Hi, Some more details about data loss in MonetDB, I saw all that yours have commented, and also is aware that I am not with the latest version (update in ), but is a serious mistake in the previous version . Have a comment that said a data synchronization correction was made, has to do with the change or reorganization of data, even when it is only run queries? Will by defragmentation reasons (vacum PostgreSQL), or index creation, the data is changed / moved and in this case can be lost. The query for example is "select product from products where cod_product in (123,12434,33434)", only the data in this column (cod_product) were lost (went blank), and still only clinhas related codes on in. The only thing out of the ordinary has happened is that the ongoing connection was aborted, Pentaho was killed forced, aborting the connections, but the MonetDB service has stopped "stop MonetDB dw", which usually stopped, when start "moentdb start dw", rose correctly without errors, but took a long time to rise, very much, and then went to see the lost data. Att, -- Luciano Sasso Vieira Data Scientist & Solutions Architect luciano@gsgroup.com.br http://www.gsgroup.com.br | tel: 17 3353-0833 | cel: 17 99706-9335 www.gsgroup.com.br http://www.gsgroup.com.br --- Este email foi escaneado pelo Avast antivírus. http://www.avast.com