- local success,err = engine:transaction(function() return engine:execute(set_names_query); end);
- if not success then
- log("error", "Failed to set database connection encoding to UTF8: %s", err);
+ local set_names_query = "SET NAMES '%s';"
+ local charset = "utf8";
+ if driver == "MySQL" then
+ set_names_query = set_names_query:gsub(";$", " COLLATE 'utf8_bin';");
+ local ok, charsets = self:transaction(function()
+ return self:select"SELECT `CHARACTER_SET_NAME` FROM `information_schema`.`CHARACTER_SETS` WHERE `CHARACTER_SET_NAME` LIKE 'utf8%' ORDER BY MAXLEN DESC LIMIT 1;";
+ end);
+ local row = ok and charsets();
+ charset = row and row[1] or charset;