Updates

docs/references/api/tables_views.rst

@@ -449,7 +449,7 @@ The arrow operators(``->``, ``->>``) can also be used for accessing composite fi
 
 .. important::
 
-  When using the ``->`` and ``->>`` operators, PostgREST uses a query like ``to_jsonb(<col>)->'field'``. To make filtering and ordering on those nested fields use an index, the index needs to be created on the same expression, including the ``to_jsonb(...)`` call:
+  When using the ``->`` and ``->>`` operators on composite and array columns, PostgREST uses a query like ``to_jsonb(<col>)->'field'``. To make filtering and ordering on those nested fields use an index, the index needs to be created on the same expression, including the ``to_jsonb(...)`` call:
 
   .. code-block:: postgres
 
@@ -685,6 +685,14 @@ If we make a similar request on ``bigtable``, which has 3573458 rows, we would g
   HTTP/1.1 206 Partial Content
   Content-Range: 0-24/3572000
 
+.. _head_req:
+
+HEAD
+----
+
+A HEAD method will behave identically to GET except that no body will be returned (`RFC 2616 <https://datatracker.ietf.org/doc/html/rfc2616#section-9.4>`_) .
+As an optimization, the generated query won't execute an aggregate (to avoid unnecessary data transfer).
+
 .. _update:
 
 Update