From bc2887344e4a9151cda4ee9af48fd074d830a3e3 Mon Sep 17 00:00:00 2001
From: Shay Banon <kimchy@gmail.com>
Date: Sat, 18 Aug 2012 18:15:54 +0200
Subject: [PATCH] convert to optimized match all query also when executing "*"
 query

---
 .../org/apache/lucene/queryParser/MapperQueryParser.java   | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/main/java/org/apache/lucene/queryParser/MapperQueryParser.java b/src/main/java/org/apache/lucene/queryParser/MapperQueryParser.java
index 3bb59b08f1d..bf85e94f090 100644
--- a/src/main/java/org/apache/lucene/queryParser/MapperQueryParser.java
+++ b/src/main/java/org/apache/lucene/queryParser/MapperQueryParser.java
@@ -547,8 +547,11 @@ public class MapperQueryParser extends QueryParser {
 
     @Override
     protected Query getWildcardQuery(String field, String termStr) throws ParseException {
-        if ("*".equals(field) && termStr.equals("*")) {
-            return newMatchAllDocsQuery();
+        if (termStr.equals("*")) {
+            // we want to optimize for match all query for the "*:*", and "*" cases
+            if ("*".equals(field) || field.equals(this.field)) {
+                return newMatchAllDocsQuery();
+            }
         }
         Collection<String> fields = extractMultiFields(field);
         if (fields != null) {