pyspark.sql.functions.date_sub¶
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pyspark.sql.functions.date_sub(start: ColumnOrName, days: Union[ColumnOrName, int]) → pyspark.sql.column.Column¶ Returns the date that is days days before start
Examples
>>> df = spark.createDataFrame([('2015-04-08', 2,)], ['dt', 'sub']) >>> df.select(date_sub(df.dt, 1).alias('prev_date')).collect() [Row(prev_date=datetime.date(2015, 4, 7))] >>> df.select(date_sub(df.dt, df.sub.cast('integer')).alias('prev_date')).collect() [Row(prev_date=datetime.date(2015, 4, 6))]