xpath_boolean

Returnerar sant om XPath-uttrycket utvärderas till sant eller om en matchande nod hittas.

Syntax

from pyspark.sql import functions as sf

sf.xpath_boolean(xml, path)

Parameterar

Parameter	Typ	Description
xml	pyspark.sql.Column eller str	XML-kolumn eller kolumnnamn.
path	pyspark.sql.Column eller str	XPath-uttryck.

Examples

from pyspark.sql import functions as sf
df = spark.createDataFrame([('<a><b>1</b></a>',)], ['x'])
df.select(sf.xpath_boolean(df.x, sf.lit('a/b'))).show()

+---------------------+
|xpath_boolean(x, a/b)|
+---------------------+
|                 true|
+---------------------+