speeding up ignored sql testing

activerecord/test/cases/helper.rb

@@ -65,6 +65,9 @@ class SQLCounter
     # ignored SQL.  This ignored SQL is for Oracle.
     ignored_sql.concat [/^select .*nextval/i, /^SAVEPOINT/, /^ROLLBACK TO/, /^\s*select .* from all_triggers/im]
 
+    cattr_accessor :ignored_sql_regexp
+    self.ignored_sql_regexp = Regexp.union ignored_sql
+
     cattr_accessor :log
     self.log = []
 
@@ -74,7 +77,7 @@ def call(name, start, finish, message_id, values)
       # FIXME: this seems bad. we should probably have a better way to indicate
       # the query was cached
       unless 'CACHE' == values[:name]
-        self.class.log << sql unless self.class.ignored_sql.any? { |r| sql =~ r }
+        self.class.log << sql unless self.class.ignored_sql_regexp =~ sql
       end
     end
   end