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Posted to issues@spark.apache.org by "Barry Becker (JIRA)" <ji...@apache.org> on 2016/11/18 17:01:58 UTC
[jira] [Commented] (SPARK-13913) DataFrame.withColumn fails when
trying to replace existing column with dot in name
[ https://issues.apache.org/jira/browse/SPARK-13913?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15677144#comment-15677144 ]
Barry Becker commented on SPARK-13913:
--------------------------------------
I can still reproduce this using spark 1.6.3.
My dataframe has columns that include a column named "unique. string"
I get an exception when I attempt this snippet:
val c = col('`unique. string`')
datasetDf = datasetDf
.withColumn("unique. string" + "_CLEANED__", when(c.isNull, lit(Double.NaN)).otherwise(c))
The error I get is:
org.apache.spark.sql.AnalysisException: cannot resolve 'unique. string' given input columns: [string-normal_CLEANED__, verySmallRange, dateColumn_CLEANED__, unique. string_CLEANED__, posNoZero_CLEANED__, normal$with$Null, allOneValue, unique. string, string/odd, posNoZero, all.Small, string-normal, smallRange, all*Null, veryLargeRange, mostly.Zero, largeRange, all#Zero, allNegative, dateColumn, normal123, string/odd_CLEANED__];
Note that the column "unique. string" is in the list of columns, but its not getting found. The stack trace is
{code}
at org.apache.spark.sql.catalyst.analysis.package$AnalysisErrorAt.failAnalysis(package.scala:42)
at org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1$$anonfun$apply$2.applyOrElse(CheckAnalysis.scala:60)
at org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1$$anonfun$apply$2.applyOrElse(CheckAnalysis.scala:57)
at org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$transformUp$1.apply(TreeNode.scala:335)
at org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$transformUp$1.apply(TreeNode.scala:335)
at org.apache.spark.sql.catalyst.trees.CurrentOrigin$.withOrigin(TreeNode.scala:69)
at org.apache.spark.sql.catalyst.trees.TreeNode.transformUp(TreeNode.scala:334)
at org.apache.spark.sql.catalyst.plans.QueryPlan.transformExpressionUp$1(QueryPlan.scala:108)
at org.apache.spark.sql.catalyst.plans.QueryPlan.org$apache$spark$sql$catalyst$plans$QueryPlan$$recursiveTransform$2(QueryPlan.scala:118)
at org.apache.spark.sql.catalyst.plans.QueryPlan$$anonfun$org$apache$spark$sql$catalyst$plans$QueryPlan$$recursiveTransform$2$1.apply(QueryPlan.scala:122)
at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:245)
at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:245)
at scala.collection.immutable.List.foreach(List.scala:381)
at scala.collection.TraversableLike$class.map(TraversableLike.scala:245)
at scala.collection.immutable.List.map(List.scala:285)
at org.apache.spark.sql.catalyst.plans.QueryPlan.org$apache$spark$sql$catalyst$plans$QueryPlan$$recursiveTransform$2(QueryPlan.scala:122)
at org.apache.spark.sql.catalyst.plans.QueryPlan$$anonfun$2.apply(QueryPlan.scala:127)
at scala.collection.Iterator$$anon$11.next(Iterator.scala:370)
at scala.collection.Iterator$class.foreach(Iterator.scala:750)
at scala.collection.AbstractIterator.foreach(Iterator.scala:1202)
at scala.collection.generic.Growable$class.$plus$plus$eq(Growable.scala:59)
at scala.collection.mutable.ArrayBuffer.$plus$plus$eq(ArrayBuffer.scala:104)
at scala.collection.mutable.ArrayBuffer.$plus$plus$eq(ArrayBuffer.scala:48)
at scala.collection.TraversableOnce$class.to(TraversableOnce.scala:295)
at scala.collection.AbstractIterator.to(Iterator.scala:1202)
at scala.collection.TraversableOnce$class.toBuffer(TraversableOnce.scala:287)
at scala.collection.AbstractIterator.toBuffer(Iterator.scala:1202)
at scala.collection.TraversableOnce$class.toArray(TraversableOnce.scala:274)
at scala.collection.AbstractIterator.toArray(Iterator.scala:1202)
at org.apache.spark.sql.catalyst.plans.QueryPlan.transformExpressionsUp(QueryPlan.scala:127)
at org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1.apply(CheckAnalysis.scala:57)
at org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1.apply(CheckAnalysis.scala:50)
at org.apache.spark.sql.catalyst.trees.TreeNode.foreachUp(TreeNode.scala:121)
at org.apache.spark.sql.catalyst.analysis.CheckAnalysis$class.checkAnalysis(CheckAnalysis.scala:50)
at org.apache.spark.sql.catalyst.analysis.Analyzer.checkAnalysis(Analyzer.scala:44)
at org.apache.spark.sql.execution.QueryExecution.assertAnalyzed(QueryExecution.scala:34)
at org.apache.spark.sql.DataFrame.<init>(DataFrame.scala:133)
