PostgreSQL pgbench schema

pgbench-query.sql

\set aid random(1, 100000 * :scale)
\set bid random(1, 1 * :scale)
\set tid random(1, 10 * :scale)
\set delta random(-5000, 5000)
BEGIN;
UPDATE pgbench_accounts SET abalance = abalance + :delta WHERE aid = :aid;
SELECT abalance FROM pgbench_accounts WHERE aid = :aid;
UPDATE pgbench_tellers SET tbalance = tbalance + :delta WHERE tid = :tid;
UPDATE pgbench_branches SET bbalance = bbalance + :delta WHERE bid = :bid;
INSERT INTO pgbench_history (tid, bid, aid, delta, mtime) VALUES (:tid, :bid, :aid, :delta, CURRENT_TIMESTAMP);
END;

pgbench-schema.sql

CREATE TABLE pgbench_history (
    tid int,
    bid int,
    aid int,
    delta int,
    mtime timestamp,
    filler char(22)
);

CREATE TABLE pgbench_tellers (
    tid int NOT NULL,
    bid int,
    tbalance int,
    filler char(84)
)
WITH (
    fillfactor = 100
);

CREATE TABLE pgbench_accounts (
    aid int NOT NULL,
    bid int,
    abalance int,
    filler char(84)
)
WITH (
    fillfactor = 100
);

CREATE TABLE pgbench_branches (
    bid int NOT NULL,
    bbalance int,
    filler char(88)
)
WITH (
    fillfactor = 100
);

ALTER TABLE pgbench_branches
    ADD PRIMARY KEY (bid);

ALTER TABLE pgbench_tellers
    ADD PRIMARY KEY (tid);

ALTER TABLE pgbench_accounts
    ADD PRIMARY KEY (aid);