1-- editor to tbltickets --
  2set @query = if ((select count(*) from information_schema.columns where table_schema=database() and table_name='tbltickets' and column_name='editor') = 0, 'ALTER TABLE tbltickets ADD `editor` enum(\'plain\',\'markdown\') COLLATE utf8_unicode_ci NOT NULL DEFAULT \'plain\'', 'DO 0');
  3prepare statement from @query;
  4execute statement;
  5deallocate prepare statement;
  6
  7-- editor to tblticketreplies --
  8set @query = if ((select count(*) from information_schema.columns where table_schema=database() and table_name='tblticketreplies' and column_name='editor') = 0, 'ALTER TABLE tblticketreplies ADD `editor` enum(\'plain\',\'markdown\') COLLATE utf8_unicode_ci NOT NULL DEFAULT \'plain\'', 'DO 0');
  9prepare statement from @query;
 10execute statement;
 11deallocate prepare statement;
 12
 13-- editor to tblticketnotes --
 14set @query = if ((select count(*) from information_schema.columns where table_schema=database() and table_name='tblticketnotes' and column_name='editor') = 0, 'ALTER TABLE tblticketnotes ADD `editor` enum(\'plain\',\'markdown\') COLLATE utf8_unicode_ci NOT NULL DEFAULT \'plain\'', 'DO 0');
 15prepare statement from @query;
 16execute statement;
 17deallocate prepare statement;
 18