Hello Ji, normally this works, with some of my students i use this combination of pdi and pg, starting out with https://www.packtpub.com/product/pentaho-data-integration-quick-start-guide/9781789343328 (PDI 8, but the same applies with PDI 9) basically: reading/writing to plain pg from pdi should be ok in my experience Jiankang Ji schreef op do 25-11-2021 om 10:12 [+0100]: > Hi Team Experts, > > I am new on using pentaho data integration(PDI) on postgesql to set > up a ETL process to handle a time-series postgresql DB with data > collected from a IoT network. I've encountered a lot of problems when > set up this process from either the PDI tool or PostgreSQL or both. > So, if you are familiar to both PDI and PostgreSQL, please give a > hand. Thank you so much in advance for your assistance. > > Best regards, > Ji -- mvg, Wim Bertels