Add sanity check of query

1dd6bd19 · Teodor Sigaev · 90456d13 · 1dd6bd19
隐藏空白更改
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Showing with 2 addition and 1 deletion

contrib/tsearch2/rank.c contrib/tsearch2/rank.c +2 -1

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--- a/contrib/tsearch2/rank.c
+++ b/contrib/tsearch2/rank.c
@@ -303,7 +303,8 @@ calc_rank_or(float *w, tsvector * t, QUERYTYPE * q)
 */
                res = res + ( wjm + resj - wjm/((jm+1)*(jm+1)))/1.64493406685; 
 	}
-	res = res /size;
+	if ( size > 0 )
+		res = res /size;
 	pfree(item);
 	return res;
 }