Pyspark Periksa semua kolom untuk nilai nol
from pyspark.sql.functions import isnan, when, count, col
df.select([count(when(isnan(c), c)).alias(c) for c in df.columns]).show()
+-------+----------+---+
|session|timestamp1|id2|
+-------+----------+---+
| 0| 0| 3|
+-------+----------+---+
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