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https://issues.apache.org/jira/browse/SPARK-23021?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16323623#comment-16323623
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Takeshi Yamamuro commented on SPARK-23021:
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yea, sure, I have bandwidth to do :))
Is the fix above is correct? cc: [~smilegator] [~viirya]
Or, we need to totally cut off AnalysisBarrier in explain results?
> AnalysisBarrier should not cut off the explain output for Parsed Logical Plan
> -----------------------------------------------------------------------------
>
> Key: SPARK-23021
> URL: https://issues.apache.org/jira/browse/SPARK-23021
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.3.0
> Reporter: Kris Mok
>
> In PR#20094 as a follow up to SPARK-20392, there were some fixes to the
> handling of {{AnalysisBarrier}}, but there seem to be more cases that need to
> be fixed.
> One such case is that right now the Parsed Logical Plan in explain output
> would be cutoff by {{AnalysisBarrier}}, e.g.
> {code:none}
> scala> val df1 = spark.range(1).select('id as 'x, 'id + 1 as
> 'y).repartition(1).select('x === 'y)
> df1: org.apache.spark.sql.DataFrame = [(x = y): boolean]
> scala> df1.explain(true)
> == Parsed Logical Plan ==
> 'Project [('x = 'y) AS (x = y)#22]
> +- AnalysisBarrier Repartition 1, true
> == Analyzed Logical Plan ==
> (x = y): boolean
> Project [(x#16L = y#17L) AS (x = y)#22]
> +- Repartition 1, true
> +- Project [id#13L AS x#16L, (id#13L + cast(1 as bigint)) AS y#17L]
> +- Range (0, 1, step=1, splits=Some(8))
> == Optimized Logical Plan ==
> Project [(x#16L = y#17L) AS (x = y)#22]
> +- Repartition 1, true
> +- Project [id#13L AS x#16L, (id#13L + 1) AS y#17L]
> +- Range (0, 1, step=1, splits=Some(8))
> == Physical Plan ==
> *Project [(x#16L = y#17L) AS (x = y)#22]
> +- Exchange RoundRobinPartitioning(1)
> +- *Project [id#13L AS x#16L, (id#13L + 1) AS y#17L]
> +- *Range (0, 1, step=1, splits=8)
> {code}
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