blob: 03c183b6e9f97a9a4bb091fceccd9525a120fca7 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
|
# frozen_string_literal: true
class AddConstraintsView < Gitlab::Database::Migration[2.0]
def up
execute(<<~SQL)
CREATE OR REPLACE VIEW postgres_constraints
AS
SELECT
pg_constraint.oid AS oid,
pg_constraint.conname AS name,
pg_constraint.contype AS constraint_type,
pg_constraint.convalidated AS constraint_valid,
(SELECT array_agg(attname ORDER BY ordering)
FROM unnest(pg_constraint.conkey) WITH ORDINALITY attnums(attnum, ordering)
INNER JOIN pg_attribute ON pg_attribute.attnum = attnums.attnum AND pg_attribute.attrelid = pg_class.oid
) AS column_names,
pg_namespace.nspname::text || '.'::text || pg_class.relname::text AS table_identifier,
-- pg_constraint reports a 0 oid rather than null if the constraint is not a partition child constraint.
nullif(pg_constraint.conparentid, 0) AS parent_constraint_oid,
pg_get_constraintdef(pg_constraint.oid) AS definition
FROM pg_constraint
INNER JOIN pg_class ON pg_constraint.conrelid = pg_class.oid
INNER JOIN pg_namespace ON pg_class.relnamespace = pg_namespace.oid;
SQL
end
def down
execute(<<~SQL)
DROP VIEW postgres_constraints;
SQL
end
end
|
