1 files changed, 4 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
index 2c43c46a3d..27291bd2ea 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
@@ -201,6 +201,10 @@ module ActiveRecord
         true
       end
 
+      def supports_json?
+        postgresql_version >= 90200
+      end
+
       def index_algorithms
         { concurrently: 'CONCURRENTLY' }
       end