Like SOLR-8521, it would be great to document how SQuirrel SQL can be used with SolrJ JDBC.
SolrJ JDBC - Ensure that SQuirrel SQL works with SolrJ JDBC
Add documentation for how to use Solr JDBC driver with SQL client like DB Visualizer
Added page to CWIKI: https://cwiki.apache.org/confluence/display/solr/Solr+JDBC+-+SQuirreL+SQL
Adding images I used for a post on this topic (here and here). Planning to create CWIKI page shortly.
Added initial step-by-step guide for SQuirrelSQL to match how SOLR-8521 was done. New screenshots for Solr 6.0.0 instead of SNAPSHOT need to be taken and this should be integrated into the reference guide.