diff --git a/docs/en/reference/annotations-reference.rst b/docs/en/reference/annotations-reference.rst
index 27271f491c7..6b1f021f5a3 100644
--- a/docs/en/reference/annotations-reference.rst
+++ b/docs/en/reference/annotations-reference.rst
@@ -428,7 +428,7 @@ Optional attributes:
    -  ``where``: SQL WHERE condition to be used for partial indexes. It will
       only have effect on supported platforms.
 
-Example:
+Basic example:
 
 .. code-block:: php
 
@@ -441,6 +441,19 @@ Example:
     {
     }
 
+Example with partial indexes:
+
+.. code-block:: php
+
+    <?php
+    /**
+     * @Entity
+     * @Table(name="ecommerce_products",indexes={@Index(name="search_idx", columns={"name", "email"}, options={"where": "(((id IS NOT NULL) AND (name IS NULL)) AND (email IS NULL))"})})
+     */
+    class ECommerceProduct
+    {
+    }
+
 .. _annref_id:
 
 @Id
@@ -1168,7 +1181,7 @@ Optional attributes:
    -  ``where``: SQL WHERE condition to be used for partial indexes. It will
       only have effect on supported platforms.
 
-Example:
+Basic example:
 
 .. code-block:: php
 
@@ -1181,6 +1194,19 @@ Example:
     {
     }
 
+Example with partial indexes:
+
+.. code-block:: php
+
+    <?php
+    /**
+     * @Entity
+     * @Table(name="ecommerce_products",uniqueConstraints={@UniqueConstraint(name="search_idx", columns={"name", "email"}, options={"where": "(((id IS NOT NULL) AND (name IS NULL)) AND (email IS NULL))"})})
+     */
+    class ECommerceProduct
+    {
+    }
+
 .. _annref_version:
 
 @Version