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https://issues.apache.org/jira/browse/HIVE-3926?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13578132#comment-13578132
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Navis commented on HIVE-3926:
-----------------------------
This issue also resolves single sourced multi scan with virtual columns. For
example, the query
<code>
SELECT a.INPUT__FILE__NAME,a.key,a.value,b.INPUT__FILE__NAME,b.key,b.value FROM
myinput1 a LEFT OUTER JOIN myinput1 b RIGHT OUTER JOIN myinput1 c ON a.value =
b.value and b.value = c.value AND a.key > 40 AND a.value > 50 AND a.key =
a.value AND b.key > 40 AND b.value > 50 AND b.key = b.value AND c.key > 40 AND
c.value > 50 AND c.key = c.value;
<code>
is not working in trunk, throwing
{code}
Caused by: java.lang.ClassCastException:
org.apache.hadoop.hive.serde2.lazy.LazyStruct cannot be cast to
[Ljava.lang.Object;
at
org.apache.hadoop.hive.serde2.objectinspector.UnionStructObjectInspector.getStructFieldData(UnionStructObjectInspector.java:123)
at
org.apache.hadoop.hive.serde2.objectinspector.UnionStructObjectInspector.getStructFieldData(UnionStructObjectInspector.java:131)
at
org.apache.hadoop.hive.ql.exec.ExprNodeColumnEvaluator.evaluate(ExprNodeColumnEvaluator.java:98)
at
org.apache.hadoop.hive.ql.exec.ReduceSinkOperator.processOp(ReduceSinkOperator.java:233)
at org.apache.hadoop.hive.ql.exec.Operator.process(Operator.java:522)
at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:850)
at
org.apache.hadoop.hive.ql.exec.TableScanOperator.processOp(TableScanOperator.java:90)
at org.apache.hadoop.hive.ql.exec.Operator.process(Operator.java:522)
at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:850)
at
org.apache.hadoop.hive.ql.exec.MapOperator.process(MapOperator.java:657)
{code}
> PPD on virtual column of partitioned table is not working
> ---------------------------------------------------------
>
> Key: HIVE-3926
> URL: https://issues.apache.org/jira/browse/HIVE-3926
> Project: Hive
> Issue Type: Bug
> Components: Query Processor
> Reporter: Navis
> Assignee: Navis
> Priority: Minor
> Attachments: HIVE-3926.D8121.1.patch, HIVE-3926.D8121.2.patch
>
>
> {code}
> select * from src where BLOCK__OFFSET__INSIDE__FILE<100;
> {code}
> is working, but
> {code}
> select * from srcpart where BLOCK__OFFSET__INSIDE__FILE<100;
> {code}
> throws SemanticException. Disabling PPD makes it work.
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