this includes a change of default indexing from substring-matches to
prefix-matches. most users probably don't need to do anything
(prefix matching is what most people seem to expect anyway, also it
uses considerably less storage/cpu), but if you particularly want
substring-matching you can change config to use it, or if your existing
indexes are using up more space than you'd like, you may want to remove
and reindex (doveadm fts-flatcurve remove $folder, doveadm index -q
$folder)
This is a Dovecot FTS plugin to enable message indexing using the
Xapian search engine library. It is intended to act as a simple
interface to the Xapian storage/search query functionality.
Unlike the other Xapian-based FTS plugin "dovecot-fts-xapian",
flatcurve relies on Dovecot to do the necessary stemming, and supports
match scoring and substring matches - it is RFC 3501 (IMAP4rev1)
compliant. It does not support fuzzy searches.
sthen