sqlalchemy/dialects/postgresql/__init__.py:

- Added import references to JSON class

 sqlalchemy/dialects/postgresql/base.py:
 - Added visitor method for JSON class

 sqlalchemy/dialects/postgresql/pgjson (new):
 - JSON class, supports automatic serialization and deserialization of json data, as well as basic json operators.

1 files changed, 3 insertions, 0 deletions

diff --git a/lib/sqlalchemy/dialects/postgresql/base.py b/lib/sqlalchemy/dialects/postgresql/base.py
index b80f269c1..6469f3b70 100644
--- a/lib/sqlalchemy/dialects/postgresql/base.py
+++ b/lib/sqlalchemy/dialects/postgresql/base.py
@@ -1187,6 +1187,9 @@ class PGTypeCompiler(compiler.GenericTypeCompiler):
     def visit_HSTORE(self, type_):
         return "HSTORE"
 
+    def visit_JSON(self, type_):
+        return "JSON"
+
     def visit_INT4RANGE(self, type_):
         return "INT4RANGE"