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Posted to issues@spark.apache.org by "Yin Huai (JIRA)" <ji...@apache.org> on 2016/04/14 23:32:25 UTC
[jira] [Updated] (SPARK-14642) import
org.apache.spark.sql.expressions._ breaks udf under functions
[ https://issues.apache.org/jira/browse/SPARK-14642?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Yin Huai updated SPARK-14642:
-----------------------------
Description:
The following code works
{code}
scala> import org.apache.spark.sql.functions._
import org.apache.spark.sql.functions._
scala> udf((v: String) => v.stripSuffix("-abc"))
res0: org.apache.spark.sql.expressions.UserDefinedFunction = UserDefinedFunction(<function1>,StringType,Some(List(StringType)))
{code}
But, the following does not
{code}
scala> import org.apache.spark.sql.functions._
import org.apache.spark.sql.functions._
scala> import org.apache.spark.sql.expressions._
import org.apache.spark.sql.expressions._
scala> udf((v: String) => v.stripSuffix("-abc"))
<console>:30: error: No TypeTag available for String
udf((v: String) => v.stripSuffix("-abc"))
{code}
was:
The following code works
{code}
scala> import org.apache.spark.sql.functions._
import org.apache.spark.sql.functions._
scala> udf((v: String) => v.stripSuffix("-abc"))
res0: org.apache.spark.sql.expressions.UserDefinedFunction = UserDefinedFunction(<function1>,StringType,Some(List(StringType)))
{code}
But, the following does not
{code}
scala> import org.apache.spark.sql.functions._
import org.apache.spark.sql.functions._
scala> import org.apache.spark.sql.expressions._
import org.apache.spark.sql.expressions._
scala> udf((v: String) => v.stripSuffix("-abc"))
<console>:30: error: No TypeTag available for String
udf((v: String) => v.stripSuffix("-SNAPSHOT"))
{code}
> import org.apache.spark.sql.expressions._ breaks udf under functions
> --------------------------------------------------------------------
>
> Key: SPARK-14642
> URL: https://issues.apache.org/jira/browse/SPARK-14642
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Reporter: Yin Huai
> Priority: Critical
>
> The following code works
> {code}
> scala> import org.apache.spark.sql.functions._
> import org.apache.spark.sql.functions._
> scala> udf((v: String) => v.stripSuffix("-abc"))
> res0: org.apache.spark.sql.expressions.UserDefinedFunction = UserDefinedFunction(<function1>,StringType,Some(List(StringType)))
> {code}
> But, the following does not
> {code}
> scala> import org.apache.spark.sql.functions._
> import org.apache.spark.sql.functions._
> scala> import org.apache.spark.sql.expressions._
> import org.apache.spark.sql.expressions._
> scala> udf((v: String) => v.stripSuffix("-abc"))
> <console>:30: error: No TypeTag available for String
> udf((v: String) => v.stripSuffix("-abc"))
> {code}
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