[jira] [Created] (HIVE-21799) NullPointerException in DynamicPartitionPruningOptimization, when join key is on aggregation column

["Jason Dere (JIRA)" <ji...@apache.org>]

Jason Dere created HIVE-21799:
---------------------------------

             Summary: NullPointerException in DynamicPartitionPruningOptimization, when join key is on aggregation column
                 Key: HIVE-21799
                 URL: https://issues.apache.org/jira/browse/HIVE-21799
             Project: Hive
          Issue Type: Bug
          Components: Query Planning
            Reporter: Jason Dere
            Assignee: Jason Dere


Following table/query results in NPE:

{noformat}
create table tez_no_dynpart_hashjoin_on_agg(id int, outcome string, eventid int) stored as orc;

explain select a.id, b.outcome from (select id, max(eventid) as event_id_max from tez_no_dynpart_hashjoin_on_agg group by id) a 
LEFT OUTER JOIN tez_no_dynpart_hashjoin_on_agg b 
on a.event_id_max = b.eventid;
{noformat}

Stack trace:
{noformat}
java.lang.NullPointerException
        at org.apache.hadoop.hive.ql.optimizer.DynamicPartitionPruningOptimization.generateSemiJoinOperatorPlan(DynamicPartitionPruningOptimization.java:608)
        at org.apache.hadoop.hive.ql.optimizer.DynamicPartitionPruningOptimization.process(DynamicPartitionPruningOptimization.java:239)
        at org.apache.hadoop.hive.ql.lib.DefaultRuleDispatcher.dispatch(DefaultRuleDispatcher.java:90)
        at org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.dispatchAndReturn(DefaultGraphWalker.java:105)
        at org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.dispatch(DefaultGraphWalker.java:89)
        at org.apache.hadoop.hive.ql.lib.ForwardWalker.walk(ForwardWalker.java:74)
        at org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.startWalking(DefaultGraphWalker.java:120)
        at org.apache.hadoop.hive.ql.parse.TezCompiler.runDynamicPartitionPruning(TezCompiler.java:584)
        at org.apache.hadoop.hive.ql.parse.TezCompiler.optimizeOperatorPlan(TezCompiler.java:165)
        at org.apache.hadoop.hive.ql.parse.TaskCompiler.compile(TaskCompiler.java:159)
        at org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.analyzeInternal(SemanticAnalyzer.java:12562)
        at org.apache.hadoop.hive.ql.parse.CalcitePlanner.analyzeInternal(CalcitePlanner.java:370)
        at org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:289)
        at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:671)
        at org.apache.hadoop.hive.ql.Driver.compileInternal(Driver.java:1905)
        at org.apache.hadoop.hive.ql.Driver.compileAndRespond(Driver.java:1852)
        at org.apache.hadoop.hive.ql.Driver.compileAndRespond(Driver.java:1847)
        at org.apache.hadoop.hive.ql.reexec.ReExecDriver.compileAndRespond(ReExecDriver.java:126)
        at org.apache.hadoop.hive.ql.reexec.ReExecDriver.run(ReExecDriver.java:219)
        at org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:242)
        at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:189)
        at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:408)
        at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:340)
        at org.apache.hadoop.hive.ql.QTestUtil.executeClientInternal(QTestUtil.java:676)
        at org.apache.hadoop.hive.ql.QTestUtil.executeClient(QTestUtil.java:647)
        at org.apache.hadoop.hive.cli.control.CoreCliDriver.runTest(CoreCliDriver.java:182)
        at org.apache.hadoop.hive.cli.control.CliAdapter.runTest(CliAdapter.java:104)
        at org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver(TestMiniLlapLocalCliDriver.java:59)
{noformat}



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