pyspark.sql.functions.least¶

pyspark.sql.functions.least(*cols: ColumnOrName) → pyspark.sql.column.Column¶

Returns the least value of the list of column names, skipping null values. This function takes at least 2 parameters. It will return null iff all parameters are null.

Parameters

colsColumn or str: column names or columns to be compared

Examples

>>> df = spark.createDataFrame([(1, 4, 3)], ['a', 'b', 'c'])
>>> df.select(least(df.a, df.b, df.c).alias("least")).collect()
[Row(least=1)]

pyspark.sql.functions.greatest

pyspark.sql.functions.sqrt