No, the parsing is made by dovecot core, that is nothing the backend can do about it. The backend shall *never*  reveive this. (would it be buggy or no)

PLease, have a look deeper

And the loop is a very big problem as it times out all the time (and once again, this is not in any of the backend  functions)

On 2019-04-21 10:42, Timo Sirainen via dovecot wrote:

Inbox appears in the list of arguments, because fts_backend_xapian_lookup() is parsing the search args wrong. Not sure about the other issue.

On 21 Apr 2019, at 19.31, Joan Moreau <jom@grosjo.net> wrote:

For this first point, the problem is that dovecot core sends TWICE the request and "Inbox" appears in the list of arguments ! (inbox shall serve to select teh right mailbox, never sent to the backend)

And even if this would be solved, the dovecot core loops *after* the backend hs returneds the results

# doveadm search -u jom@grosjo.net mailbox inbox text milan
doveadm(jom@grosjo.net): Info: Get last UID of INBOX = 315526
doveadm(jom@grosjo.net): Info: Get last UID of INBOX = 315526
doveadm(jom@grosjo.net): Info: Query: FLAG=AND
doveadm(jom@grosjo.net): Info: Query(1): add term(wilcard) : inbox
doveadm(jom@grosjo.net): Info: Query(2): add term(wilcard) : milan
doveadm(jom@grosjo.net): Info: Testing if wildcard
doveadm(jom@grosjo.net): Info: Query: set GLOBAL (no specified header)
doveadm(jom@grosjo.net): Info: Query : ( bcc:inbox OR body:inbox OR cc:inbox OR from:inbox OR message-id:inbox OR subject:inbox OR to:inbox ) AND ( bcc:milan OR body:milan OR cc:milan OR from:milan OR message-id:milan OR subject:milan OR to:milan )
doveadm(jom@grosjo.net): Info: Query: 2 results in 1 ms // THIS IS WHEN BACKEND HAS FOUND RESULTS AND STOPPED
d82b4b0f550d38593644000095331209 847
d82b4b0f550d38593644000095331209 1569
d82b4b0f550d38593644000095331209 2260
d82b4b0f550d38593644000095331209 2575
d82b4b0f550d38593644000095331209 2811
d82b4b0f550d38593644000095331209 2885
d82b4b0f550d38593644000095331209 3038
d82b4b0f550d38593644000095331209 3121 -> LOOPING FOREVER

 

On 2019-04-21 09:57, Timo Sirainen via dovecot wrote:

On 3 Apr 2019, at 20.30, Joan Moreau via dovecot <dovecot@dovecot.org> wrote:

doveadm search -u jom@grosjo.net mailbox inbox text milan
output

doveadm(jom@grosjo.net): Info: Query : ( bcc:inbox OR body:inbox OR cc:inbox OR from:inbox OR message-id:inbox OR subject:inbox OR to:inbox OR uid:inbox ) AND ( bcc:milan OR body:milan OR cc:milan OR from:milan OR message-id:milan OR subject:milan OR to:milan OR uid:milan )

1 - The query is wrong

That's because fts_backend_xapian_lookup() isn't anywhere close to being correct. Try to copy the logic based on solr_add_definite_query_args().