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+ 17:41:17 -0000\r
+From: David Bremner <david@tethera.net>\r
+To: notmuch@notmuchmail.org\r
+Subject: Re: notmuch_query_add_tag_excluded and notmuch_query_search_threads\r
+In-Reply-To: <1417962498-astroid-0-zqj7j2s0ov-9575@strange>\r
+References: <1417905319-astroid-0-i86er7iwg5-10728@strange>\r
+ <87388rfzhw.fsf@maritornes.cs.unb.ca>\r
+ <1417958519-astroid-0-ydniq6pte2-8575@strange>\r
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+ <1417962498-astroid-0-zqj7j2s0ov-9575@strange>\r
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+Date: Sun, 07 Dec 2014 18:41:17 +0100\r
+Message-ID: <87r3wbe4si.fsf@maritornes.cs.unb.ca>\r
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+\r
+Gaute Hope <eg@gaute.vetsj.com> writes:\r
+>>=20\r
+>\r
+> Ok, that explains it. You are right - I mixed up, the count is correct.\r
+>\r
+> regards, gaute\r
+\r
+At the end of this message is a simpler example, that I think\r
+demonstrates a bug. At the very list it's not very nice that the\r
+destructiveness only shows up when excludes are involved.\r
+\r
+Here is the output; note the second exclude query!\r
+\r
+,----\r
+| =E2=95=AD=E2=94=80 maritornes:~/tmp=20\r
+| =E2=95=B0=E2=94=80% NOTMUCH_DEBUG_QUERY=3D1 ./a.out\r
+| Query string is:\r
+| tag:muted\r
+| Exclude query is:\r
+| Xapian::Query()\r
+| Final query is:\r
+| Xapian::Query((Tmail AND 0 * Kmuted))\r
+| ret1=3D84\r
+| Exclude query is:\r
+| Xapian::Query(<alldocuments>)\r
+| Final query is:\r
+| Xapian::Query(((Tmail AND 0 * Kmuted) AND_NOT <alldocuments>))\r
+| ret2=3D0\r
+`----\r
+\r
+\r
+\r
+#include <notmuch.h>\r
+#include <stdlib.h>\r
+#include <stdio.h>\r
+\r
+int main(int argc, char **argv){\r
+\r
+ notmuch_database_t *nm_db;\r
+ notmuch_query_t *query;\r
+\r
+ if (notmuch_database_open ("/home/bremner/Maildir/",\r
+ NOTMUCH_DATABASE_MODE_READ_ONLY, &nm_db))\r
+ return 1;\r
+\r
+ query =3D notmuch_query_create (nm_db, "tag:muted");\r
+ notmuch_query_add_tag_exclude (query, "muted");\r
+ notmuch_query_set_omit_excluded (query, NOTMUCH_EXCLUDE_TRUE);\r
+\r
+ printf("ret1=3D%d\n", notmuch_query_count_threads (query));\r
+ printf("ret2=3D%d\n", notmuch_query_count_threads (query));\r
+\r
+}\r