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Posted to dev@hive.apache.org by "Navis (JIRA)" <ji...@apache.org> on 2012/07/05 04:21:33 UTC
[jira] [Updated] (HIVE-3226) ColumnPruner is not working on
LateralView
[ https://issues.apache.org/jira/browse/HIVE-3226?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Navis updated HIVE-3226:
------------------------
Status: Patch Available (was: Open)
https://reviews.facebook.net/D3987
> ColumnPruner is not working on LateralView
> ------------------------------------------
>
> Key: HIVE-3226
> URL: https://issues.apache.org/jira/browse/HIVE-3226
> Project: Hive
> Issue Type: Bug
> Components: Query Processor
> Affects Versions: 0.10.0
> Reporter: Navis
> Assignee: Navis
>
> Column pruning is not applied to LVJ and SEL operator, which makes exceptions at various stages. For example,
> {noformat}
> drop table array_valued_src;
> create table array_valued_src (key string, value array<string>);
> insert overwrite table array_valued_src select key, array(value) from src;
> select sum(val) from (select a.key as key, b.value as array_val from src a join array_valued_src b on a.key=b.key) i lateral view explode (array_val) c as val;
> ... 9 more
> Caused by: java.lang.RuntimeException: Reduce operator initialization failed
> at org.apache.hadoop.hive.ql.exec.ExecReducer.configure(ExecReducer.java:157)
> ... 14 more
> Caused by: java.lang.RuntimeException: cannot find field _col0 from [0:_col5]
> at org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorUtils.getStandardStructFieldRef(ObjectInspectorUtils.java:345)
> at org.apache.hadoop.hive.serde2.objectinspector.StandardStructObjectInspector.getStructFieldRef(StandardStructObjectInspector.java:143)
> at org.apache.hadoop.hive.ql.exec.ExprNodeColumnEvaluator.initialize(ExprNodeColumnEvaluator.java:57)
> at org.apache.hadoop.hive.ql.exec.Operator.initEvaluators(Operator.java:896)
> at org.apache.hadoop.hive.ql.exec.Operator.initEvaluatorsAndReturnStruct(Operator.java:922)
> at org.apache.hadoop.hive.ql.exec.SelectOperator.initializeOp(SelectOperator.java:60)
> at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:357)
> at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:433)
> at org.apache.hadoop.hive.ql.exec.Operator.initializeChildren(Operator.java:389)
> at org.apache.hadoop.hive.ql.exec.JoinOperator.initializeOp(JoinOperator.java:62)
> at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:357)
> at org.apache.hadoop.hive.ql.exec.ExecReducer.configure(ExecReducer.java:150)
> {noformat}
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