diff --git a/100_core/src/gplx/Err.java b/100_core/src/gplx/Err.java
index 7f9d3b77d..053a67ad9 100644
--- a/100_core/src/gplx/Err.java
+++ b/100_core/src/gplx/Err.java
@@ -18,8 +18,8 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 package gplx;
 import gplx.core.errs.*;
 public class Err extends RuntimeException {
-	private final boolean is_gplx;
-	private final String trace;
+	private final    boolean is_gplx;
+	private final    String trace;
 	private Err_msg[] msgs_ary = new Err_msg[8]; private int msgs_len = 8, msgs_idx = 0;
 	public Err(boolean is_gplx, String trace, String type, String msg, Object... args) {
 		this.is_gplx = is_gplx;
diff --git a/100_core/src/gplx/String_.java b/100_core/src/gplx/String_.java
index 18c55e6bd..647bce63e 100644
--- a/100_core/src/gplx/String_.java
+++ b/100_core/src/gplx/String_.java
@@ -19,6 +19,17 @@ package gplx;
 import java.lang.*;
 import gplx.core.strings.*; import gplx.langs.gfs.*; import gplx.core.envs.*;
 public class String_ implements Gfo_invk {
+	public static int Len(String s)					{return s.length();}	
+	public static char CharAt(String s, int i)		{return s.charAt(i);}		
+	public static String new_u8(byte[] v, int bgn, int end) {
+		try {
+			return v == null
+				? null
+				: new String(v, bgn, end - bgn, "UTF-8");		
+		}
+		catch (Exception e) {Err_.Noop(e); throw Err_.new_("core", "unsupported encoding", "bgn", bgn, "end", end);}
+	}
+
 	public static final    Class<?> Cls_ref_type = String.class;
 	public static final String Cls_val_name = "str" + "ing";
 	public static final int Find_none = -1, Pos_neg1 = -1;
@@ -35,14 +46,6 @@ public class String_ implements Gfo_invk {
 		catch (Exception e) {throw Err_.new_exc(e, "core", "unsupported encoding");}
 	}	
 	public static String new_u8(byte[] v) {return v == null ? null : new_u8(v, 0, v.length);}
-	public static String new_u8(byte[] v, int bgn, int end) {
-		try {
-			return v == null
-				? null
-				: new String(v, bgn, end - bgn, "UTF-8");		
-		}
-		catch (Exception e) {Err_.Noop(e); throw Err_.new_("core", "unsupported encoding", "bgn", bgn, "end", end);}
-	}
 	public static String new_u8__by_len(byte[] v, int bgn, int len)	{
 		int v_len = v.length;
 		if (bgn + len > v_len) len = v_len - bgn;
@@ -68,7 +71,6 @@ public class String_ implements Gfo_invk {
 	}
 	public static boolean Len_gt_0(String s)									{return s != null && s.length() >  0;}	
 	public static boolean Len_eq_0(String s)									{return s == null || s.length() == 0;}	
-	public static int Len(String s)											{return s.length();}						
 	public static String Lower(String s)									{return s.toLowerCase();}					
 	public static String Upper(String s)									{return s.toUpperCase();}					
 	public static String CaseNormalize(boolean caseSensitive, String s)		{return caseSensitive ? s : String_.Lower(s);}
@@ -76,7 +78,6 @@ public class String_ implements Gfo_invk {
 	public static String Mid(String s, int bgn)								{return s.substring(bgn);}				
