Now that is a proper bug! Makes Excel crash OK here. RBS
On 10/3/12, Klaus Keppler <k...@keppler-it.de> wrote: > Hi, > > after upgrading from SQLite 3.7.13 to 3.7.14 our application crashed > with a SEGFAULT located within SQLite. > I boiled down the SQL statement and the tables used, and was able to > reproduce this also with the SQLite standalone binary available at > http://www.sqlite.org/sqlite-shell-linux-x86-3071400.zip > (Debian 6, AMD64). > > I assume that the new optimizations on the query planner are causing > this problem; with 3.7.13 everything works fine. > > > HOW TO REPRODUCE: > -- create these tables and fill with data: > CREATE TABLE GROUPCUSTOMERS ( > GC_GROUPID INTEGER NOT NULL, > GC_CUSTOMERID INTEGER NOT NULL, > GC_OBJECTTYPE INTEGER > ); > INSERT INTO GROUPCUSTOMERS VALUES (1, 1, NULL); > > CREATE TABLE GROUPPERMISSIONS ( > GP_GROUPID INTEGER NOT NULL, > GP_MODULEID INTEGER NOT NULL, > GP_PERMISSIONID INTEGER NOT NULL > ); > INSERT INTO GROUPPERMISSIONS VALUES (1, 1, 1); > > CREATE TABLE GROUPUSERS ( > GU_GROUPID INTEGER NOT NULL, > GU_USERID INTEGER NOT NULL, > GU_OBJECTTYPE INTEGER > ); > > -- then run this query: > SELECT * FROM > ( SELECT GP_MODULEID AS CP_MODULEID, GP_PERMISSIONID AS CP_PERMISSIONID > FROM GROUPCUSTOMERS, GROUPPERMISSIONS > WHERE (GC_GROUPID = GP_GROUPID) > ) AS A1 > LEFT JOIN > ( SELECT GP_MODULEID AS UP_MODULEID, GP_PERMISSIONID AS UP_PERMISSIONID > FROM GROUPUSERS, GROUPPERMISSIONS > WHERE (GU_GROUPID = GP_GROUPID) > ) AS A2 > ON (CP_MODULEID = UP_MODULEID) > OR (UP_PERMISSIONID = 0) > ; > > => SEGFAULT > > -- note that it is important to have these two records inserted, > -- without them the SQL will work. > > -- AND: when running "ANALYZE" before running the SQL statement, the > -- query also succeeds! > > In our application, the error occured at the sqlite3VdbeExec function at > "case OP_NullRow:" on the line "u.bn.pC->nullRow = 1;" > u.pn.pC is NULL at this point. > (tested with GDB and the original (bloated) SQL statement from within > our application) > We did NOT use the flag SQLITE_ENABLE_STAT3. > > For any questions don't hezitate to contact me. > > Best regards > > -Klaus Keppler > > > > -- > ______________________________________________________________________ > Keppler IT GmbH - Die Hostingexperten. > > Dipl.-Inf. Klaus Keppler Tel. (09131) 691-480 > Geschäftsführer Fax: (09131) 691-489 > > Am Weichselgarten 7 UStID.-Nr. DE259788698 > 91058 Erlangen Amtsgericht Fürth, HRB 11477 > www.keppler-it.de Sitz d. Gesellschaft: Erlangen > ______________________________________________________________________ > _______________________________________________ > sqlite-users mailing list > sqlite-users@sqlite.org > http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users > _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
