Can I insert query result into another collection of the same Solr?

[WU, Zhiqing]

Hello,
I did a query based on one collection and want to insert its result into
another collection of the same Solr. The query result has the same fields
as that of another collection. Is there a simple way to do the job?
If the query result has to be moved outside Solr before being added to
another collection of the same Solr, it would not be very efficient when
the query result is very large.
Relevant information would be welcome.
Kind regards,
Zhiqing