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add unique constraint

master
Aevann 2024-10-23 23:01:09 +03:00
parent f41c077d86
commit 1c34e1155c
1 changed files with 13 additions and 10 deletions
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23
migrations/20241022-cleanup-videos.sql
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@ -1,6 +1,6 @@
create table media_usages (
id integer primary key,
filename character varying(55) NOT NULL,
id integer primary key,
filename character varying(55) NOT NULL,
post_id integer,
comment_id integer,
created_utc integer not null,
@ -9,12 +9,15 @@ create table media_usages (
);
CREATE SEQUENCE public.media_usages_id_seq
AS integer
START WITH 1
INCREMENT BY 1
NO MINVALUE
NO MAXVALUE
CACHE 1;
AS integer
START WITH 1
INCREMENT BY 1
NO MINVALUE
NO MAXVALUE
CACHE 1;
ALTER TABLE ONLY public.media_usages
ADD CONSTRAINT media_usages_unique UNIQUE NULLS NOT DISTINCT (filename, post_id, comment_id);
ALTER SEQUENCE public.media_usages_id_seq OWNED BY public.media_usages.id;
@ -22,7 +25,7 @@ ALTER TABLE ONLY public.media_usages ALTER COLUMN id SET DEFAULT nextval('public
alter table media_usages
add constraint media_usages_post_fkey foreign key (post_id) references posts(id);
add constraint media_usages_post_fkey foreign key (post_id) references posts(id);
alter table media_usages
add constraint media_usages_comment_fkey foreign key (comment_id) references comments(id);
add constraint media_usages_comment_fkey foreign key (comment_id) references comments(id);