View refactoring and addition of raw collationoption. Significant performance improvements in view indexer.

git-svn-id: https://svn.apache.org/repos/asf/couchdb/trunk@814893 13f79535-47bb-0310-9956-ffa450edef68

3 files changed, 125 insertions, 2 deletions

diff --git a/share/www/script/test/design_docs.js b/share/www/script/test/design_docs.js
index 25c36424..82c186f8 100644
--- a/share/www/script/test/design_docs.js
+++ b/share/www/script/test/design_docs.js
@@ -55,7 +55,7 @@ function() {
   var vinfo = dinfo.view_index;
   TEquals(51, vinfo.disk_size);
   TEquals(false, vinfo.compact_running);
-  TEquals("64625dce94960fd5ca116e42aa9d011a", vinfo.signature);
+  TEquals("3f88e53b303e2342e49a66c538c30679", vinfo.signature);
 
   db.bulkSave(makeDocs(1, numDocs + 1));
 
diff --git a/share/www/script/test/list_views.js b/share/www/script/test/list_views.js
index d845f926..55d34acc 100644
--- a/share/www/script/test/list_views.js
+++ b/share/www/script/test/list_views.js
@@ -317,7 +317,7 @@ couchTests.list_views = function(debug) {
   T(!(/Key: 1 /.test(xhr.responseText)));
   T(/Key: 2/.test(xhr.responseText));
   T(/FirstKey: 2/.test(xhr.responseText));
-  T(/LastKey: 11/.test(xhr.responseText));
+  T(/LastKey: 7/.test(xhr.responseText));
 
   // no multi-key fetch allowed when group=false
   xhr = CouchDB.request("POST", "/test_suite_db/_design/lists/_list/simpleForm/withReduce?group=false", {
diff --git a/share/www/script/test/view_collation_raw.js b/share/www/script/test/view_collation_raw.js
new file mode 100644
index 00000000..08f37fae
--- /dev/null
+++ b/share/www/script/test/view_collation_raw.js
@@ -0,0 +1,123 @@
+// Licensed under the Apache License, Version 2.0 (the "License"); you may not
+// use this file except in compliance with the License. You may obtain a copy of
+// the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations under
+// the License.
+
+couchTests.view_collation_raw = function(debug) {
+  var db = new CouchDB("test_suite_db", {"X-Couch-Full-Commit":"false"});
+  db.deleteDb();
+  db.createDb();
+  if (debug) debugger;
+
+  // NOTE, the values are already in their correct sort order. Consider this
+  // a specification of collation of json types.
+
+  var values = [];
+
+  //  numbers
+  values.push(1);
+  values.push(2);
+  values.push(3);
+  values.push(4);
+  
+  values.push(false);
+  values.push(null);
+  values.push(true);
+  
+  // then object, compares each key value in the list until different.
+  // larger objects sort after their subset objects.
+  values.push({a:1});
+  values.push({a:2});
+  values.push({b:1});
+  values.push({b:2});
+  values.push({b:2, a:1}); // Member order does matter for collation.
+                           // CouchDB preserves member order
+                           // but doesn't require that clients will.
+                           // (this test might fail if used with a js engine
+                           // that doesn't preserve order)
+  values.push({b:2, c:2});
+
+  // then arrays. compared element by element until different.
+  // Longer arrays sort after their prefixes
+  values.push(["a"]);
+  values.push(["b"]);
+  values.push(["b","c"]);
+  values.push(["b","c", "a"]);
+  values.push(["b","d"]);
+  values.push(["b","d", "e"]);
+
+
+  // then text, case sensitive
+  values.push("A");
+  values.push("B");
+  values.push("a");
+  values.push("aa");
+  values.push("b");
+  values.push("ba");
+  values.push("bb");
+
+  for (var i=0; i<values.length; i++) {
+    db.save({_id:(i).toString(), foo:values[i]});
+  }
+
+  var designDoc = {
+    _id:"_design/test", // turn off couch.js id escaping?
+    language: "javascript",
+    views: {
+      test: {map: "function(doc) { emit(doc.foo, null); }",
+            options: {collation:"raw"}}
+    }
+  }
+  T(db.save(designDoc).ok);
+  var rows = db.view("test/test").rows;
+  for (i=0; i<values.length; i++) {
+    T(equals(rows[i].key, values[i]));
+  }
+
+  // everything has collated correctly. Now to check the descending output
+  rows = db.view("test/test", {descending: true}).rows;
+  for (i=0; i<values.length; i++) {
+    T(equals(rows[i].key, values[values.length - 1 -i]));
+  }
+
+  // now check the key query args
+  for (i=1; i<values.length; i++) {
+    rows = db.view("test/test", {key:values[i]}).rows;
+    T(rows.length == 1 && equals(rows[0].key, values[i]));
+  }
+
+  // test inclusive_end=true (the default)
+  // the inclusive_end=true functionality is limited to endkey currently
+  // if you need inclusive_start=false for startkey, please do implement. ;)
+  var rows = db.view("test/test", {endkey : "b", inclusive_end:true}).rows;
+  T(rows[rows.length-1].key == "b")
+  // descending=true
+  var rows = db.view("test/test", {endkey : "b",
+    descending:true, inclusive_end:true}).rows;
+  T(rows[rows.length-1].key == "b")
+
+  // test inclusive_end=false
+  var rows = db.view("test/test", {endkey : "b", inclusive_end:false}).rows;
+  T(rows[rows.length-1].key == "aa")
+  // descending=true
+  var rows = db.view("test/test", {endkey : "b",
+    descending:true, inclusive_end:false}).rows;
+  T(rows[rows.length-1].key == "ba")
+  
+  var rows = db.view("test/test", {
+    endkey : "b", endkey_docid: "10",
+    inclusive_end:false}).rows;
+  T(rows[rows.length-1].key == "aa")
+  
+  var rows = db.view("test/test", {
+    endkey : "b", endkey_docid: "11",
+    inclusive_end:false}).rows;
+  T(rows[rows.length-1].key == "aa")
+};