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https://issues.apache.org/jira/browse/HIVE-6208?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jason Dere updated HIVE-6208:
-----------------------------
Status: Patch Available (was: Open)
> user-defined aggregate functions cannot be used as windowing function
> ---------------------------------------------------------------------
>
> Key: HIVE-6208
> URL: https://issues.apache.org/jira/browse/HIVE-6208
> Project: Hive
> Issue Type: Bug
> Components: UDF
> Reporter: Jason Dere
> Assignee: Jason Dere
> Attachments: HIVE-6208.1.patch
>
>
> Function registry does a pass to register all GenericUDAFs as window
> functions. However any aggregate functions added after this (such as a
> user-added temporary function) don't work as window functions:
> hive> create temporary function mysum as
> 'org.apache.hadoop.hive.ql.udf.generic.GenericUDAFSum';
> OK
> Time taken: 0.0050 seconds
> hive> explain select mysum(key) over () from src;
>
> FAILED: NullPointerException null
> java.lang.NullPointerException
> at
> org.apache.hadoop.hive.ql.parse.PTFTranslator.translate(PTFTranslator.java:354)
> at
> org.apache.hadoop.hive.ql.parse.PTFTranslator.translate(PTFTranslator.java:194)
> at
> org.apache.hadoop.hive.ql.parse.WindowingComponentizer.next(WindowingComponentizer.java:86)
> at
> org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genWindowingPlan(SemanticAnalyzer.java:10721)
> at
> org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genPostGroupByBodyPlan(SemanticAnalyzer.java:7904)
> at
> org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genBodyPlan(SemanticAnalyzer.java:7862)
> at
> org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genPlan(SemanticAnalyzer.java:8678)
> at
> org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.analyzeInternal(SemanticAnalyzer.java:8904)
> at
> org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:310)
> at
> org.apache.hadoop.hive.ql.parse.ExplainSemanticAnalyzer.analyzeInternal(ExplainSemanticAnalyzer.java:65)
> at
> org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:310)
> at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:440)
> at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:340)
> at org.apache.hadoop.hive.ql.Driver.compileInternal(Driver.java:996)
> at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1039)
> at org.apache.hadoop.hive.ql.Driver.run(Driver.java:932)
> at org.apache.hadoop.hive.ql.Driver.run(Driver.java:922)
> at
> org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:268)
> at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:220)
> at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:424)
> at
> org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:792)
> at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:686)
> at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:625)
> 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:212)
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