[jira] [Created] (DRILL-3746) Hive partition pruning fails if the table contains external partitions

["Venki Korukanti (JIRA)" <ji...@apache.org>]

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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