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Ran 18 Jan 2019 05:07PM UTC

Files 1026

Run time 8min

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Committed 18 Jan 2019 05:07PM UTC coverage: 79.317% (+5.2%) from 74.111%

Job # 1472.1

Build Type

push

jenkins

Committed by ravipesala

Commit Message

[CARBONDATA-3238] Solve StackOverflowError using MV datamap

【Problem】 An exception or error caused a run to abort. （Using MV）
java.lang.StackOverflowError
at org.apache.spark.sql.catalyst.expressions.AttributeMap6712anonfun.apply(AttributeMap.scala:34)
at org.apache.spark.sql.catalyst.expressions.AttributeMap6712anonfun.apply(AttributeMap.scala:34)
at scala.Option.map(Option.scala:146)
at org.apache.spark.sql.catalyst.expressions.AttributeMap.get(AttributeMap.scala:34)
at org.apache.spark.sql.catalyst.expressions.AttributeMap.contains(AttributeMap.scala:36)
at org.apache.carbondata.mv.rewrite.SelectSelectGroupbyChildDelta6712anonfun.applyOrElse(DefaultMatchMaker.scala:693)

【Cause】When column of table is lowcase and column of mv is uppercase and this column is the selected column(detail test case see the code), the tree node of this selected column in the logic plan tree have will be alias which has a child of attributeReference, when this code run in the sel_3q.transformExpressions in DefaultMatchMaker.scala, the executor rule will cause loop call in transformDown of TreeNode class。

【Solution】this executor rule only need be transformed twrice or less by one experssion(select and having), so define a flag to solve it

This closes #3058

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