Presto 0.229 Documentation

11.2. Release 0.228

11.2. Release 0.228

General Changes

  • Reduce excessive memory usage by ExchangeClient.
  • Improve coordinator stability on parsing functions that may create large constant arrays/maps/rows (e.g., SEQUENCE, REPEAT, ARRAY[...], etc) by delaying the evaluation on these functions on workers.
  • Optimize queries with LIMIT 0.
  • Allow Bing Tiles at zoom level 0.

Hive Changes

  • Fix ORC writer rollback failure due to exception thrown during rollback.
  • Improve ORC read performance for variants and fixed width numbers.

Spi Changes

  • Move most RowExpression utilities to the presto-expressions module.