update feature

spark/featureEng.py

@@ -346,7 +346,7 @@ def featuresToRedis(samples,columns,prefix,redisKey):
     prefixSamples = samples.groupBy(idCol).agg(F.max("timestamp").alias(timestampCol))
     resDatas = samples.join(prefixSamples, on=[idCol], how='left').where(F.col("timestamp") == F.col(timestampCol))
     resDatas = resDatas.select(*columns).distinct()
-    print(prefix, len(resDatas))
+    print(prefix, resDatas.count())
     resDatas.repartition(8).foreachPartition(toRedis)
 
 """