Types: Emulate PostgreSQL's JSON(B) types using CrateDB's OBJECT

Author: amotl

src/sqlalchemy_cratedb/compiler.py

@@ -255,6 +255,12 @@ def visit_TIMESTAMP(self, type_, **kw):
             (type_.timezone and "WITH" or "WITHOUT") + " TIME ZONE",
         )
 
+    def visit_JSON(self, type_, **kw):
+        return "OBJECT"
+
+    def visit_JSONB(self, type_, **kw):
+        return "OBJECT"
+
 
 class CrateCompiler(compiler.SQLCompiler):