type casted PG bytea values are represented as a Hash.

This is a follow up to: 97f0d9a0
This change is also related to: df0edafa

activerecord/lib/active_record/log_subscriber.rb

@@ -23,6 +23,8 @@ def initialize
     def render_bind(column, value)
       if column
         if column.binary?
+          # This specifically deals with the PG adapter that casts bytea columns into a Hash.
+          value = value[:value] if value.is_a?(Hash)
           value = "<#{value.bytesize} bytes of binary data>"
         end