jq：通过选择性地从对象/嵌入数组中选择值来形成CSV

Input is:

输入是：

{"1.2.3.4":[{"Value":"myval1","Key":"mykey1"},   {"Value":"myval3","Key":"mykey3"},{"Value":"myval2","Key":"mykey2"},{"Value":"myval4","Key":"mykey4"}]}
{"4.5.6.7":[{"Value":"myval1","Key":"mykey1"},   {"Value":"myval3","Key":"mykey3"},{"Value":"myval2","Key":"mykey2"},{"Value":"myval4","Key":"mykey4"}]}
{"1.2.3.4":[{"Value":"myval1