Using host libthread_db library "/lib/tls/libthread_db.so.1".
Core was generated by `postgres: msanchez exp 198.212.166.29 SELECT  '.
Program terminated with signal 11, Segmentation fault.
#0  0x0815d950 in cost_mergejoin (path=0x836f20c, root=0x8370708)
    at costsize.c:915
915			if (rescannedtuples < 0)
#0  0x0815d950 in cost_mergejoin (path=0x836f20c, root=0x8370708)
    at costsize.c:915
#1  0x0815d98c in cost_mergejoin (path=0x836f20c, root=0x8370300)
    at costsize.c:932
#2  0x0815d98c in cost_mergejoin (path=0x836f20c, root=0x836f2ec)
    at costsize.c:932
#3  0x0815d8c1 in cost_mergejoin (path=0x836f20c, root=0x775360)
    at costsize.c:878
#4  0x0815c428 in clauselist_selectivity (root=0x827d6e4, clauses=0xfeff7798, 
    varRelid=-16812072, jointype=135970173) at clausesel.c:203
#5  0x081637f5 in get_cheapest_path_for_pathkeys (paths=0x827d6e4, 
    pathkeys=0x882eeb0, cost_criterion=7) at pathkeys.c:586
#6  0x081abd7d in ProcessUtility (parsetree=0x835ea10, dest=0x882ee54, 
    completionTag=0xa <Address 0xa out of bounds>) at utility.c:611
#7  0x081ac1ff in ProcessUtility (parsetree=0xfeff7850, dest=0x88af7e0, 
    completionTag=0x88af408 "\v") at utility.c:793
#8  0x081082c4 in CreateTrigger (stmt=0x88af588, forConstraint=-100 '\234')
    at trigger.c:155
#9  0x08109e30 in CopyTriggerDesc (trigdesc=0x88af588) at trigger.c:922
#10 0x0810aa4b in ExecBSDeleteTriggers (estate=0x88af828, relinfo=0x88af408)
    at trigger.c:1324
#11 0x0810ae71 in ExecASUpdateTriggers (estate=0x88af380, relinfo=0x8112de0)
    at trigger.c:1462
#12 0x08112ec9 in AlterUserSet (stmt=0x88af380) at user.c:1002
#13 0x08106d66 in createForeignKeyTriggers (rel=0x88af380, fkconstraint=0x1, 
    constrOid=141463696) at tablecmds.c:3697
#14 0x08113718 in CreateGroup (stmt=0x88af2f8) at user.c:1273
#15 0x08106e11 in createForeignKeyTriggers (rel=0x88af2f8, fkconstraint=0x413, 
    constrOid=4278155864) at tablecmds.c:3714
#16 0x081055fd in AlterTableAddCheckConstraint (rel=0x88af1a8, 
    constr=0x88af2f8) at tablecmds.c:2951
#17 0x081049d8 in AlterTableAlterOids (myrelid=139861992, recurse=-88 '¨', 
    setOid=-40 'Ø') at tablecmds.c:2513
#18 0x0817c33b in BackendFork (port=0x8360fd8) at postmaster.c:2485
#19 0x0817c113 in BackendFork (port=0x8360fd8) at postmaster.c:2403
#20 0x081788d3 in PGSemaphoreLock (sema=0x835cbc0, interruptOK=0 '\0')
    at pg_sema.c:424
#21 0x0817b1c1 in pmdie (postgres_signal_arg=4) at postmaster.c:1701
#22 0x08154c40 in _readConst () at readfuncs.c:377
#23 0x08154633 in _readResdom () at readfuncs.c:311
#24 0x08152b98 in _outAExpr (str=0x2, node=0x1) at outfuncs.c:1366
#25 0x0815225e in _outIndexElem (str=0x5, node=0x830d6b8) at outfuncs.c:1208
#26 0x08121f63 in ExecEndNode (node=0x5) at execProcnode.c:499
#27 0x0065479a in ?? ()
#28 0x00000005 in ?? ()
#29 0xfeff8c64 in ?? ()
#30 0xfeff8c7c in ?? ()
#31 0x00000000 in ?? ()
#32 0x00774a78 in ?? ()
#33 0x0013a020 in ?? ()
#34 0x081fbd18 in interval_part (fcinfo=0x8121d30) at timestamp.c:3374
#35 0x0806fd51 in nocachegetattr (tuple=) at heaptuple.c:409