[stable-1] mysql_query: fix false change reports when IF NOT EXISTS clause is used (#375)

* mysql_query: fix false change reports when IF NOT EXISTS clause is used (#322)

* mysql_query: fix false change reports when IF NOT EXISTS clause is used

* Fix

* Fix doc, add fragment

* Improve doc

(cherry picked from commit 647461010d)

* Fix tests

tests/integration/targets/setup_mysql/tasks/install.yml

@@ -28,6 +28,23 @@
 - name: "{{ role_name }} | install | install python packages"
   pip:
     name: "{{ python_packages }}"
+  register: connector
+
+- name: Extract connector.name.0 content
+  set_fact:
+    connector_name: "{{ connector.name.0 }}"
+
+- name: Debug connector_name content
+  debug:
+    msg: '{{ connector_name }}'
+
+- name: Extract connector version
+  set_fact:
+    connector_ver: "{{ connector_name.split('=')[2].strip() }}"
+
+- name: Debug connector_ver var content
+  debug:
+    msg: '{{ connector_ver }}'
 
 - name: "{{ role_name }} | install | install packages required by mysql"
   apt: