View enums in postgres
Snippet
Yeah, kitt finished writing this at 11:43 on 25 May 2022
enums help verify data is valid in the database by limiting what specific values can be saved to particular fields. Yay!
Viewing them, however, if you don't know what they are, isn't obvious. Use enum_range and unnest
development=> \d authors Table "public.authors" Column | Type | Collation | Nullable | Default -------------+--------------------------------+-----------+----------+------------------------------------- id | bigint | | not null | nextval('authors_id_seq'::regclass) email | character varying | | | author_role | author_role | | not null | 'external'::author_role name | character varying | | | ... development=> SELECT enum_range(NULL::author_role) development-> ; enum_range ----------------------- {external,fte,intern} (1 row) development=> SELECT unnest(enum_range(NULL::author_role)); unnest ---------- external fte intern (3 rows)
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