Update sql-dftables.txt

修改字符长度，方便做外贸网站

src/install/sql-dftables.txt

@@ -240,7 +240,7 @@ CREATE TABLE `#@__arctype` (
 	`reid` smallint(5) unsigned NOT NULL default '0',
 	`topid` smallint(5) unsigned NOT NULL default '0',
 	`sortrank` smallint(5) unsigned NOT NULL default '50',
-	`typename` varchar(255) NOT NULL default '',
+	`typename` char(255) NOT NULL default '',
 	`cnoverview` char(255) NOT NULL default '',
 	`enname` char(255) NOT NULL default '',
 	`enoverview` char(255) NOT NULL default '',
@@ -260,8 +260,8 @@ CREATE TABLE `#@__arctype` (
 	`namerule` char(50) NOT NULL default '',
 	`namerule2` char(50) NOT NULL default '',
 	`modname` char(20) NOT NULL default '',
-	`description` char(255) NOT NULL default '',
-	`keywords` varchar(60) NOT NULL default '',
+	`description` varchar(255) NOT NULL default '',
+	`keywords` varchar(255) NOT NULL default '',
 	`seotitle` varchar(255) NOT NULL default '',
 	`moresite` tinyint(1) unsigned NOT NULL default '0',
 	`sitepath` char(60) NOT NULL default '',