Mapping two inputs to a single output
Configure your map to combine two parallel loops into nested loops.
Procedure
Results
<?xml version="1.0" encoding="UTF-8"?>
<root>
<customer>
<id>111</id>
<name>John</name>
<city>New York</city>
<bill>
<id>asd-589</id>
<price>123.58</price>
</bill>
</customer>
<customer>
<id>591</id>
<name>Billy</name>
<city>Los Angeles</city>
<bill>
<id>sry-84u</id>
<price>352.89</price>
</bill>
<bill>
<id>xoi-htr</id>
<price>36.55</price>
</bill>
</customer>
<customer>
<id>891</id>
<name>Bob</name>
<city>Chicago</city>
<bill>
<id>111-gfs</id>
<price>3.58</price>
</bill>
<bill>
<id>8j9-t44</id>
<price>99.95</price>
</bill>
<bill>
<id>999-gre</id>
<price>799.95</price>
</bill>
</customer>
</root>