Notiz
Zougrëff op dës Säit erfuerdert Autorisatioun. Dir kënnt probéieren, Iech unzemellen oder Verzeechnesser ze änneren.
Zougrëff op dës Säit erfuerdert Autorisatioun. Dir kënnt probéieren, Verzeechnesser ze änneren.
Returns some value of col for a group of rows.
Syntax
from pyspark.sql import functions as sf
sf.any_value(col, ignoreNulls=None)
Parameters
| Parameter | Type | Description |
|---|---|---|
col |
pyspark.sql.Column or column name |
Target column to work on. |
ignoreNulls |
pyspark.sql.Column or bool, optional |
If first value is null then look for first non-null value. |
Returns
pyspark.sql.Column: some value of col for a group of rows.
Examples
from pyspark.sql import functions as sf
df = spark.createDataFrame(
[(None, 1), ("a", 2), ("a", 3), ("b", 8), ("b", 2)], ["c1", "c2"])
df.select(sf.any_value('c1'), sf.any_value('c2')).show()
+-------------+-------------+
|any_value(c1)|any_value(c2)|
+-------------+-------------+
| NULL| 1|
+-------------+-------------+
df.select(sf.any_value('c1', True), sf.any_value('c2', True)).show()
+-------------+-------------+
|any_value(c1)|any_value(c2)|
+-------------+-------------+
| a| 1|
+-------------+-------------+