+
+# stock_moves.visible field is obsolete
+# removing obsolete moves for writeoffs
+DELETE moves
+ FROM `0_stock_moves` moves
+ INNER JOIN (SELECT * FROM `0_stock_moves` WHERE `type`=11 AND `qty`<0) writeoffs ON writeoffs.`trans_no`=moves.`trans_no` AND writeoffs.`type`=11
+ WHERE moves.`type`=11;
+
+ALTER TABLE `0_stock_moves` DROP COLUMN `visible`;
+# stock_moves.discount_percent field are obsolete
+
+UPDATE `0_stock_moves` SET
+ price = price*(1-discount_percent);
+ALTER TABLE `0_stock_moves` DROP COLUMN `discount_percent`;
+
+ALTER TABLE `0_stock_moves` DROP COLUMN `person_id`;
+
+DROP TABLE IF EXISTS `0_movement_types`;