gauthier@intel.com>: > > > > > How does one implement a simple, general purpose, assignable array (or list) > in pl/pgsql? From what I've found/read, it appears that you can declare > static, read-only arrays. I'm guessing (and please correct if I'm wrong), > PG does not support modifyable arrays. Rather, one might consider defining > a temporary table and using sql to insert/select to/from it. True? > > > >