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.
Thank you for that confirmation. I had all cores firing on my copyManager box and it turned out it was really just looking really hardfor more byte to free up. I was getting a lot more out of the database than I could chew. OOM ensued.
