Drill 1.9.0-1703 Release Notes

The following release notes apply to the 1.9.0 version of the Apache Drill component included in the MapR Converged Data Platform.

Version	1.9.0
Release Date	April 2017
MapR Version Interoperability	MapR Drill 1.9.0 is certified on the MapR v5.1.0 and v 5.2.0 converged data platform. See EEP Components and OS Support, Interoperability Matrix, and Drill Support Matrix.
Package Names	Package Names for Ezmeral Ecosystem Packs (EEPs)

New in This Release

None

Fixes

This MapR release includes the following fixes on the base release:

MapR Fix Number	Description
MD-1433	The planning stage now has better performance for queries against HPE Ezmeral Data Fabric Database binary tables.
MD-1375	FileNotFoundException no longer displays when reading a parquet file.
MD-1314	The same query no longer produces different results when using the flatten operator.
Drill-5395	Region to fragment assignment logic no longer causes queries against HPE Ezmeral Data Fabric Database tables to fail with a null pointer exception.
Drill-5159	Drill MergeProjectRule now operates on Calcite logical convention.
Drill-5117	Queries on json files with 1000+ columns no longer fail with a compile error.
Drill-5056	UserException now writes more information to the log.

Known Issues

The following table lists the known issues in Drill 1.9.0:

Issue	Description
MD-1256	The MAPR_TICKETFILE_LOCATION variable in drill-env.sh needs to be unset so that a user other than the mapr user can connect to Drill through SQLLine and MapR-SASL.
MD-1229	Hive table partition pruning does not prune out all unnecessary partitions in some scenarios.
MD-1226	MapR-SASL plain authentication goes through Kerberos, by default, requiring regular users to have a valid Kerberos ticket when connecting to Drill using SQLLine through ZooKeeper.
MD-1208	Parquet filter pushdown does not prune enough partitions in queries where the predicate contains the TIME data type.