Rob Sargent wrote: > Can anyone here tell me whether or not the CopyManager facility in JDBC > via org.postgresql:postgresql:42.1.4 is internally multithreaded? > Running on CentOS 7 (all participants), java8, postgres 10.5 It isn't, and there would not be much reason for it to be, as COPY in PostgreSQL cannot be parallelized. Yours, Laurenz Albe -- Cybertec | https://www.cybertec-postgresql.com