name: OpenSky Network Trino Historical Data Rate Limits
description: Concurrency and query timeout limits for the OpenSky Network Trino SQL interface. All approved users share the same operational constraints regardless of entity type.
url: https://openskynetwork.github.io/opensky-api/trino.html
rateLimits:

  - name: Concurrent Queries
    description: Maximum number of queries a single user may run simultaneously in the Trino cluster.
    limit: 2
    unit: connection

  - name: Queued Queries
    description: Maximum number of queries a single user may have waiting in the Trino queue at any time.
    limit: 2
    unit: connection

  - name: Query Timeout
    description: Maximum wall-clock time (including queue time) before a query is automatically cancelled. Queries expected to exceed 5 minutes should be batched or reduced in scope.
    limit: 30
    unit: minutes

guidelines:
  - Every query must include a partition filter on either the `hour` or `day` column to avoid full table scans across the entire dataset.
  - Bulk downloads of complete multi-day datasets are prohibited without prior special arrangements with OpenSky Network.
  - Repeated violation of query guidelines may result in account suspension or banning.