[jira] [Commented] (SPARK-27087) Inability to access to column alias in pyspark
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https://issues.apache.org/jira/browse/SPARK-27087?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16790929#comment-16790929
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Thincrs commented on SPARK-27087:
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A user of thincrs has selected this issue. Deadline: Tue, Mar 19, 2019 7:41 PM
> Inability to access to column alias in pyspark
> --
>
> Key: SPARK-27087
> URL: https://issues.apache.org/jira/browse/SPARK-27087
> Project: Spark
> Issue Type: Bug
> Components: PySpark
>Affects Versions: 2.4.0
>Reporter: Vincent
>Priority: Minor
>
> In pyspark I have the following:
> {code:java}
> import pyspark.sql.functions as F
> cc = F.lit(1).alias("A")
> print(cc)
> print(cc._jc.toString())
> {code}
> I get :
> {noformat}
> Column
> 1 AS `A`
> {noformat}
> Is there any way for me to just print "A" from cc ? it seems I'm unable to
> extract the alias programatically from the column object.
> Also I think that in spark-sql in scala, if I print "cc" it would just print
> "A" instead, so this seem like a bug or a missing feature to me
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[jira] [Commented] (SPARK-27087) Inability to access to column alias in pyspark
[
https://issues.apache.org/jira/browse/SPARK-27087?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16787732#comment-16787732
]
Hyukjin Kwon commented on SPARK-27087:
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Scala side shows the same output as well:
{code}
scala> import org.apache.spark.sql.functions._
import org.apache.spark.sql.functions._
scala> lit(1).alias("A").toString
res2: String = 1 AS `A`
{code}
It shows the expression as is. So it's correct to show the expression in string
as is. not a bug or missing feature.
> Inability to access to column alias in pyspark
> --
>
> Key: SPARK-27087
> URL: https://issues.apache.org/jira/browse/SPARK-27087
> Project: Spark
> Issue Type: Bug
> Components: PySpark
>Affects Versions: 2.4.0
>Reporter: Vincent
>Priority: Minor
>
> In pyspark I have the following:
> {code:java}
> import pyspark.sql.functions as F
> cc = F.lit(1).alias("A")
> print(cc)
> print(cc._jc.toString())
> {code}
> I get :
> {noformat}
> Column
> 1 AS `A`
> {noformat}
> Is there any way for me to just print "A" from cc ? it seems I'm unable to
> extract the alias programatically from the column object.
> Also I think that in spark-sql in scala, if I print "cc" it would just print
> "A" instead, so this seem like a bug or a missing feature to me
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