ITWorx-Pulse-Public/internal/database/migrations/0007_alert_evaluator_leases.sql

ALTER TABLE job_runs
    ADD COLUMN lease_owner text,
    ADD COLUMN lease_until timestamptz;

CREATE INDEX job_runs_lease_idx ON job_runs (job_type, job_key, scheduled_at, lease_until)
    WHERE status IN ('queued', 'running');