Venki Korukanti created DRILL-3746:
--------------------------------------
Summary: Hive partition pruning fails if the table contains
external partitions
Key: DRILL-3746
URL: https://issues.apache.org/jira/browse/DRILL-3746
Project: Apache Drill
Issue Type: Bug
Reporter: Venki Korukanti
If Hive contains a table which has external partitions, Drill fails in
partition pruning code, which causes the query to fail.
{code}
CREATE TABLE external_partition_test (boolean_field BOOLEAN) PARTITIONED BY
(boolean_part BOOLEAN);
ALTER TABLE external_partition_test ADD PARTITION (boolean_part='true')
LOCATION '/some/path';
ALTER TABLE external_partition_test ADD PARTITION (boolean_part='false')
LOCATION '/some/path';
{code}
Exception:
{code}
java.lang.StringIndexOutOfBoundsException
String index out of range: -14
at java.lang.String.substring(String.java:1875) ~[na:1.7.0_45]
at
org.apache.drill.exec.planner.sql.HivePartitionLocation.<init>(HivePartitionLocation.java:31)
~[classes/:na]
at
org.apache.drill.exec.planner.sql.HivePartitionDescriptor.getPartitions(HivePartitionDescriptor.java:117)
~[classes/:na]
at
org.apache.drill.exec.planner.logical.partition.PruneScanRule.doOnMatch(PruneScanRule.java:185)
~[classes/:na]
at
org.apache.drill.exec.planner.sql.logical.HivePushPartitionFilterIntoScan$2.onMatch(HivePushPartitionFilterIntoScan.java:92)
~[classes/:na]
at
org.apache.calcite.plan.volcano.VolcanoRuleCall.onMatch(VolcanoRuleCall.java:228)
~[calcite-core-1.4.0-drill-r0.jar:1.4.0-drill-r0]
{code}
Looking at the {{HivePartitionLocation}}, it looks like we are depending on the
structure of the files on FileSystem to get the partition values. We should get
these partition from MetaStore.
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