Yana Kadiyska created SPARK-8956:
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Summary: Rollup produces incorrect result when group by contains
expressions
Key: SPARK-8956
URL: https://issues.apache.org/jira/browse/SPARK-8956
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 1.4.0
Reporter: Yana Kadiyska
Rollup produces incorrect results when group clause contains an expression
{code}case class KeyValue(key: Int, value: String)
val df = sc.parallelize(1 to 50).map(i=>KeyValue(i, i.toString)).toDF
df.registerTempTable("foo")
sqlContext.sql(“select count(*) as cnt, key % 100 as key,GROUPING__ID from foo
group by key%100 with rollup”).show(100)
{code}
As a workaround, this works correctly:
{code}
val df1=df.withColumn("newkey",df("key")%100)
df1.registerTempTable("foo1")
sqlContext.sql("select count(*) as cnt, newkey as key,GROUPING__ID as grp from
foo1 group by newkey with rollup").show(100)
{code}
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