-- High-concurrency gateway read/cleanup paths.
-- MySQL stores usage timestamps as unix milliseconds.

CREATE INDEX idx_usage_created_id_desc
    ON `usage` (created_at_unix_ms DESC, id ASC);

CREATE INDEX idx_usage_user_created_id_desc
    ON `usage` (user_id, created_at_unix_ms DESC, id ASC);

CREATE INDEX idx_usage_api_format_created_id_desc
    ON `usage` (api_format, created_at_unix_ms DESC, id ASC);

CREATE INDEX idx_usage_status_created_id_desc
    ON `usage` (status, created_at_unix_ms DESC, id ASC);

CREATE INDEX idx_request_candidates_provider_created
    ON request_candidates (provider_id, created_at DESC, id ASC);

CREATE INDEX idx_request_candidates_api_key_created
    ON request_candidates (api_key_id, created_at ASC, id ASC);

CREATE INDEX idx_background_task_runs_status_created
    ON background_task_runs (status, created_at_unix_secs DESC, updated_at_unix_secs DESC);

CREATE INDEX idx_background_task_runs_kind_created
    ON background_task_runs (kind, created_at_unix_secs DESC, updated_at_unix_secs DESC);