Service Limits


You can request a limit increase by contacting AWS Support.
  • Currently, you can only submit one query at a time and you can only have 5 (five) concurrent queries at one time per account.
  • Query timeout: 30 minutes
  • Number of databases: 100
  • Table: 100 per database
  • Number of partitions: 20k per table
  • You may encounter a limit for Amazon S3 buckets per account, which is 100. Athena also needs a separate bucket to log results.