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Posted to issues@tajo.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2014/08/04 05:36:11 UTC
[jira] [Commented] (TAJO-975) alias name which is the same to
existing column name may cause NPE during PPD
[ https://issues.apache.org/jira/browse/TAJO-975?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14084271#comment-14084271 ]
ASF GitHub Bot commented on TAJO-975:
-------------------------------------
Github user hyunsik commented on the pull request:
https://github.com/apache/tajo/pull/92#issuecomment-51014781
rebased.
> alias name which is the same to existing column name may cause NPE during PPD
> -----------------------------------------------------------------------------
>
> Key: TAJO-975
> URL: https://issues.apache.org/jira/browse/TAJO-975
> Project: Tajo
> Issue Type: Bug
> Components: planner/optimizer
> Reporter: Hyunsik Choi
> Assignee: Hyunsik Choi
> Priority: Minor
> Fix For: 0.9.0
>
>
> The following query will cause NPE. I attached the stacktrace.
> {code}
> SELECT
> T1.l_orderkey
> FROM
> LINEITEM
> INNER JOIN (
> SELECT
> T1.l_orderkey
> FROM (
> SELECT
> LINEITEM.l_orderkey AS l_orderkey
> FROM
> LINEITEM
> ) T1
> ) T1 ON LINEITEM.l_orderkey=T1.l_orderkey
> {code}
> {noformat}
> 2014-07-24 13:58:40,866 ERROR: org.apache.tajo.master.GlobalEngine (executeQuery(150)) -
> Stack Trace:
> java.lang.NullPointerException
> at org.apache.tajo.engine.planner.rewrite.ProjectionPushDownRule$TargetListManager.getTarget(ProjectionPushDownRule.java:311)
> at org.apache.tajo.engine.planner.rewrite.ProjectionPushDownRule$TargetListManager$FilteredTargetIterator.<init>(ProjectionPushDownRule.java:362)
> at org.apache.tajo.engine.planner.rewrite.ProjectionPushDownRule$TargetListManager.getFilteredTargets(ProjectionPushDownRule.java:352)
> at org.apache.tajo.engine.planner.rewrite.ProjectionPushDownRule.visitScan(ProjectionPushDownRule.java:1053)
> at org.apache.tajo.engine.planner.rewrite.ProjectionPushDownRule.visitScan(ProjectionPushDownRule.java:43)
> at org.apache.tajo.engine.planner.BasicLogicalPlanVisitor.visit(BasicLogicalPlanVisitor.java:102)
> at org.apache.tajo.engine.planner.BasicLogicalPlanVisitor.visitProjection(BasicLogicalPlanVisitor.java:155)
> at org.apache.tajo.engine.planner.rewrite.ProjectionPushDownRule.visitProjection(ProjectionPushDownRule.java:457)
> at org.apache.tajo.engine.planner.rewrite.ProjectionPushDownRule.visitProjection(ProjectionPushDownRule.java:43)
> at org.apache.tajo.engine.planner.BasicLogicalPlanVisitor.visit(BasicLogicalPlanVisitor.java:63)
> at org.apache.tajo.engine.planner.BasicLogicalPlanVisitor.visitTableSubQuery(BasicLogicalPlanVisitor.java:269)
> at org.apache.tajo.engine.planner.rewrite.ProjectionPushDownRule.visitTableSubQuery(ProjectionPushDownRule.java:1106)
> at org.apache.tajo.engine.planner.rewrite.ProjectionPushDownRule.visitTableSubQuery(ProjectionPushDownRule.java:43)
> at org.apache.tajo.engine.planner.BasicLogicalPlanVisitor.visit(BasicLogicalPlanVisitor.java:99)
> at org.apache.tajo.engine.planner.BasicLogicalPlanVisitor.visitProjection(BasicLogicalPlanVisitor.java:155)
> at org.apache.tajo.engine.planner.rewrite.ProjectionPushDownRule.visitProjection(ProjectionPushDownRule.java:457)
> at org.apache.tajo.engine.planner.rewrite.ProjectionPushDownRule.visitProjection(ProjectionPushDownRule.java:43)
> at org.apache.tajo.engine.planner.BasicLogicalPlanVisitor.visit(BasicLogicalPlanVisitor.java:63)
> at org.apache.tajo.engine.planner.BasicLogicalPlanVisitor.visitTableSubQuery(BasicLogicalPlanVisitor.java:269)
> at org.apache.tajo.engine.planner.rewrite.ProjectionPushDownRule.visitTableSubQuery(ProjectionPushDownRule.java:1106)
> at org.apache.tajo.engine.planner.rewrite.ProjectionPushDownRule.visitTableSubQuery(ProjectionPushDownRule.java:43)
> at org.apache.tajo.engine.planner.BasicLogicalPlanVisitor.visit(BasicLogicalPlanVisitor.java:99)
> at org.apache.tajo.engine.planner.rewrite.ProjectionPushDownRule.visitJoin(ProjectionPushDownRule.java:888)
> at org.apache.tajo.engine.planner.rewrite.ProjectionPushDownRule.visitJoin(ProjectionPushDownRule.java:43)
> at org.apache.tajo.engine.planner.BasicLogicalPlanVisitor.visit(BasicLogicalPlanVisitor.java:87)
> at org.apache.tajo.engine.planner.BasicLogicalPlanVisitor.visitProjection(BasicLogicalPlanVisitor.java:155)
> at org.apache.tajo.engine.planner.rewrite.ProjectionPushDownRule.visitProjection(ProjectionPushDownRule.java:457)
> at org.apache.tajo.engine.planner.rewrite.ProjectionPushDownRule.visitProjection(ProjectionPushDownRule.java:43)
> at org.apache.tajo.engine.planner.BasicLogicalPlanVisitor.visit(BasicLogicalPlanVisitor.java:63)
> at org.apache.tajo.engine.planner.BasicLogicalPlanVisitor.visitRoot(BasicLogicalPlanVisitor.java:145)
> at org.apache.tajo.engine.planner.rewrite.ProjectionPushDownRule.visitRoot(ProjectionPushDownRule.java:440)
> at org.apache.tajo.engine.planner.rewrite.ProjectionPushDownRule.visitRoot(ProjectionPushDownRule.java:43)
> at org.apache.tajo.engine.planner.BasicLogicalPlanVisitor.visit(BasicLogicalPlanVisitor.java:58)
> at org.apache.tajo.engine.planner.rewrite.ProjectionPushDownRule.rewrite(ProjectionPushDownRule.java:77)
> at org.apache.tajo.engine.planner.rewrite.BasicQueryRewriteEngine.rewrite(BasicQueryRewriteEngine.java:63)
> at org.apache.tajo.engine.planner.LogicalOptimizer.optimize(LogicalOptimizer.java:101)
> at org.apache.tajo.master.GlobalEngine.createLogicalPlan(GlobalEngine.java:475)
> at org.apache.tajo.master.GlobalEngine.executeQuery(GlobalEngine.java:145)
> {noformat}
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