[HIVE-2752] Index names are case sensitive

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.9.0
• Fix Version/s: 0.13.0
• Component/s: Indexing, Metastore, Query Processor
• Assignee: Navis Ryu
• Reporter: Philip Tromans
• Created: 26/Jan/12 11:29
• Updated: 29/Mar/14 06:10
• Resolved: 27/Mar/14 15:31

Description

The following script:

DROP TABLE IF EXISTS TestTable;

CREATE TABLE TestTable (a INT);

DROP INDEX IF EXISTS TestTableA_IDX ON TestTable;

CREATE INDEX TestTableA_IDX ON TABLE TestTable (a) AS 'org.apache.hadoop.hive.ql.index.compact.CompactIndexHandler' WITH DEFERRED REBUILD;

ALTER INDEX TestTableA_IDX ON TestTable REBUILD;

results in the following exception:

MetaException(message:index testtablea_idx doesn't exist)
at org.apache.hadoop.hive.metastore.ObjectStore.alterIndex(ObjectStore.java:1880)
at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler$30.run(HiveMetaStore.java:1930)
at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler$30.run(HiveMetaStore.java:1927)
at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.executeWithRetry(HiveMetaStore.java:356)
at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.alter_index(HiveMetaStore.java:1927)
at org.apache.hadoop.hive.metastore.HiveMetaStoreClient.alter_index(HiveMetaStoreClient.java:868)
at org.apache.hadoop.hive.ql.metadata.Hive.alterIndex(Hive.java:398)
at org.apache.hadoop.hive.ql.exec.DDLTask.alterIndex(DDLTask.java:902)
at org.apache.hadoop.hive.ql.exec.DDLTask.execute(DDLTask.java:236)
at org.apache.hadoop.hive.ql.exec.Task.executeTask(Task.java:134)
at org.apache.hadoop.hive.ql.exec.TaskRunner.runSequential(TaskRunner.java:57)
at org.apache.hadoop.hive.ql.Driver.launchTask(Driver.java:1332)
at org.apache.hadoop.hive.ql.Driver.execute(Driver.java:1123)
at org.apache.hadoop.hive.ql.Driver.run(Driver.java:931)
at org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:255)
at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:212)
at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:403)
at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:338)
at org.apache.hadoop.hive.cli.CliDriver.processReader(CliDriver.java:436)
at org.apache.hadoop.hive.cli.CliDriver.processFile(CliDriver.java:446)
at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:642)
at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:554)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.hadoop.util.RunJar.main(RunJar.java:156)

When you execute: "SHOW INDEXES ON TestTable;", you get:

TestTableA_IDX testtable a default_testtable_testtablea_idx_ compact

so it looks like things don't get lower cased when they go into the metastore, but they do when the rebuild op is trying to execute.