diff --git a/lib/activerecord/tablefree.rb b/lib/activerecord/tablefree.rb
index b4ad841..110d371 100644
--- a/lib/activerecord/tablefree.rb
+++ b/lib/activerecord/tablefree.rb
@@ -138,7 +138,7 @@ def destroy_all(*_args)
       end
 
       case ActiveRecord::VERSION::MAJOR
-      when 5, 6, 7
+      when 5, 6, 7, 8
         def find_by_sql(*_args)
           case tablefree_options[:database]
           when :pretend_success
@@ -152,13 +152,8 @@ def find_by_sql(*_args)
       end
 
       def transaction
-        #        case tablefree_options[:database]
-        #        when :pretend_success
         @_current_transaction_records ||= []
         yield
-        #        when :fail_fast
-        #          raise NoDatabase.new("Can't #transaction on Tablefree class")
-        #        end
       end
 
       def tablefree?
@@ -168,6 +163,21 @@ def tablefree?
       def table_exists?
         false
       end
+
+      def data_source_exists?
+        false
+      end
+
+      def connection_pool
+        @connection_pool ||= Class.new do
+          def with_connection(*args)
+            yield ActiveRecord::Tablefree::Connection.new
+          end
+          def connection
+            self
+          end
+        end.new
+      end
     end
 
     module ClassMethods
@@ -231,7 +241,8 @@ def reload(*_args)
         end
       end
 
-      def add_to_transaction; end
+      def add_to_transaction(ensure_finalize = true)
+      end
 
       private
 
diff --git a/lib/activerecord/tablefree/connection.rb b/lib/activerecord/tablefree/connection.rb
index 7aad9fe..1b37f9d 100644
--- a/lib/activerecord/tablefree/connection.rb
+++ b/lib/activerecord/tablefree/connection.rb
@@ -1,16 +1,14 @@
 module ActiveRecord::Tablefree
   class Connection < ActiveRecord::ConnectionAdapters::AbstractAdapter
     def initialize
+      super(ActiveRecord::Base, nil, nil, { adapter: "tablefree" })
       @connection          = Object.new # The Raw Connection
       @owner               = nil
       @instrumenter        = ActiveSupport::Notifications.instrumenter
       @logger              = Object.new
       @config              = Object.new
-      @pool                = nil
       @schema_cache        = ActiveRecord::Tablefree::SchemaCache.new
       @quoted_column_names, @quoted_table_names = {}, {}
-      @visitor = Object.new
-      @lock = Object.new
       @prepared_statements = false
     end
 
@@ -71,5 +69,9 @@ def execute(*_args)
     def cacheable_query(arel) # :nodoc:
       ActiveRecord::Tablefree::StatementCache.partial_query visitor, arel.ast, collector
     end
+
+    def internal_exec_query(sql, name = "SQL", binds = [], prepare: false, async: false, allow_retry: false) # :nodoc:
+      []
+    end
   end
 end