st_zmin

Devolve a coordenada Z mínima da geometria de entrada, ou None se a geometria de entrada estiver vazia ou não contiver coordenadas Z.

Para a função SQL do Databricks correspondente, veja st_zmin função.

Sintaxe

from pyspark.databricks.sql import functions as dbf

dbf.st_zmin(col=<col>)

Parâmetros

Examples

from pyspark.databricks.sql import functions as dbf
df = spark.createDataFrame([('LINESTRING Z (1 2 3,4 5 6,7 8 9)',)], ['wkt'])
df.select(dbf.st_zmin(dbf.st_geomfromtext('wkt')).alias('result')).collect()

[Row(result=3.0)]

from pyspark.databricks.sql import functions as dbf
df = spark.createDataFrame([('POLYGON Z ((2 0 1,1 2 0,-1 -1 2,0 -1 1, 2 0 1))',)], ['wkt'])
df.select(dbf.st_zmin(dbf.st_geomfromtext('wkt')).alias('result')).collect()

[Row(result=0.0)]