Github
来源:Presto
浏览 359
扫码
分享
2020-04-20 22:52:11
12.8. Release 0.228
General Changes
- Reduce excessive memory usage by ExchangeClient.
- Improve coordinator stability on parsing functions that may create large constantarrays/maps/rows (e.g.,
SEQUENCE
, REPEAT
, ARRAY[…]
, etc) by delaying theevaluation 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.