Presto 0.191 Documentation

11.38. Release 0.155

11.38. Release 0.155

General Changes

  • Fix incorrect results when queries contain multiple grouping sets that resolve to the same set.
  • Fix incorrect results when using map with IN predicates.
  • Fix compile failure for outer joins that have a complex join criteria.
  • Fix error messages for failures during commit.
  • Fix memory accounting for simple aggregation, top N and distinct queries. These queries may now report higher memory usage than before.
  • Reduce unnecessary memory usage of map_agg(), multimap_agg() and map_union().
  • Make INCLUDING, EXCLUDING and PROPERTIES non-reserved keywords.
  • Remove support for the experimental feature to compute approximate queries based on sampled tables.
  • Properly account for time spent creating page source.
  • Various optimizations to reduce coordinator CPU usage.

Hive Changes

  • Fix schema evolution support in new Parquet reader.
  • Fix NoClassDefFoundError when using Hadoop KMS.
  • Add support for Avro file format.
  • Always produce dictionary blocks for DWRF dictionary encoded streams.

SPI Changes

  • Remove legacy connector API.