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Release 0.98

presto-docs/src/main/sphinx/release/release-0.98.rst

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============ Release 0.98

Array, Map, and Row Types

The memory representation of these types is now VariableWidthBlockEncoding instead of JSON.

.. note:: This is a backwards incompatible change with the previous representation, so if you have written a connector or function, you will need to update your code before deploying this release.

Hive Changes

  • Fix handling of ORC files with corrupt checkpoints.

SPI Changes

  • Rename Index to ConnectorIndex.

.. note:: This is a backwards incompatible change, so if you have written a connector that uses Index, you will need to update your code before deploying this release.

General Changes

  • Fix bug in UNNEST when output is unreferenced or partially referenced.
  • Make :func:!max and :func:!min functions work on all orderable types.
  • Optimize memory allocation in :func:!max_by and other places that Block is used.