diff --git a/.travis.yml b/.travis.yml
index 248f0015..632fc369 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -20,12 +20,13 @@ before_script:
     - mkdir -p build/logs
 
 script:
-    - if [[ ${TRAVIS_PHP_VERSION:0:3} == "7.1" ]]; then CM="phpdbg -qrr"; NC=""; else CM=""; NC="--no-coverage"; fi
+    #- if [[ ${TRAVIS_PHP_VERSION:0:3} == "7.1" ]]; then CM="phpdbg -qrr"; NC=""; else CM=""; NC="--no-coverage"; fi
+    - if [[ ${TRAVIS_PHP_VERSION:0:3} == "7.1" ]]; then CM=""; NC=""; else CM=""; NC="--no-coverage"; fi
     - $CM ./vendor/bin/phpunit $NC
     - $CM ./vendor/bin/phpunit --configuration phpunit-mysql.xml $NC
 
 after_script:
-    - if [[ ${TRAVIS_PHP_VERSION:0:3} == "7.1" ]]; then vendor/bin/phpcov merge build/logs/ --clover /build/logs/clover.xml; vendor/bin/test-reporter; fi
+  - if [[ ${TRAVIS_PHP_VERSION:0:3} == "7.1" ]]; then vendor/bin/phpcov merge build/logs/ --clover cc.xml; vendor/bin/test-reporter --coverage-report cc.xml; fi
 
 notifications:
     urls:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5428716b..24286d3f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+## 1.1.2
+
+ - Fix how getDebugQuery() works without sql-formatter
+ - Fix Query::dsql will return instance of same class if you extend. #116
+
 ## 1.1.1
 
 Bugfix and README.md update.
diff --git a/README.md b/README.md
index fa83ade5..28d0d539 100644
--- a/README.md
+++ b/README.md
@@ -23,7 +23,7 @@ DSQL has been in production since 2006, initially included in [AModules2](https:
 [![Gitter](https://img.shields.io/gitter/room/atk4/data.svg?maxAge=2592000)](https://gitter.im/atk4/dataset?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 [![Documentation Status](https://readthedocs.org/projects/dsql/badge/?version=latest)](http://dsql.readthedocs.io/en/latest/?badge=latest)
 [![License](https://poser.pugx.org/atk4/dsql/license)](https://packagist.org/packages/atk4/dsql)
-[![GitHub release](https://img.shields.io/github/release/atk4/dsql.svg?maxAge=2592000)]()
+[![GitHub release](https://img.shields.io/badge/release-1.1.9-brightgreen.png?style=default)](CHANGELOG.md)
 [![Build Status](https://travis-ci.org/atk4/dsql.png?branch=develop)](https://travis-ci.org/atk4/dsql)
 [![Code Climate](https://codeclimate.com/github/atk4/dsql/badges/gpa.svg)](https://codeclimate.com/github/atk4/dsql)
 [![Test Coverage](https://codeclimate.com/github/atk4/dsql/badges/coverage.svg)](https://codeclimate.com/github/atk4/dsql/coverage)
@@ -173,4 +173,4 @@ frequent topics:
 
 The code of DSQL is available under MIT license with community and [commercial support](http://www.agiletoolkit.org/enterprise) available. 
 
-Our team wishes to thanks [Reddit PHP community](https://www.reddit.com/r/PHP/) for feedback and help in creation of this project.
\ No newline at end of file
+Our team wishes to thanks [Reddit PHP community](https://www.reddit.com/r/PHP/) for feedback and help in creation of this project.
diff --git a/docs/queries.rst b/docs/queries.rst
index 73a83578..30edb011 100644
--- a/docs/queries.rst
+++ b/docs/queries.rst
@@ -564,6 +564,14 @@ The third argument specifies type of join and defaults to "left" join. You can s
 
 Method can be executed several times on the same Query object.
 
+Joining on expression
+`````````````````````
+
+For a more complex join conditions, you can pass second argument as expression::
+
+    $q->table('user', 'u');
+    $q->join('address a', new Expression('a.name like u.pattern'));
+
 
 Limiting result-set
 -------------------
diff --git a/phpunit-mysql.xml b/phpunit-mysql.xml
index dfb6b2f4..9a6beccd 100644
--- a/phpunit-mysql.xml
+++ b/phpunit-mysql.xml
@@ -19,6 +19,6 @@
         </whitelist>
     </filter>
     <logging>
-        <log type="coverage-php" target="build/logs/coverage-mysql.cov"/>
+        <log type="coverage-clover" target="build/logs/clover-mysql.xml"/>
     </logging>
 </phpunit>
diff --git a/src/Expression.php b/src/Expression.php
index 7895c105..9720ec5f 100644
--- a/src/Expression.php
+++ b/src/Expression.php
@@ -477,7 +477,7 @@ public function getDebugQuery($html = null)
             $result = $d;  // output as-is
         }
         if (!$html) {
-            return strip_tags($result, '<>');
+            return str_replace('#lte#', '<=', strip_tags(str_replace('<=', '#lte#', $result), '<>'));
         }
 
         return $result;
diff --git a/src/Query.php b/src/Query.php
index cd981125..f9fc0bff 100644
--- a/src/Query.php
+++ b/src/Query.php
@@ -1220,7 +1220,7 @@ public function mode($mode)
      */
     public function dsql($properties = [])
     {
-        $q = new self($properties);
+        $q = new static($properties);
         $q->connection = $this->connection;
 
         return $q;