Expression in sort by throws NPE
--------------------------------
Key: HIVE-1618
URL: https://issues.apache.org/jira/browse/HIVE-1618
Project: Hadoop Hive
Issue Type: Bug
Affects Versions: 0.7.0
Reporter: Paul Yang
A query such as:
SELECT count(1) FROM src SORT BY count(1);
Will throw a null pointer exception:
2010-09-07 15:27:27,059 ERROR ql.Driver (SessionState.java:printError(277)) -
FAILED: Hive Internal Error: java.lang.NullPointerException(null)
java.lang.NullPointerException
at
org.apache.hadoop.hive.ql.plan.ExprNodeGenericFuncDesc.newInstance(ExprNodeGenericFuncDesc.java:153)
at
org.apache.hadoop.hive.ql.parse.TypeCheckProcFactory$DefaultExprProcessor.getXpathOrFuncExprNodeDesc(TypeCheckProcFactory.java:587)
at
org.apache.hadoop.hive.ql.parse.TypeCheckProcFactory$DefaultExprProcessor.process(TypeCheckProcFactory.java:708)
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:128)
at
org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.startWalking(DefaultGraphWalker.java:102)
at
org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genExprNodeDesc(SemanticAnalyzer.java:6418)
at
org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genReduceSinkPlan(SemanticAnalyzer.java:4029)
at
org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genBodyPlan(SemanticAnalyzer.java:5148)
at
org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genPlan(SemanticAnalyzer.java:5661)
at
org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.analyzeInternal(SemanticAnalyzer.java:6229)
at
org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:240)
at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:326)
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