Description
SolrConfig.java still tries to parse <boolTofilterOptimizer>
But the only user of this param was SolrIndexSearcher.java line 366-381 which is commented out since 3.1.
From Solr3.6 we print a warning if we find this option is found in solrconfig.xml (SOLR-1052):
WARN: solrconfig.xml: <boolTofilterOptimizer> is currently not implemented and has no effect.
However, the dead, commented code is still in place in SolrConfig.java, SolrIndexSearcher.Java. We should decide what do do, either re-implement boolTofilterOptimizer or remove it completely.