1 files changed, 9 insertions, 16 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb b/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb
index 0a14cdfe89..75f244b3f3 100644
--- a/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb
@@ -29,7 +29,7 @@ module ActiveRecord
 
   module ConnectionAdapters
     class Mysql2Adapter < AbstractMysqlAdapter
-      ADAPTER_NAME = 'Mysql2'
+      ADAPTER_NAME = 'Mysql2'.freeze
 
       def initialize(connection, logger, connection_options, config)
         super
@@ -66,21 +66,17 @@ module ActiveRecord
         exception.error_number if exception.respond_to?(:error_number)
       end
 
+      #--
       # QUOTING ==================================================
+      #++
 
       def quote_string(string)
         @connection.escape(string)
       end
 
-      def quoted_date(value)
-        if value.acts_like?(:time) && value.respond_to?(:usec)
-          "#{super}.#{sprintf("%06d", value.usec)}"
-        else
-          super
-        end
-      end
-
+      #--
       # CONNECTION MANAGEMENT ====================================
+      #++
 
       def active?
         return false unless @connection
@@ -104,7 +100,9 @@ module ActiveRecord
         end
       end
 
+      #--
       # DATABASE STATEMENTS ======================================
+      #++
 
       def explain(arel, binds = [])
         sql     = "EXPLAIN #{to_sql(arel, binds.dup)}"
@@ -232,11 +230,6 @@ module ActiveRecord
 
       alias exec_without_stmt exec_query
 
-      # Returns an ActiveRecord::Result instance.
-      def select(sql, name = nil, binds = [])
-        exec_query(sql, name)
-      end
-
       def insert_sql(sql, name = nil, pk = nil, id_value = nil, sequence_name = nil)
         super
         id_value || @connection.last_id
@@ -269,8 +262,8 @@ module ActiveRecord
         super
       end
 
-      def version
-        @version ||= @connection.info[:version].scan(/^(\d+)\.(\d+)\.(\d+)/).flatten.map { |v| v.to_i }
+      def full_version
+        @full_version ||= @connection.info[:version]
       end
 
       def set_field_encoding field_name