Hi All
 
I found some spark version(spark 1.4) return upper case aggregated column,  and some return low case.
As below code,
df.groupby(col("...")).agg(count("number")) 
may return
 
COUNT(number)  ------ spark 1,4
count(number) ----- spark 1.6
 
Anyone know if there is configure parameter for this, or which PR change this?
 
Thank you very much.
Yu Wenpei.

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