search problem dovecot 2.2.21 + fts - Solr

[Teemu Huovila]

On 24.02.2016 21:14, Anderson Barbosa wrote:
> Hello,
> 
> Realized update dovecot on my server. Now the search is returning
> differently from the previous version bringing reference information of
> other messages .
> For example when doing a search for anderson.joao this new version of the
> dovecot dovecot 2.2.21 + fts - Solr response will be all email that has the
> word anderson and joao, instead of returning only items with the word
> anderson.joao.
> 
> Before used version 2.2.18 + dovecot fts - Solr and the problem did not
> occur .
> For example practical test :
> 
> Dovecot 2.2.18
> 
> 
> # telnet SERVER 143
> Trying SERVER...
> Connected to SERVER.
> Escape character is '^]'.
> * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE
> AUTH=PLAIN] Zimbra IMAP4.
> a login conta at conta.com.br 1223456
> a OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE
> SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS THREAD=ORDEREDSUBJECT
> MULTIAPPEND URL-PARTIAn
> a select  INBOX
> * FLAGS (\Answered \Flagged \Deleted \Seen \Draft)
> * OK [PERMANENTFLAGS (\Answered \Flagged \Deleted \Seen \Draft \*)] Flags
> permitted.
> * 14 EXISTS
> * 0 RECENT
> * OK [UIDVALIDITY 1452548222] UIDs valid
> * OK [UIDNEXT 25] Predicted next UID
> * OK [HIGHESTMODSEQ 52] Highest
> a OK [READ-WRITE] Select completed (0.001 secs).
> a SEARCH text "anderson"
> * SEARCH 11 12 (2 found emails)
> a OK Search completed (0.265 secs).
> a SEARCH text "joao"
> * SEARCH 13 14 (2 found emails)
> a OK Search completed (0.003 secs).
> a SEARCH text "anderson.joao"
> * SEARCH (0 found emails)
> a OK Search completed (0.004 secs).
> a logout
> * BYE Logging out
> a OK Logout completed.
> Connection closed by foreign host.
> 
> 
> Dovecot 2.2.21
> 
> # telnet SERVER 143
> Trying SERVER...
> Connected to SERVER.
> Escape character is '^]'.
> * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE
> AUTH=PLAIN] Zimbra IMAP4.
> a login conta at conta.com.br 1223456
> a OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE
> SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS THREAD=ORDEREDSUBJECT
> MULTIAPPEND URL-PARTIAn
> a select INBOX
> * FLAGS (\Answered \Flagged \Deleted \Seen \Draft)
> * OK [PERMANENTFLAGS (\Answered \Flagged \Deleted \Seen \Draft \*)] Flags
> permitted.
> * 14 EXISTS
> * 0 RECENT
> * OK [UIDVALIDITY 1452548222] UIDs valid
> * OK [UIDNEXT 25] Predicted next UID
> * OK [HIGHESTMODSEQ 52] Highest
> a OK [READ-WRITE] Select completed (0.000 + 0.000 secs).
> a SEARCH text "anderson"
> * SEARCH 11 12 (2 found emails)
> a OK Search completed (0.004 + 0.000 secs).
> a SEARCH text "joao" (2 found emails)
> * SEARCH 13 14
> a OK Search completed (0.005 + 0.000 secs).
> a SEARCH text "anderson.joao"
> * SEARCH 11 12 13 14 *(4 found emails)*
> a OK Search completed (0.005 + 0.000 secs).
> a logout
> * BYE Logging out
> a OK Logout completed.
> Connection closed by foreign host.
> 
> Even using characters Special "" \ scape, ' ' for an answer will always be
> all emails with the word anderson and joao.
> Checking the Changelog dovecot noticed que NAS versions Previous v2.2.20
> and v2.2.19 certain changes with respect to fts .
> 
> There Have Another way to Make Search for Exact Word In this new version to
> loft?

This is most likely fixed by  https://github.com/dovecot/core/commit/f3b0efdcbd0bd9059574c8f86d6cb43e16c8e521 The fix will be included in 2.2.22, which will hopefully be released some time mid-march.
If you can, please test with a build from current git master tip and let us know, if it does not.

br,
Teemu Huovila