pgbench: extend variable usage in scripts

2026-04-03 01:50:05 Yugo Nagata (yugo.nagata) Moved from CF PG19-Final to CF PG20-1 2026-02-09 03:42:03 Yugo Nagata (yugo.nagata) Moved from CF PG19-4 to CF PG19-Final 2026-01-14 06:23:28 lakshmi g (lakshmi) Added lakshmi as reviewer 2026-01-09 12:02:24 CFbot Patch needs rebase 2025-12-23 07:01:07 Yugo Nagata (yugo.nagata) Moved from CF PG19-3 to CF PG19-4 2025-10-21 07:18:24 Michael Paquier (michael-kun) New status: Waiting on Author 2025-10-01 06:51:04 Yugo Nagata (yugo.nagata) Moved from CF PG19-2 to CF PG19-3 2025-08-29 07:26:57 Yugo Nagata (yugo.nagata) Attached mail thread 20250829162307.b2888293e1cf809668333395@sraoss.co.jp 2025-08-29 07:26:57 Yugo Nagata (yugo.nagata) Created patch record