Storing "map" in Field

[Jeff Crowder]

All,

I'm working with the sample schema, and have a scenario where I would like
to store multiple prices in a "map" of some sort.  This would be used for a
scenario where a single "product" has different "prices" based on a price
list.  For instance:

<add>
  <doc>
    <field name="id">SKU001</field>
    <field name="name">A Sample Product</field>
    <field name="price[pricelist1]">119.99</field>
    <field name="price[pricelist2]">109.99</field>
  </doc>
</add>

Is something like this possible?

Regards,
-Jeff