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In Spark, which type of join retains rows only from the left table that do not have matching rows in the right table? In Spark,
In Spark, which type of join retains rows only from the left table that do not have matching rows in the right table?
In Spark, which type of join retains rows only from the left table that do not have matching rows in the right table?
Left join
Left outer join
Left semi join
Left anti join
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