On 24/10/2018 11:54, ZongtianHou wrote: > Thank you for the quick reply, I changed the source code, and installed again. But I still can not have the additional column I added after restart, unless initializing the database. But I don’t want to initialize it in product environment which will drop all the data, it there any other method to do it, like some SQL query? no -- Peter Eisentraut http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services