Fix small bug in headline generation.

Patch from Sushant Sinha 
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 53180705bdd16da5dfef4c0e0fbc296fa7068e7d..07e71d9b3f82fdb29dd8930c0b3444f7de74e4e5 100644 (file)
--- a/src/backend/tsearch/wparser_def.c
+++ b/src/backend/tsearch/wparser_def.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *   $PostgreSQL: pgsql/src/backend/tsearch/wparser_def.c,v 1.15 2008/06/17 16:09:06 momjian Exp $
+ *   $PostgreSQL: pgsql/src/backend/tsearch/wparser_def.c,v 1.16 2008/10/17 17:27:46 teodor Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -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);