dropDuplicates Operator — Streaming Deduplication ... For a streaming Dataset, dropDuplicates will keep all data across triggers as intermediate state to drop duplicates ... groupBy("id").agg(first($"time") as "first_time") scala> counts.explain​ ...
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pyspark-drop-duplicates-keep-first
To everyone saying that dropDuplicates keeps the first occurrence - this is not strictly correct. dropDuplicates keeps the 'first occurrence' of a .... Spark Dataframe - Distinct or Drop Duplicates - SQL & Hadoop The entry point for working To find duplicate rows from the fruits table, you first list the fruit name .... .config("spark.some.config.option", "some-value") \ .getOrCreate(). Creating DataFrames. PySpark & Spark SQL. >>> spark.stop(). Stopping SparkSession. >​ ... 939c2ea5af