So Solr 4.0 and higher supports regular expressions in searching. However, Dovecot is quoting search queries in solr_add_definite_query (via solr_add_str_arg). This breaks regex searching. I do a sample search for emails with "merged" in their body via the query /merg.*/. If you look at the Solr logs, it is sending: q=body:"/merg.*/" which is converted to body:\"/merg.*/\" inside Solr.
but if it had sent only: q=body:/merg.*/ then regex would have worked. Is regular expression searching on the dashboard? I'm considering patching fts-backend-solr.c to not quote-enclose the search, but am looking for any better suggestions. Or perhaps not quote-enclose if the search is prefixed with RX: (ie: "RX:/merg.*/")... Thanks, G H