 	public static String Replace(String s, String find, String replace)		{return s.replace(find, replace);}		
 	public static char[] XtoCharAry(String s)								{return s.toCharArray();}				
-	public static char CharAt(String s, int i)								{return s.charAt(i);}							
 	public static int CodePointAt(String s, int i)							{return s.codePointAt(i);}
 	public static boolean Has(String s, String find)							{return s.indexOf(find) != String_.Find_none;}	
 	public static boolean Has_at_bgn(String s, String v)						{return s.startsWith(v);}				
diff --git a/400_xowa/src/gplx/xowa/Xoa_app_.java b/400_xowa/src/gplx/xowa/Xoa_app_.java
index aefea40a7..10e22bf3e 100644
--- a/400_xowa/src/gplx/xowa/Xoa_app_.java
+++ b/400_xowa/src/gplx/xowa/Xoa_app_.java
@@ -32,7 +32,7 @@ public class Xoa_app_ {
 		}
 	}
 	public static final String		Name			= "xowa";
-	public static final String		Version			= "3.11.2.7";
+	public static final String		Version			= "3.11.2.8";
 	public static String	Build_date		= "2012-12-30 00:00:00";
 	public static String	Op_sys_str;
 	public static String	User_agent		= "";
diff --git a/400_xowa/src/gplx/xowa/addons/wikis/ctgs/bldrs/Xob_catlink_wkr.java b/400_xowa/src/gplx/xowa/addons/wikis/ctgs/bldrs/Xob_catlink_wkr.java
index 1e48f470f..1b8e45b28 100644
--- a/400_xowa/src/gplx/xowa/addons/wikis/ctgs/bldrs/Xob_catlink_wkr.java
+++ b/400_xowa/src/gplx/xowa/addons/wikis/ctgs/bldrs/Xob_catlink_wkr.java
@@ -101,9 +101,10 @@ class Xob_catlink_wkr {
 		, ",       Sum(CASE WHEN tcl.cl_type_id = 1 THEN 1 ELSE 0 END)"
 		, ",       CASE WHEN h.cat_id IS NULL THEN 0 ELSE 1 END"
 		, ",       -1"
-		, "FROM    <temp_db>tmp_cat_link tcl"
-		, "        JOIN <page_db>page p ON p.page_namespace = 14 AND tcl.cl_to_ttl = p.page_title"
-		, "            LEFT JOIN <temp_db>tmp_cat_hidden h ON h.cat_id = p.page_id"
+		, "FROM    <page_db>page p"
+		, "        JOIN <temp_db>tmp_cat_link tcl ON tcl.cl_to_ttl = p.page_title"
+		, "        LEFT JOIN <temp_db>tmp_cat_hidden h ON h.cat_id = p.page_id"
+		, "WHERE   p.page_namespace = 14"
 		, "GROUP BY p.page_id"
 		);
 		attach_mgr.Exec_sql(sql);
diff --git a/400_xowa/src/gplx/xowa/addons/wikis/ctgs/dbs/Xodb_tmp_cat_link_tbl.java b/400_xowa/src/gplx/xowa/addons/wikis/ctgs/dbs/Xodb_tmp_cat_link_tbl.java
index 5275c12e9..2681542bc 100644
--- a/400_xowa/src/gplx/xowa/addons/wikis/ctgs/dbs/Xodb_tmp_cat_link_tbl.java
+++ b/400_xowa/src/gplx/xowa/addons/wikis/ctgs/dbs/Xodb_tmp_cat_link_tbl.java
@@ -53,7 +53,7 @@ public class Xodb_tmp_cat_link_tbl implements Db_tbl {
 	public void Create_idx__sortkey()	{conn.Meta_idx_create(Dbmeta_idx_itm.new_normal_by_tbl(tbl_name, fld_sortkey, fld_sortkey));}
 	public void Create_idx()	{
 		conn.Meta_idx_create(Dbmeta_idx_itm.new_normal_by_tbl(tbl_name, fld_from, fld_from));
-		conn.Meta_idx_create(Dbmeta_idx_itm.new_normal_by_tbl(tbl_name, fld_to_ttl, fld_to_ttl));
+		conn.Meta_idx_create(Dbmeta_idx_itm.new_normal_by_tbl(tbl_name, fld_to_ttl + "__" + fld_type_id, fld_to_ttl, fld_type_id));
 	}
 	public void Rls() {
 		stmt_insert = Db_stmt_.Rls(stmt_insert);