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https://issues.apache.org/jira/browse/DRILL-6212?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16511774#comment-16511774
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ASF GitHub Bot commented on DRILL-6212:
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ilooner commented on issue #1319: DRILL-6212: Prevent recursive cast expressions
URL: https://github.com/apache/drill/pull/1319#issuecomment-397117397
@gparai It looks like this change copies the contents of
ProjectMergeRule.onMatch into DrillMergeProjectRule. Can we avoid doing that?
Also can you add a test that reproduces the original issue that you were
seeing.
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> A simple join is recursing too deep in planning and eventually throwing stack
> overflow.
> ---------------------------------------------------------------------------------------
>
> Key: DRILL-6212
> URL: https://issues.apache.org/jira/browse/DRILL-6212
> Project: Apache Drill
> Issue Type: Bug
> Components: Query Planning & Optimization
> Affects Versions: 1.12.0
> Reporter: Hanumath Rao Maduri
> Assignee: Gautam Kumar Parai
> Priority: Critical
> Fix For: 1.14.0
>
>
> Create two views using following statements.
> {code}
> create view v1 as select cast(greeting as int) f from
> dfs.`/home/mapr/data/json/temp.json`;
> create view v2 as select cast(greeting as int) f from
> dfs.`/home/mapr/data/json/temp.json`;
> {code}
> Executing the following join query produces a stack overflow during the
> planning phase.
> {code}
> select t1.f from dfs.tmp.v1 as t inner join dfs.tmp.v2 as t1 on cast(t.f as
> int) = cast(t1.f as int) and cast(t.f as int) = 10 and cast(t1.f as int) = 10;
> {code}
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