ts_headline() dumps core - Mailing list pgsql-hackers

Hi,

I found a bug in ts_headline(). Here is a reproducible sql.

-- sql ---
SELECT substring(version(), 0, 20);
CREATE TEXT SEARCH PARSER dummy_parser (   START = prsd_start,   GETTOKEN = prsd_nexttoken,   END = prsd_end,

--
--  HEADLINE = prsd_headline,
--
   LEXTYPES = prsd_lextype
);
CREATE TEXT SEARCH CONFIGURATION pg_catalog.dummy (PARSER = dummy_parser);
SELECT ts_headline('dummy', 'test', 'test'::tsquery);
----------

-- result --     substring      
---------------------PostgreSQL 8.3RC1 o
(1 row)

CREATE TEXT SEARCH PARSER
CREATE TEXT SEARCH CONFIGURATION
psql:sql:14: server closed the connection unexpectedly       This probably means the server terminated abnormally
beforeor while processing the request.
 
psql:sql:14: connection to server was lost
------------

This is the stack trace.

-----
(gdb) bt
#0  0x00000000 in ?? ()
#1  0x08321a2c in FunctionCall3 (flinfo=0x84f66e8, arg1=3219808336, arg2=0, arg3=139282728) at fmgr.c:1304
#2  0x0825a6c4 in ts_headline_byid_opt (fcinfo=0xbfea60b0) at wparser.c:323
#3  0x083212c4 in DirectFunctionCall3 (func=0x825a57e <ts_headline_byid_opt>, arg1=32776, arg2=139283056,
arg3=139282728)at fmgr.c:1030
 
#4  0x0825a780 in ts_headline_byid (fcinfo=0xbfea6318) at wparser.c:344
#5  0x08199579 in ExecMakeFunctionResult (fcache=0x84efe98, econtext=0x84efe10, isNull=0x84f0470 "", isDone=0x84f04c8)
atexecQual.c:1351
 
#6  0x08199daa in ExecEvalFunc (fcache=0x84efe98, econtext=0x84efe10, isNull=0x84f0470 "", isDone=0x84f04c8) at
execQual.c:1753
#7  0x0819f3c3 in ExecTargetList (targetlist=0x84f0340, econtext=0x84efe10, values=0x84f0460, isnull=0x84f0470 "",
itemIsDone=0x84f04c8,  isDone=0xbfea6630) at execQual.c:4601
 
#8  0x0819f7d6 in ExecProject (projInfo=0x84f0480, isDone=0xbfea6630) at execQual.c:4802
#9  0x081ac85a in ExecResult (node=0x84efd88) at nodeResult.c:155
#10 0x08197195 in ExecProcNode (node=0x84efd88) at execProcnode.c:319
#11 0x08194efe in ExecutePlan (estate=0x84efbf8, planstate=0x84efd88, operation=CMD_SELECT, numberTuples=0,
direction=ForwardScanDirection,  dest=0x84d4bf8) at execMain.c:1233
 
#12 0x08193b24 in ExecutorRun (queryDesc=0x84d82d8, direction=ForwardScanDirection, count=0) at execMain.c:267
#13 0x08254634 in PortalRunSelect (portal=0x84e2bd0, forward=1 '\001', count=0, dest=0x84d4bf8) at pquery.c:943
#14 0x0825433e in PortalRun (portal=0x84e2bd0, count=2147483647, isTopLevel=1 '\001', dest=0x84d4bf8,
altdest=0x84d4bf8,  completionTag=0xbfea68fa "") at pquery.c:769
 
#15 0x0824eddf in exec_simple_query (query_string=0x84d3aa0 "SELECT ts_headline('dummy', 'test', 'test'::tsquery);") at
postgres.c:963
#16 0x08252b69 in PostgresMain (argc=4, argv=0x8458e58, username=0x8458e38 "y-asaba") at postgres.c:3535
#17 0x0821db22 in BackendRun (port=0x846c918) at postmaster.c:3207
#18 0x0821d0c7 in BackendStartup (port=0x846c918) at postmaster.c:2830
#19 0x0821ab22 in ServerLoop () at postmaster.c:1274
#20 0x0821a52f in PostmasterMain (argc=1, argv=0x8456070) at postmaster.c:1029
#21 0x081be07b in main (argc=1, argv=0x8456070) at main.c:188
-----

Regards,
--
Yoshiyuki Asaba
y-asaba@sraoss.co.jp