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Returns the child of maximum value of the input H3 cell at the specified resolution. Supports Spark Connect.
For the corresponding Databricks SQL function, see h3_maxchild function.
Syntax
from pyspark.databricks.sql import functions as dbf
dbf.h3_maxchild(col1=<col1>, col2=<col2>)
Parameters
| Parameter | Type | Description |
|---|---|---|
col1 |
pyspark.sql.Column or str |
An H3 cell ID, represented as a int or a str |
col2 |
pyspark.sql.Column, str, or int |
The resolution of the maximum value child cell ID to return. Must be non-negative and larger or equal to the resolution of the first argument. |
Examples
from pyspark.databricks.sql import functions as dbf
df = spark.createDataFrame([(599686042433355775, 10,)], ['h3l', 'res'])
df.select(dbf.h3_maxchild('h3l', 'res').alias('result')).collect()
[Row(result=622204040416821247)]
df.select(dbf.h3_maxchild('h3l', 10).alias('result')).collect()
[Row(result=622204040416821247)]