ORDER BY should support column position expressions
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Key: HIVE-1947
URL: https://issues.apache.org/jira/browse/HIVE-1947
Project: Hive
Issue Type: Improvement
Reporter: Carl Steinbach
The ORDER BY clause does not support column position expresssions, e.g:
{code}
hive> select a.category_desc from lu_category a join lu_subcateg b on
a.category_id=b.category_id order by 1;
FAILED: Hive Internal Error: java.lang.NullPointerException(null)
java.lang.NullPointerException
at
org.apache.hadoop.hive.ql.optimizer.ReduceSinkDeDuplication$ReduceSinkDeduplicateProcFactory
$ReducerReducerProc.getPartitionAndKeyColumnMapping(ReduceSinkDeDuplication.java:406)
at
org.apache.hadoop.hive.ql.optimizer.ReduceSinkDeDuplication$ReduceSinkDeduplicateProcFactory
$ReducerReducerProc.process(ReduceSinkDeDuplication.java:157)
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.optimizer.ReduceSinkDeDuplication.transform(ReduceSinkDeDuplication.java:88)
at
org.apache.hadoop.hive.ql.optimizer.Optimizer.optimize(Optimizer.java:83)
at
org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.analyzeInternal(SemanticAnalyzer.java:6124)
at
org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:125)
at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:304)
at org.apache.hadoop.hive.ql.Driver.run(Driver.java:379)
at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:138)
at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:197)
at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:302)
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)
{code}
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