Stop logging SHOW FIELDS and SET SQL_AUTO_IS_NULL=0 for the MysqlAdap…

…ter as they only clutter up the log and offer no value [DHH]

activerecord/CHANGELOG

@@ -1,5 +1,7 @@
 *2.2.1 [RC2 or 2.2 final]*
 
+* Stop logging SHOW FIELDS and SET SQL_AUTO_IS_NULL=0 as they only clutter up the log and offer no value [DHH]
+
 * Ensure indices don't flip order in schema.rb #1266 [Jordi Bunster]
 
 * Fixed that serialized strings should never be type-casted (i.e. turning "Yes" to a boolean) #857 [Andreas Korth]

activerecord/lib/active_record/connection_adapters/mysql_adapter.rb

@@ -305,8 +305,12 @@ def select_rows(sql, name = nil)
         rows
       end
 
-      def execute(sql, name = nil) #:nodoc:
-        log(sql, name) { @connection.query(sql) }
+      def execute(sql, name = nil, skip_logging = false) #:nodoc:
+        if skip_logging
+          @connection.query(sql)
+        else
+          log(sql, name) { @connection.query(sql) }
+        end
       rescue ActiveRecord::StatementInvalid => exception
         if exception.message.split(":").first =~ /Packets out of order/
           raise ActiveRecord::StatementInvalid, "'Packets out of order' error was received from the database. Please update your mysql bindings (gem install mysql) and read http://dev.mysql.com/doc/mysql/en/password-hashing.html for more information.  If you're on Windows, use the Instant Rails installer to get the updated mysql bindings."
@@ -437,7 +441,7 @@ def indexes(table_name, name = nil)#:nodoc:
       def columns(table_name, name = nil)#:nodoc:
         sql = "SHOW FIELDS FROM #{quote_table_name(table_name)}"
         columns = []
-        execute(sql, name).each { |field| columns << MysqlColumn.new(field[0], field[4], field[1], field[2] == "YES") }
+        execute(sql, name, true).each { |field| columns << MysqlColumn.new(field[0], field[4], field[1], field[2] == "YES") }
         columns
       end
 
@@ -555,7 +559,7 @@ def configure_connection
 
           # By default, MySQL 'where id is null' selects the last inserted id.
           # Turn this off. http://dev.rubyonrails.org/ticket/6778
-          execute("SET SQL_AUTO_IS_NULL=0")
+          execute("SET SQL_AUTO_IS_NULL=0", "ID NULL OFF", true)
         end
 
         def select(sql, name = nil)