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2020-04-20 22:53:55
12.83. Release 0.154
General Changes
- Fix planning issue that could cause
JOIN
queries involving functionsthat return null on non-null input to produce incorrect results. - Fix regression that would cause certain queries involving uncorrelatedsubqueries in
IN
predicates to fail during planning. - Fix potential “Input symbols do not match output symbols”error when writing to bucketed tables.
- Fix potential “Requested array size exceeds VM limit” errorthat triggers the JVM’s
OutOfMemoryError
handling. - Improve performance of window functions with identical partitioning andordering but different frame specifications.
- Add
code-cache-collection-threshold
config which controls when Prestowill attempt to force collection of the JVM code cache and reduce thedefault threshold to 40%
. - Add support for using
LIKE
with CREATE TABLE. - Add support for
DESCRIBE INPUT
to describe the requirements forthe input parameters to a prepared statement.
Hive Changes
- Fix handling of metastore cache TTL. With the introduction of theper-transaction cache, the cache timeout was reset after each access,which means cache entries might never expire.