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From animeshbaranawal <...@git.apache.org>
Subject [GitHub] spark pull request: [SPARK-8621] [SQL] support empty string as col...
Date Wed, 01 Jul 2015 07:26:38 GMT
Github user animeshbaranawal commented on a diff in the pull request:

    https://github.com/apache/spark/pull/7149#discussion_r33654307
  
    --- Diff: sql/core/src/test/scala/org/apache/spark/sql/DataFrameSuite.scala ---
    @@ -730,4 +730,11 @@ class DataFrameSuite extends QueryTest {
         val res11 = ctx.range(-1).select("id")
         assert(res11.count == 0)
       }
    +
    +  test("SPARK-8621: support empty string column name") {
    +    val df = Seq(Tuple1(1)).toDF("").as("t")
    +    // We should allow empty string as column name
    +    df.col("")
    +    df.col("t.``")
    --- End diff --
    
    This line is also giving some error , mainly "AnalysisException: cannot resolve 't.``'
given input columns ;"


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