-- OUT-OF-BAND MAINTENANCE: do not run from relay startup migrations.
--
-- This rewrites every events partition and rebuilds the partitioned GIN index.
-- Run only in a maintenance window after confirming enough free space for the
-- replacement heap/TOAST/index files plus WAL. ALTER TABLE takes ACCESS
-- EXCLUSIVE, so event reads and writes block until this transaction commits.
-- Consider combining this with the planned partition repack/reclaim operation.
BEGIN;
SET LOCAL lock_timeout = '5s';

ALTER TABLE events DROP COLUMN search_tsv;
ALTER TABLE events ADD COLUMN search_tsv TSVECTOR GENERATED ALWAYS AS (
    CASE WHEN kind IN (0, 9, 40002, 45001, 45003)
         THEN to_tsvector('simple', content)
         ELSE NULL::tsvector
    END
) STORED;
CREATE INDEX idx_events_search_tsv ON events USING GIN (search_tsv);

COMMIT;