\set nbranches 1 \set ntellers 10 \set naccounts 100000 \setgaussian aid 1 70000 10 \setrandom bid 1 :nbranches \setrandom tid 1 :ntellers \setrandom delta -5000 5000 BEGIN; SELECT abalance FROM pgbench_accounts WHERE aid = :aid; INSERT INTO pgbench_history (tid, bid, aid, delta, mtime) VALUES (:tid, :bid, :aid, :delta, CURRENT_TIMESTAMP); END;