Hi all,
I have been trying out the new dataframe api in 1.3, which looks great by
the way.
I have found an example to define udfs and add them to select operations,
like this:
slen = F.udf(lambda s: len(s), IntegerType())
df.select(df.age, slen(df.name).alias('slen')).collect()
is it possible to to something similar with aggregates? Something like this:
gdf = df.groupBy(df.name)
gdf.agg(slen(df.age)).collect()
thanks,
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