diff --git a/400_xowa/src/gplx/xowa/parsers/logs/Xop_log_basic_tbl.java b/400_xowa/src/gplx/xowa/parsers/logs/Xop_log_basic_tbl.java
index 73cacc6fe..d3419b75c 100644
--- a/400_xowa/src/gplx/xowa/parsers/logs/Xop_log_basic_tbl.java
+++ b/400_xowa/src/gplx/xowa/parsers/logs/Xop_log_basic_tbl.java
@@ -17,51 +17,45 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 package gplx.xowa.parsers.logs; import gplx.*; import gplx.xowa.*; import gplx.xowa.parsers.*;
 import gplx.dbs.*; import gplx.dbs.qrys.*; import gplx.dbs.engines.sqlite.*;
-public class Xop_log_basic_tbl implements Db_tbl {
+public class Xop_log_basic_tbl implements Db_tbl {		
+	public final    Dbmeta_fld_list flds = new Dbmeta_fld_list();
+	public final    String fld__log_id, fld__log_tid, fld__log_msg, fld__log_time, fld__page_id, fld__page_ttl, fld__args_len, fld__args_str, fld__src_len, fld__src_str;
 	private Db_stmt stmt_insert;
 	public Xop_log_basic_tbl(Db_conn conn){
 		this.conn = conn;
+		this.tbl_name				= "log_basic_temp";
+		this.fld__log_id			= flds.Add_int_pkey_autonum("log_id");
+		this.fld__log_tid			= flds.Add_int("log_tid");
+		this.fld__log_msg			= flds.Add_str("log_msg", 255);
+		this.fld__log_time			= flds.Add_int("log_time");
+		this.fld__page_id			= flds.Add_int("page_id");
+		this.fld__page_ttl			= flds.Add_str("page_ttl", 255);
+		this.fld__args_len			= flds.Add_int("args_len");
+		this.fld__args_str			= flds.Add_str("args_str", 4096);
+		this.fld__src_len			= flds.Add_int("src_len");
+		this.fld__src_str			= flds.Add_str("src_str", 4096);
+		conn.Rls_reg(this);
 		this.Create_tbl();
 	} 
-	public Db_conn Conn() {return conn;} private final    Db_conn conn; 
-	public String Tbl_name() {return TBL_NAME;}
-	public void Create_tbl()				{Sqlite_engine_.Tbl_create(conn, TBL_NAME, Tbl_sql);}
-	public void Delete()					{conn.Exec_qry(Db_qry_delete.new_all_(TBL_NAME));}
+	public Db_conn				Conn()			{return conn;} private final    Db_conn conn; 
+	public String				Tbl_name()		{return tbl_name;} private final    String tbl_name;
+	public void					Create_tbl()	{conn.Meta_tbl_create(Dbmeta_tbl_itm.New(tbl_name, flds));}
+	public void					Delete()		{conn.Exec_qry(Db_qry_delete.new_all_(tbl_name));}
 	public void Insert(int log_tid, String log_msg, int log_time, int page_id, String page_ttl, int args_len, String args_str, int src_len, String src_str) {
-		if (stmt_insert == null) stmt_insert = Db_stmt_.new_insert_(conn, TBL_NAME, Fld_log_tid, Fld_log_msg, Fld_log_time, Fld_page_id, Fld_page_ttl, Fld_args_len, Fld_args_str, Fld_src_len, Fld_src_str);
+		if (stmt_insert == null) stmt_insert = Db_stmt_.new_insert_(conn, tbl_name, fld__log_tid, fld__log_msg, fld__log_time, fld__page_id, fld__page_ttl, fld__args_len, fld__args_str, fld__src_len, fld__src_str);
 		stmt_insert.Clear()
-		.Val_int(log_tid)
-		.Val_str(log_msg)
-		.Val_int(log_time)
-		.Val_int(page_id)
-		.Val_str(page_ttl)
-		.Val_int(args_len)
-		.Val_str(args_str)
-		.Val_int(src_len)
-		.Val_str(src_str)
+		.Val_int(fld__log_tid, log_tid)
+		.Val_str(fld__log_msg, log_msg)
+		.Val_int(fld__log_time, log_time)
+		.Val_int(fld__page_id, page_id)
+		.Val_str(fld__page_ttl, page_ttl)
+		.Val_int(fld__args_len, args_len)
+		.Val_str(fld__args_str, args_str)
+		.Val_int(fld__src_len, src_len)
+		.Val_str(fld__src_str, src_str)
 		.Exec_insert();
 	}
 	public void Rls() {
-		stmt_insert.Rls();
+		stmt_insert = Db_stmt_.Rls(stmt_insert);
 	}
-	public static final String TBL_NAME = "log_basic_temp"
-	, Fld_log_tid = "log_tid", Fld_log_msg = "log_msg", Fld_log_time = "log_time"
-	, Fld_page_id = "page_id", Fld_page_ttl = "page_ttl"
