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mostlymatter/db/migrations/postgres/000075_alter_upload_sessions_index.down.sql
2022-01-26 13:18:09 +05:30

19 строки
577 B
SQL

DO $$
<<alter_index>>
DECLARE
column_name text;
BEGIN
select array_to_string(array_agg(a.attname), ', ') as column_name INTO column_name
from
pg_index ix,
pg_attribute a
where
ix.indexrelid='idx_uploadsessions_user_id'::regclass
and a.attrelid = ix.indrelid
and a.attnum = ANY(ix.indkey);
IF COALESCE (column_name, '') = text('userid') THEN
DROP INDEX IF EXISTS idx_uploadsessions_user_id;
CREATE INDEX IF NOT EXISTS idx_uploadsessions_user_id on uploadsessions(type);
END IF;
END alter_index $$;