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https://issues.apache.org/jira/browse/HIVE-2956?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13272032#comment-13272032
]
Hudson commented on HIVE-2956:
------------------------------
Integrated in Hive-trunk-h0.21 #1421 (See
[https://builds.apache.org/job/Hive-trunk-h0.21/1421/])
HIVE-2956 Provide error message when using UDAF in the place of UDF instead
of throwing NPE (navis via kevinwilfong) (Revision 1336284)
Result = SUCCESS
kevinwilfong :
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1336284
Files :
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/parse/ErrorMsg.java
*
/hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/parse/TypeCheckProcFactory.java
* /hive/trunk/ql/src/test/queries/clientnegative/udaf_invalid_place.q
* /hive/trunk/ql/src/test/queries/clientnegative/udtf_invalid_place.q
* /hive/trunk/ql/src/test/results/clientnegative/udaf_invalid_place.q.out
* /hive/trunk/ql/src/test/results/clientnegative/udtf_invalid_place.q.out
> [hive] Provide error message when using UDAF in the place of UDF instead of
> throwing NPE
> ----------------------------------------------------------------------------------------
>
> Key: HIVE-2956
> URL: https://issues.apache.org/jira/browse/HIVE-2956
> Project: Hive
> Issue Type: Improvement
> Reporter: Navis
> Assignee: Navis
> Priority: Trivial
> Fix For: 0.10.0
>
> Attachments: HIVE-2956.D2823.1.patch, HIVE-2956.D2823.2.patch,
> HIVE-2956.D2823.3.patch
>
>
> For example,
> {code}
> hive> select distinct deptno, sum(deptno) from emp;
> FAILED: Hive Internal Error: java.lang.NullPointerException(null)
> java.lang.NullPointerException
> at
> org.apache.hadoop.hive.ql.plan.ExprNodeGenericFuncDesc.newInstance(ExprNodeGenericFuncDesc.java:214)
> at
> org.apache.hadoop.hive.ql.parse.TypeCheckProcFactory$DefaultExprProcessor.getXpathOrFuncExprNodeDesc(TypeCheckProcFactory.java:767)
> at
> org.apache.hadoop.hive.ql.parse.TypeCheckProcFactory$DefaultExprProcessor.process(TypeCheckProcFactory.java:888)
> at
> org.apache.hadoop.hive.ql.lib.DefaultRuleDispatcher.dispatch(DefaultRuleDispatcher.java:89)
> at
> org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.dispatch(DefaultGraphWalker.java:88)
> at
> org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.walk(DefaultGraphWalker.java:125)
> at
> org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.startWalking(DefaultGraphWalker.java:102)
> at
> org.apache.hadoop.hive.ql.parse.TypeCheckProcFactory.genExprNode(TypeCheckProcFactory.java:165)
> at
> org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genExprNodeDesc(SemanticAnalyzer.java:7755)
> at
> org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genExprNodeDesc(SemanticAnalyzer.java:7713)
> at
> org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genGroupByPlanMapGroupByOperator(SemanticAnalyzer.java:2793)
> at
> org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genGroupByPlanMapAggr1MR(SemanticAnalyzer.java:3651)
> at
> org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genBodyPlan(SemanticAnalyzer.java:6125)
> at
> org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genPlan(SemanticAnalyzer.java:6762)
> at
> org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.analyzeInternal(SemanticAnalyzer.java:7531)
> at
> org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:250)
> {code}
> Trivial.. but people always reports this confused by esoteric custom function
> names.
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