> c=16;psql -c 'DROP TABLE IF EXISTS copytest_0; CREATE TABLE copytest_0(data text not null);' && time /srv/dev/build/m-opt/src/bin/pgbench/pgbench -n -P1 -c$c -j$c -t$((1024/$c)) -f ~/tmp/copy.sql && psql -c 'TRUNCATE copytest_0'
> >[1] COPY (SELECT repeat(random()::text, 5) FROM generate_series(1, 100000)) TO '/tmp/copytest_data_text.copy' WITH (FORMAT test); > >[2] COPY (SELECT repeat(random()::text, 5) FROM generate_series(1, 6*100000)) TO '/tmp/copytest_data_text.copy' WITH (FORMAT text);
When I ran this script it did not insert anything into the copytest_0 table. It only generated a singlecopytest_data_text.copy file of size 9.236MB.
Please help me understand how is this 'pgbench running COPY into a single table'. Also what are the 'seconds' and 'tbl-MBs' metrics that were reported.