[jira] [Created] (SPARK-16939) Fix build error by using `Tuple1` explicitly in StringFunctionSuite

["Dongjoon Hyun (JIRA)" <ji...@apache.org>]

Dongjoon Hyun created SPARK-16939:
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             Summary: Fix build error by using `Tuple1` explicitly in StringFunctionSuite
                 Key: SPARK-16939
                 URL: https://issues.apache.org/jira/browse/SPARK-16939
             Project: Spark
          Issue Type: Bug
          Components: SQL
            Reporter: Dongjoon Hyun
            Priority: Minor


This issue aims to fix a build error on branch 1.6, but we had better have this in master branch, too. There are other ongoing PR, too.

{code}
[error] /home/jenkins/workspace/spark-branch-1.6-compile-maven-with-yarn-2.3/sql/core/src/test/scala/org/apache/spark/sql/StringFunctionsSuite.scala:82: value toDF is not a member of Seq[String]
[error]     val df = Seq("aaaac").toDF("s")
[error]                           ^
{code}



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