at org.apache.spark.sql.DataFrame.org$apache$spark$sql$DataFrame$$withPlan(DataFrame.scala:2127)
at org.apache.spark.sql.DataFrame.select(DataFrame.scala:707)
at org.apache.spark.sql.DataFrame.withColumn(DataFrame.scala:1186)
at com.mineset.spark.ml.MLDatasetCleaner$$anonfun$cleanDataset$4.apply(MLDatasetCleaner.scala:110)
at com.mineset.spark.ml.MLDatasetCleaner$$anonfun$cleanDataset$4.apply(MLDatasetCleaner.scala:99)
at scala.collection.immutable.List.foreach(List.scala:381)
at com.mxxx.spark.ml.MLDatasetCleaner.cleanDataset(MLDatasetCleaner.scala:99)
{code}
> DataFrame.withColumn fails when trying to replace existing column with dot in name
> ----------------------------------------------------------------------------------
>
> Key: SPARK-13913
> URL: https://issues.apache.org/jira/browse/SPARK-13913
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 1.6.0
> Reporter: Emmanuel Leroy
>
> http://stackoverflow.com/questions/36000147/spark-1-6-apply-function-to-column-with-dot-in-name-how-to-properly-escape-coln/36005334#36005334
> if I do (column name exists already and has dot in it, but is not a nested column):
> scala> df = df.withColumn("raw.hourOfDay", df.col("`raw.hourOfDay`"))
> scala> df = df.withColumn("raw.hourOfDay", df.col("`raw.hourOfDay`"))
> org.apache.spark.sql.AnalysisException: cannot resolve 'raw.minOfDay' given input columns raw.hourOfDay_2, raw.dayOfWeek, raw.sensor2, raw.hourOfDay, raw.minOfDay;
> at org.apache.spark.sql.catalyst.analysis.package$AnalysisErrorAt.failAnalysis(package.scala:42)
> at org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1$$anonfun$apply$2.applyOrElse(CheckAnalysis.scala:60)
> at org.apache.spark.sql.catalyst.analysis.CheckAnalysis$$anonfun$checkAnalysis$1$$anonfun$apply$2.applyOrElse(CheckAnalysis.scala:57)
> at org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$transformUp$1.apply(TreeNode.scala:319)
> at org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$transformUp$1.apply(TreeNode.scala:319)
> at org.apache.spark.sql.catalyst.trees.CurrentOrigin$.withOrigin(TreeNode.scala:53)
> at org.apache.spark.sql.catalyst.trees.TreeNode.transformUp(TreeNode.scala:318)
> at org.apache.spark.sql.catalyst.plans.QueryPlan.transformExpressionUp$1(QueryPlan.scala:107)
> at org.apache.spark.sql.catalyst.plans.QueryPlan.org$apache$spark$sql$catalyst$plans$QueryPlan$$recursiveTransform$2(QueryPlan.scala:117)
> at org.apache.spark.sql.catalyst.plans.QueryPlan$$anonfun$org$apache$spark$sql$catalyst$plans$QueryPlan$$recursiveTransform$2$1.apply(QueryPlan.scala:121)
> at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)
> at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)
> at scala.collection.immutable.List.foreach(List.scala:318)
> at scala.collection.TraversableLike$class.map(TraversableLike.scala:244)
> at scala.collection.AbstractTraversable.map(Traversable.scala:105)
> at org.apache.spark.sql.catalyst.plans.QueryPlan.org$apache$spark$sql$catalyst$plans$QueryPlan$$recursiveTransform$2(QueryPlan.scala:121)
> at org.apache.spark.sql.catalyst.plans.QueryPlan$$anonfun$2.apply(QueryPlan.scala:125)
> at scala.collection.Iterator$$anon$11.next(Iterator.scala:328)
> at scala.collection.Iterator$class.foreach(Iterator.scala:727)
> at scala.collection.AbstractIterator.foreach(Iterator.scala:1157)
> at scala.collection.generic.Growable$class.$plus$plus$eq(Growable.scala:48)
> at scala.collection.mutable.ArrayBuffer.$plus$plus$eq(ArrayBuffer.scala:103)
> but if I do:
> scala> df = df.withColumn("raw.hourOfDay_2", df.col("`raw.hourOfDay`"))
> scala> df.printSchema
> root
> |-- raw.hourOfDay: long (nullable = true)
> |-- raw.minOfDay: long (nullable = true)
> |-- raw.dayOfWeek: long (nullable = true)
> |-- raw.sensor2: long (nullable = true)
> |-- raw.hourOfDay_2: long (nullable = true)
> it works fine (i.e. new column is created with dot in ColName).
> The only difference is that the name "raw.hourOfDay_2" does not exist yet, and is properly created as a colName with dot, not as a nested column.
> The documentation however says that if the column exists it will replace it, but it seems there is a miss-interpretation of the column name as a nested column
> def withColumn(colName: String, col: Column): DataFrame
> Returns a new DataFrame by adding a column or replacing the existing column that has the same name.
> Replacing a column without a dot in it works fine.
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