-	, Fld_args_len = "args_len", Fld_args_str = "args_str"
-	, Fld_src_len = "src_len", Fld_src_str = "src_str"
-	;
-	private static final    String Tbl_sql = String_.Concat_lines_nl
-	(	"CREATE TABLE IF NOT EXISTS log_basic_temp"
-	,	"( log_id                   integer             NOT NULL    PRIMARY KEY AUTOINCREMENT"
-	,	", log_tid                  integer             NOT NULL"
-	,	", log_msg                  varchar(255)        NOT NULL"
-	,	", log_time                 integer             NOT NULL"
-	,	", page_id                  integer             NOT NULL"
-	,	", page_ttl                 varchar(255)        NOT NULL"
-	,	", args_len                 integer             NOT NULL"
-	,	", args_str                 varchar(4096)       NOT NULL"
-	,	", src_len                  integer             NOT NULL"
-	,	", src_str                  varchar(4096)       NOT NULL"
-	,	");"
-	);
 }
diff --git a/400_xowa/src/gplx/xowa/parsers/logs/Xop_log_mgr.java b/400_xowa/src/gplx/xowa/parsers/logs/Xop_log_mgr.java
index d725efc09..091255ac8 100644
--- a/400_xowa/src/gplx/xowa/parsers/logs/Xop_log_mgr.java
+++ b/400_xowa/src/gplx/xowa/parsers/logs/Xop_log_mgr.java
@@ -41,8 +41,10 @@ public class Xop_log_mgr implements Gfo_invk {
 	public Xop_log_invoke_wkr Make_wkr_invoke() {return new Xop_log_invoke_wkr(this.Conn());}
 	public Xop_log_property_wkr Make_wkr_property() {return new Xop_log_property_wkr(this.Conn());}
 	public Xop_log_basic_wkr Make_wkr() {
-		if (log_tbl == null)
+		if (log_tbl == null) {
 			log_tbl = new Xop_log_basic_tbl(this.Conn());
+			this.Conn().Meta_tbl_assert(log_tbl);
+		}
 		return new Xop_log_basic_wkr(log_tbl);
 	}
 	public void Commit_chk() {
diff --git a/400_xowa/src/gplx/xowa/parsers/logs/Xop_log_wkr_factory.java b/400_xowa/src/gplx/xowa/parsers/logs/Xop_log_wkr_factory.java
index 4f4b4614f..199454993 100644
--- a/400_xowa/src/gplx/xowa/parsers/logs/Xop_log_wkr_factory.java
+++ b/400_xowa/src/gplx/xowa/parsers/logs/Xop_log_wkr_factory.java
@@ -23,7 +23,10 @@ public class Xop_log_wkr_factory {
 	public Xop_log_invoke_wkr	Make__invoke()		{return new Xop_log_invoke_wkr(conn);}
 	public Xop_log_property_wkr Make__property()	{return new Xop_log_property_wkr(conn);}
 	public Xop_log_basic_wkr	Make__generic()		{
-		if (log_tbl == null) log_tbl = new Xop_log_basic_tbl(conn);
+		if (log_tbl == null) {
+			log_tbl = new Xop_log_basic_tbl(conn);
+			conn.Meta_tbl_assert(log_tbl);
+		}
 		return new Xop_log_basic_wkr(log_tbl);
 	}
 }
diff --git a/400_xowa/src/gplx/xowa/xtns/math/bldrs/Xomath_check_mgr.java b/400_xowa/src/gplx/xowa/xtns/math/bldrs/Xomath_check_mgr.java
index a86065180..790f43e7b 100644
--- a/400_xowa/src/gplx/xowa/xtns/math/bldrs/Xomath_check_mgr.java
+++ b/400_xowa/src/gplx/xowa/xtns/math/bldrs/Xomath_check_mgr.java
@@ -25,14 +25,15 @@ class Xomath_check_mgr {
 		// get db, conn, rdr
 		Xob_db_file log_db = Xob_db_file.New__file_make(wiki.Fsys_mgr().Root_dir());
 		Db_conn log_conn = log_db.Conn();
-		Db_rdr rdr = log_conn.Stmt_sql("SELECT * FROM " + Xop_log_basic_tbl.TBL_NAME).Exec_select__rls_auto();
+		Xop_log_basic_tbl log_tbl = new Xop_log_basic_tbl(log_conn);
+		Db_rdr rdr = log_conn.Stmt_select_all(log_tbl.Tbl_name(), log_tbl.flds).Exec_select__rls_auto();
 
 		// loop 
 		try {
 			while (rdr.Move_next()) {
 				// get page_id, src
-				int page_id = rdr.Read_int(Xop_log_basic_tbl.Fld_page_id);
-				byte[] src = rdr.Read_bry_by_str(Xop_log_basic_tbl.Fld_src_str);
+				int page_id = rdr.Read_int(log_tbl.fld__page_id);
+				byte[] src = rdr.Read_bry_by_str(log_tbl.fld__src_str);
 				count_total++;
 
 				src = Assert_flanking_math_ndes(page_id, src);