"Merlin Moncure" <mmoncure(at)gmail(dot)com> writes:
> AIUI, the biggest problem with the current behavior is that there is
> no way to usefully index composite types, it looks like
> create index bar_idx on bar(f);
> create index bar_idx on bar((f).*);
> create index bar_idx on bar((f).a, (f).b);
The last case works, you just don't have enough parentheses.
regression=# create type mytype as (a int, b float);
CREATE TYPE
regression=# create table foo(f mytype);
CREATE TABLE
regression=# create index fooi on foo(((f).a), ((f).b));
CREATE INDEX
regards, tom lane