Fix small bug in headline generation.

Patch from Sushant Sinha <sushant354@gmail.com>
http://archives.postgresql.org/pgsql-hackers/2008-07/msg00785.php

diff --git a/src/backend/tsearch/wparser_def.c b/src/backend/tsearch/wparser_def.c
index 4400e6489bfc5729bba46de4ffe336b1e88e6a03..4ca2387cf3a4a3f669fbadd7d92a275ab3395e99 100644 (file)
--- a/src/backend/tsearch/wparser_def.c
+++ b/src/backend/tsearch/wparser_def.c
@@ -1621,7 +1621,7 @@ hlCover(HeadlineParsedText *prs, TSQuery query, int *p, int *q)
        QueryItem  *item = GETQUERY(query);
        int                     pos = *p;
 
-       *q = 0;
+       *q = -1;
        *p = 0x7fffffff;
 
        for (j = 0; j < query->size; j++)
@@ -1643,7 +1643,7 @@ hlCover(HeadlineParsedText *prs, TSQuery query, int *p, int *q)
                item++;
        }
 
-       if (*q == 0)
+       if (*q < 0)
                return false;
 
        item = GETQUERY(query);