优化商品导出的查询sql

jshERP-boot/src/main/resources/mapper_xml/MaterialMapperEx.xml

@@ -382,7 +382,7 @@
         left JOIN jsh_unit u on m.unit_id = u.id and ifnull(u.delete_Flag,'0') !='1'
         left JOIN jsh_material_category mc on m.category_id = mc.id and ifnull(mc.delete_Flag,'0') !='1'
         where 1=1
-        and (me.default_flag=1 or m.unit_id is null)
+        and (me.default_flag=1 or (me.sku is not null and me.sku!=''))
         <if test="materialParam != null and materialParam !=''">
             <bind name="bindKey" value="'%'+materialParam+'%'"/>
             and (me.bar_code like #{bindKey} or m.name like #{bindKey} or m.standard like #{bindKey} or m.model like #{bindKey})