Drill 1.12.0-1808 Release Notes

This section provides reference information for fixes in Drill 1.12.0-1808.

The following release notes apply to the 1.12.0-1808 version of the Drill component:

Version 1.12.0-1808
Release Date September 2018
MapR Version Interoperability Component Versions for Released MEPs.
Package Names Navigate to https://package.mapr.com/releases/MEP/, and select your MEP and OS to view the list of package names, for example:
  • mapr-drill-1.12.0.201807100435-1.noarch.rpm
  • mapr-drill-internal-1.12.0.201807100435-1.noarch.rpm
  • mapr-drill-yarn-1.12.0.201807100435-1.noarch.rpm

Fixes

Drill 1.12.0-1808 provides the following fixes:
Fix Tracking Numbers Descriptions
MD-4509 Query plans with CAST indexes are generated for LIKE filters with CAST functions.
MD-4444 Issuing the CTAS command against a MapR Database table no longer returns a NullPointerException.
MD-4156 Queries on a single Parquet column no longer fail with an ArrayIndexOutOfBoundsException.
MD-4048 The io.dropwizard.metrics have been removed from Drill.
MD-3979 Queries that use CAST index plans no longer fail with a NullPointerException.
MD-3716 (DRILL-6223) Queries on complex nested data in Parquet files no longer fail when selecting on all columns.
MD-3544 Queries on complex nested data in Parquet files no longer fail.
DRILL-6557 Drill no longer fetches all the input splits when Hive statistics provide the number of bytes, which improves query planning time for queries on Hive data.
DRILL-6204 When the store.hive.optimize_scan_with_native_readers option is enabled, Drill separates the partitioned columns from the non-partition columns when reading Hive data directly from the filesystem. This prevents Drill from returning an error if the reader cannot find partitioned columns in the table schema.
DRILL-6195 Drill can query Hive partitioned bucketed tables.
DRILL-6164 Drill no longer returns out-of-memory errors due to memory leaks caused by the buildup of Parquet reader references that the scanner does not remove.
DRILL-5978 Hive libraries are updated to version 2.1.2-mapr-1710.
DRILL-4185 Drill supports queries with JOIN and UNION [ALL] operators on empty directories.

Known Issues and Limitations

See the Drill 1.12.0-1801 release notes.