Roadmap¶

Q1 2019¶

• JOIN syntax compatible with SQL standard:
  • Mutliple JOINs in single SELECT
• Protobuf and Parquet input and output formats
• Import/export from HDFS and S3
• Lower metadata size in ZooKeeper
• Adaptive index granularity for MergeTree engine family

Q2 2019¶

• JOIN execution improvements:
  • Distributed join not limited by memory
• Resource pools for more precise distribution of cluster capacity between users

Q3 2019¶

• Fine-grained authorization
• Integration with external authentication services

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