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https://issues.apache.org/jira/browse/SPARK-17075?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16181793#comment-16181793
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Ron Hu commented on SPARK-17075:
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This jira has been resolved. Pull request 19357 was added here by accident.
Pull request 19357 is fore [SPARK-21322].
> Cardinality Estimation of Predicate Expressions
> -----------------------------------------------
>
> Key: SPARK-17075
> URL: https://issues.apache.org/jira/browse/SPARK-17075
> Project: Spark
> Issue Type: Sub-task
> Components: Optimizer
> Affects Versions: 2.0.0
> Reporter: Ron Hu
> Assignee: Ron Hu
> Fix For: 2.2.0
>
>
> A filter condition is the predicate expression specified in the WHERE clause
> of a SQL select statement. A predicate can be a compound logical expression
> with logical AND, OR, NOT operators combining multiple single conditions. A
> single condition usually has comparison operators such as =, <, <=, >, >=,
> ‘like’, etc.
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