Presto 0.191 Documentation

11.16. Release 0.176

11.16. Release 0.176

General Changes

  • Fix an issue where a query (and some of its tasks) continues to consume CPU/memory on the coordinator and workers after the query fails.
  • Fix a regression that cause the GC overhead and pauses to increase significantly when processing maps.
  • Fix a memory tracking bug that causes the memory to be overestimated for GROUP BY queries on bigint columns.
  • Improve the performance of the transform_values() function.
  • Add support for casting from JSON to REAL type.
  • Add parse_duration() function.

MySQL Changes

  • Disallow having a database in the connection-url config property.

Accumulo Changes

  • Decrease planning time by fetching index metrics in parallel.

MongoDB Changes

  • Allow predicate pushdown for ObjectID.