dovecot-fts-flatcurve support (backport for 2.3.17+ as it will be live in 2.4+ anyways)
What is fts-flatcurve
Excerpts from the official GitHub repository This is a Dovecot FTS plugin to enable message indexing using the Xapian Open Source Search Engine Library. fts-flatcurve will become the default Dovecot Community Edition (CE) FTS driver in v2.4 (merged into Dovecot core in April 2022)
Why should it be implemented?
It will be part of dovecot in the near future anyways (with 2.4 at least). But that plugin is backwards compatible with Dovecot 2.3.17+ and as no one knows when 2.4 will be released it would be great to have it with 2.3.20+ already.
But we already have fts-xapian as a installable package
That's true. But there are a few reasons why anyways: Read: https://github.com/slusarz/dovecot-fts-flatcurve/issues/4#issuecomment-902425597
For more informations please read the official GitHub repository of dovecot-fts-flatcurve: https://github.com/slusarz/dovecot-fts-flatcurve