Release 0.280 Details General Changes Resource Groups Changes Hive Connector Changes Credits Release 0.280 Details General Changes Fix a race condition, where if a...

Delta Lake Connector Overview Configuration Configuration Properties Querying Delta Lake Tables Delta Lake Connector Overview This connector allows reading Delta Lake tabl...

4.7. Function Namespace Managers Configuration Configuration Reference 4.7. Function Namespace Managers Warning This is an experimental feature being actively developed. The...

4.7. Function Namespace Managers Configuration Configuration Reference 4.7. Function Namespace Managers Warning This is an experimental feature being actively developed. The...

replace_empty description Syntax example keywords replace_empty description Syntax Since 2.1.5 VARCHAR REPLACE_EMPTY (VARCHAR str, VARCHAR old, VARCHAR new) Replace all...

7.23. Quantile Digest Functions Data Structures Functions 7.23. Quantile Digest Functions Presto implements the approx_percentile function with the quantile digestdata struc...

13.117. Release 0.137 General Changes Hive Changes 13.117. Release 0.137 General Changes Fix current_date to return correct results for all time zones. Fix invalid plans ...

Release 0.280 Details General Changes Resource Groups Changes Hive Changes Credits Release 0.280 Details General Changes Fix a race condition, where if a query was su...

Migrating From Hive Use subscript for accessing a dynamic index of an array instead of a udf Avoid out of bounds access of arrays Use ANSI SQL syntax for arrays Use ANSI SQL syn...

数据转换 数据转换 数据转换 数据转换 通过作业服务和目录服务，Alluxio可以将一个表转换为新表。如果表未分区，则转换是在表级运行的。如果表已分区，则转换将在分区级运行。原始表的数据是不会被修改的，新表的数据将在Alluxio管理的新存储位置永久保留。一旦转换完成后，Presto用户可以透明地查询新数据。 目前有两种支持的转...