Hi folks, I just re-wrote a query from using UNION ALL to use "with rollup"
and I'm seeing some unexpected behavior. I'll open a JIRA if needed but
wanted to check if this is user error. Here is my 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, value as key,GROUPING__ID from
foo group by value with rollup”).show(100)
sqlContext.sql(“select count(*) as cnt, key % 100 as key,GROUPING__ID
from foo group by key%100 with rollup”).show(100)
Grouping by value does the right thing, I get one group 0 with the overall
count. But grouping by expression (key%100) produces weird results --
appears that group 1 results are replicated as group 0. Am I doing
something wrong or is this a bug?
