xpath_string

Returnerar textinnehållet i den första XML-noden som matchar XPath-uttrycket.

Syntax

from pyspark.sql import functions as sf

sf.xpath_string(xml, path)

Parameterar

Examples

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

+--------------------+
|xpath_string(x, a/c)|
+--------------------+
|                  cc|
+--------------------+