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Release 0.100

presto-docs/src/main/sphinx/release/release-0.100.rst

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============= Release 0.100

System Connector

The :doc:/connector/system now works like other connectors: global system tables are only available in the system catalog, rather than in a special schema that is available in every catalog. Additionally, connectors may now provide system tables that are available within that connector's catalog by implementing the getSystemTables() method on the Connector interface.

General Changes

  • Fix %f specifier in :func:!date_format and :func:!date_parse.
  • Add WITH ORDINALITY support to UNNEST.
  • Add :func:!array_distinct function.
  • Add :func:!split function.
  • Add :func:!degrees and :func:!radians functions.
  • Add :func:!to_base and :func:!from_base functions.
  • Rename config property task.shard.max-threads to task.max-worker-threads. This property sets the number of threads used to concurrently process splits. The old property name is deprecated and will be removed in a future release.
  • Fix referencing NULL values in :ref:row_type.
  • Make :ref:map_type comparable.
  • Fix leak of tasks blocked during query teardown.
  • Improve query queue config validation.