date_scanned date not null,
barcode varchar(20) not null,
source_id varchar(20) not null,
+ timestamp datetime default now(),
unique key ffzg_inventura_unique (barcode,date_scanned,source_id)
-);
+) DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci ;
+-- this collate has to be same as barcode in items check it with:
+-- show create table items