Fix term(s) query for range field (#25918)

core/src/main/java/org/elasticsearch/index/mapper/RangeFieldMapper.java

@@ -283,7 +283,7 @@ public class RangeFieldMapper extends FieldMapper {
 
         @Override
         public Query termQuery(Object value, QueryShardContext context) {
-            Query query = rangeQuery(value, value, true, true, context);
+            Query query = rangeQuery(value, value, true, true, ShapeRelation.INTERSECTS, context);
             if (boost() != 1f) {
                 query = new BoostQuery(query, boost());
             }

core/src/test/java/org/elasticsearch/index/mapper/RangeFieldTypeTests.java

@@ -276,4 +276,23 @@ public class RangeFieldTypeTests extends FieldTypeTestCase {
         assertEquals(InetAddresses.forString("::1"), RangeFieldMapper.RangeType.IP.parse("::1", randomBoolean()));
         assertEquals(InetAddresses.forString("::1"), RangeFieldMapper.RangeType.IP.parse(new BytesRef("::1"), randomBoolean()));
     }
+
+    public void testTermQuery() throws Exception, IllegalArgumentException {
+        // See https://github.com/elastic/elasticsearch/issues/25950
+        Settings indexSettings = Settings.builder()
+            .put(IndexMetaData.SETTING_VERSION_CREATED, Version.CURRENT).build();
+        IndexSettings idxSettings = IndexSettingsModule.newIndexSettings(randomAlphaOfLengthBetween(1, 10), indexSettings);
+        QueryShardContext context = new QueryShardContext(0, idxSettings, null, null, null, null, null, xContentRegistry(),
+            writableRegistry(), null, null, () -> nowInMillis, null);
+        RangeFieldMapper.RangeFieldType ft = new RangeFieldMapper.RangeFieldType(type, Version.CURRENT);
+        ft.setName(FIELDNAME);
+        ft.setIndexOptions(IndexOptions.DOCS);
+
+        Object value = nextFrom();
+        ShapeRelation relation = ShapeRelation.INTERSECTS;
+        boolean includeLower = true;
+        boolean includeUpper = true;
+        assertEquals(getExpectedRangeQuery(relation, value, value, includeLower, includeUpper),
+            ft.termQuery(value, context));
+    }
 }