add change log and test

Signed-off-by: bowenlan-amzn <bowenlan23@gmail.com>

Author: bowenlan-amzn

CHANGELOG.md

@@ -20,6 +20,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - Add support for more than one protocol for transport ([#12967](https://github.com/opensearch-project/OpenSearch/pull/12967))
 - [Tiered Caching] Add dimension-based stats to ICache implementations. ([#12531](https://github.com/opensearch-project/OpenSearch/pull/12531))
 - Add changes for overriding remote store and replication settings during snapshot restore. ([#11868](https://github.com/opensearch-project/OpenSearch/pull/11868))
+- Add cluster setting to dynamically disable filter rewrite optimization. ([#13179](https://github.com/opensearch-project/OpenSearch/pull/13179))
 
 ### Dependencies
 - Bump `org.apache.commons:commons-configuration2` from 2.10.0 to 2.10.1 ([#12896](https://github.com/opensearch-project/OpenSearch/pull/12896))

server/src/internalClusterTest/java/org/opensearch/search/aggregations/bucket/FilterRewriteIT.java

@@ -10,6 +10,7 @@
 
 import com.carrotsearch.randomizedtesting.annotations.ParametersFactory;
 
+import org.opensearch.action.admin.cluster.settings.ClusterUpdateSettingsResponse;
 import org.opensearch.action.index.IndexRequestBuilder;
 import org.opensearch.action.search.SearchResponse;
 import org.opensearch.common.settings.Settings;
@@ -93,7 +94,7 @@ public void testMinDocCountOnDateHistogram() throws Exception {
         final SearchResponse allResponse = client().prepareSearch("idx")
             .setSize(0)
             .setQuery(QUERY)
-            .addAggregation(dateHistogram("histo").field("date").dateHistogramInterval(DateHistogramInterval.DAY).minDocCount(0))
+            .addAggregation(dateHistogram("histo").field("date").calendarInterval(DateHistogramInterval.DAY).minDocCount(0))
             .get();
 
         final Histogram allHisto = allResponse.getAggregations().get("histo");
@@ -104,4 +105,38 @@ public void testMinDocCountOnDateHistogram() throws Exception {
             assertEquals(entry.getValue(), results.get(entry.getKey()));
         }
     }
+
+    public void testDisableOptimizationGivesSameResults() throws Exception {
+        SearchResponse response = client().prepareSearch("idx")
+            .setSize(0)
+            .setQuery(QUERY)
+            .addAggregation(dateHistogram("histo").field("date").calendarInterval(DateHistogramInterval.DAY).minDocCount(0))
+            .get();
+
+        final Histogram allHisto1 = response.getAggregations().get("histo");
+
+        final ClusterUpdateSettingsResponse updateSettingResponse = client().admin()
+            .cluster()
+            .prepareUpdateSettings()
+            .setTransientSettings(Settings.builder().put("search.filter_rewrite.enabled", false))
+            .get();
+
+        assertEquals(updateSettingResponse.getTransientSettings().get("search.filter_rewrite.enabled"), "false");
+
+        response = client().prepareSearch("idx")
+            .setSize(0)
+            .setQuery(QUERY)
+            .addAggregation(dateHistogram("histo").field("date").calendarInterval(DateHistogramInterval.DAY).minDocCount(0))
+            .get();
+
+        final Histogram allHisto2 = response.getAggregations().get("histo");
+
+        assertEquals(allHisto1, allHisto2);
+
+        client().admin()
+            .cluster()
+            .prepareUpdateSettings()
+            .setTransientSettings(Settings.builder().putNull("search.filter_rewrite.enabled"))
+            .get();
+    }
 }