How does predicate push down really help? in the following cases val df1 = spark.sql("select * from users where age > 30")
vs val df1 = spark.sql("select * from users") df.filter("age > 30")
How does predicate push down really help? in the following cases val df1 = spark.sql("select * from users where age > 30")
vs val df1 = spark.sql("select * from users") df.filter("age > 30")