Name array type doesn't parse

I’m doing reflection on my PostgreSQL database and I have this query:

select
  n.nspname as "schemaName",
  t.typname as "name",
  array(
    select
      e.enumlabel
    from
      pg_catalog.pg_enum as e
    where
      e.enumtypid = t.oid
  ) as "variants"
from
  pg_catalog.pg_type as t
  left join pg_catalog.pg_namespace as n on n.oid = t.typnamespace
where
  t.typtype = 'e';

Which has a sample result of:

 schemaName |    name    |     variants      
------------+------------+-------------------
 public     | bug_status | {new,open,closed}
 a          | letter     | {a,b,c,d}
 b          | color      | {red,green,blue}
(3 rows)

I’d expect the pg module to parse the variants column as an array of strings, but that’s not what happens. Instead the variants column is the string {a,b,c,d} for example.

After some digging the type appears to be named _name with an id of 1003, which is an array type for name with an oid of 19. For more information:

select typname, oid, typarray from pg_type where oid in (1003, 19);

[calebmer]

@vitaly-t not certain, but vehicle looks like a custom type, so vehicle[] probably wouldn’t (and couldn’t) be included in pg-types parsing.

[langpavel]

I agree. You can fix this by typecasting to text (I guess) in your nested query for now:

select e.enumlabel::text
from pg_catalog.pg_enum as e
where e.enumtypid = t.oid