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PySpark SQL Functions
Method arrayMethod colMethod collect_listMethod collect_setMethod concatMethod concat_wsMethod countMethod count_distinctMethod countDistinctMethod date_formatMethod dayofmonthMethod dayofweekMethod dayofyearMethod element_atMethod explodeMethod exprMethod firstMethod greatestMethod instrMethod lastMethod leastMethod lengthMethod litMethod lowerMethod maxMethod meanMethod minMethod monthMethod regexp_extractMethod regexp_replaceMethod repeatMethod roundMethod splitMethod to_dateMethod translateMethod trimMethod upperMethod whenMethod year
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PySpark SQL Functions | lower method
Machine Learning
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chevron_rightPySpark SQL Functions
schedule Jul 1, 2022
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PySpark SQL Functions' lower(~)
method returns a new PySpark Column
with the specified column lower-cased.
Parameters
1. col
| string
or Column
The column to perform the lowercase operation on.
Return Value
A PySpark Column (pyspark.sql.column.Column
).
Examples
Consider the following PySpark DataFrame:
+----+---+|name|age|+----+---+|ALEX| 25|| BoB| 30|+----+---+
Lowercasing strings in PySpark DataFrame
To lower-case the strings in the name
column:
Note that passing in a column label as a string also works:
Replacing column with lowercased column in PySpark
To replace the name
column with the lower-cased version, use the withColumn(~)
:
import pyspark.sql.functions as F
+----+---+|name|age|+----+---+|alex| 25|| bob| 30|+----+---+
Published by Isshin Inada
Edited by 0 others
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Official PySpark Documentation
https://spark.apache.org/docs/latest/api/python/reference/api/pyspark.sql.functions.lower.html
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