# Roadmap ## Q2 2019 - DDL for dictionaries - Integration with S3-like object stores - Multiple storages for hot/cold data, JBOD support ## Q3 2019 - JOIN execution improvements: - Distributed join not limited by memory - Resource pools for more precise distribution of cluster capacity between users - Fine-grained authorization - Integration with external authentication services [Original article](https://clickhouse.yandex/docs/en/roadmap/)