Release 0.109#
General#
- Add - slice(),- md5(),- array_min()and- array_max()functions.
- Fix bug that could cause queries submitted soon after startup to hang forever. 
- Fix bug that could cause - JOINqueries to hang forever, if the right side of the- JOINhad too little data or skewed data.
- Improve index join planning heuristics to favor streaming execution. 
- Improve validation of date/time literals. 
- Produce RPM package for Presto server. 
- Always redistribute data when writing tables to avoid skew. This can be disabled by setting the session property - redistribute_writesor the config property- redistribute-writesto false.
Remove “Big Query” support#
The experimental support for big queries has been removed in favor of
the new resource manager which can be enabled via the
experimental.cluster-memory-manager-enabled config option.
The experimental_big_query session property and the following config
options are no longer supported: experimental.big-query-initial-hash-partitions,
experimental.max-concurrent-big-queries and experimental.max-queued-big-queries.