#0  0x0058541b in gidx_is_unknown (a=0x0) at gserialized_gist_nd.c:115
#1  0x005857ac in gidx_union_volume (a=0x0, b=0xa427f88) at gserialized_gist_nd.c:215
#2  0x00586fa2 in gserialized_gist_penalty (fcinfo=0xbfbcd834) at gserialized_gist_nd.c:781
#3  0x083c90e3 in FunctionCall3Coll (flinfo=0xbfbcec90, collation=100, arg1=3216825744, 
    arg2=3216825104, arg3=3216824988) at fmgr.c:1344
#4  0x080991c6 in gistpenalty (giststate=0xbfbcde90, attno=0, orig=0xbfbcdd90, 
    isNullOrig=1 '\001', add=0xbfbcdb10, isNullAdd=0 '\000') at gistutil.c:532
#5  0x08098cbf in gistchoose (r=0xb5862698, p=0xb61b8600 "", it=0xa427f80, giststate=0xbfbcde90)
    at gistutil.c:409
#6  0x08095f20 in gistdoinsert (r=0xb5862698, itup=0xa427f80, freespace=0, giststate=0xbfbcde90)
    at gist.c:715
#7  0x08095101 in gistinsert (fcinfo=0xbfbcfb64) at gist.c:277
#8  0x083c9416 in FunctionCall6Coll (flinfo=0xa407e40, collation=0, arg1=3045467800, 
    arg2=3216834072, arg3=3216834252, arg4=172120476, arg5=3045317408, arg6=0) at fmgr.c:1432
#9  0x080b5951 in index_insert (indexRelation=0xb5862698, values=0xbfbcfe18, isnull=0xbfbcfecc "", 
    heap_t_ctid=0xa42599c, heapRelation=0xb583db20, checkUnique=UNIQUE_CHECK_NO) at indexam.c:215
#10 0x081ed69b in ExecInsertIndexTuples (slot=0xa414b80, tupleid=0xa42599c, estate=0xa413690)
    at execUtils.c:1085
#11 0x081fbdd1 in ExecInsert (slot=0xa414b80, planSlot=0xa414b80, estate=0xa413690, 
    canSetTag=1 '\001') at nodeModifyTable.c:247
#12 0x081fcaa9 in ExecModifyTable (node=0xa413c18) at nodeModifyTable.c:847
#13 0x081e2223 in ExecProcNode (node=0xa413c18) at execProcnode.c:371
#14 0x081e047a in ExecutePlan (estate=0xa413690, planstate=0xa413c18, operation=CMD_INSERT, 
    sendTuples=1 '\001', numberTuples=0, direction=ForwardScanDirection, dest=0xa417fb0)
    at execMain.c:1439
#15 0x081dee5f in standard_ExecutorRun (queryDesc=0xa417ff8, direction=ForwardScanDirection, 
    count=0) at execMain.c:313
#16 0x081ded79 in ExecutorRun (queryDesc=0xa417ff8, direction=ForwardScanDirection, count=0)
    at execMain.c:261
#17 0x082df44a in ProcessQuery (plan=0xa3e3860, 
    sourceText=0xa3a4bd0 "INSERT INTO "..., params=0x0, dest=0xa417fb0, 
    completionTag=0xbfbd018c "") at pquery.c:187
#18 0x082e084b in PortalRunMulti (portal=0xa346050, isTopLevel=1 '\001', dest=0xa417fb0, 
    altdest=0x854cee4, completionTag=0xbfbd018c "") at pquery.c:1276
#19 0x082e0482 in FillPortalStore (portal=0xa346050, isTopLevel=1 '\001') at pquery.c:1053
#20 0x082dfef5 in PortalRun (portal=0xa346050, count=2147483647, isTopLevel=1 '\001', 
    dest=0xa3e38d0, altdest=0xa3e38d0, completionTag=0xbfbd035c "") at pquery.c:782
#21 0x082da663 in exec_simple_query (
    query_string=0xa3a4bd0 "INSERT INTO "...) at postgres.c:1018
#22 0x082de751 in PostgresMain (argc=2, argv=0xa329950, username=0xa3298c8 "...")
    at postgres.c:3926
#23 0x08295269 in BackendRun (port=0xa34a068) at postmaster.c:3606
#24 0x082948ae in BackendStartup (port=0xa34a068) at postmaster.c:3291
#25 0x08291b67 in ServerLoop () at postmaster.c:1455
#26 0x082912f1 in PostmasterMain (argc=3, argv=0xa328318) at postmaster.c:1116
#27 0x0821999c in main (argc=3, argv=0xa328318) at main.c:199