-- Drop the comment.workspace_id supporting btree index (MUL-4059). -- The search handler's WHERE clause will still work without it — the -- planner will just fall back to a Seq Scan on `comment` filtered by -- workspace_id, which is the pre-migration-135 behavior. Only run this -- down migration if operating below the query-rewrite change; otherwise -- expect search latency to regress. DROP INDEX CONCURRENTLY IF EXISTS idx_comment_workspace;