For the CREATE stuff, the script language is SQL, the command to use it is "psql"...The real and hard part is to fill tables with meaningful pseudo-random test data which do not violate constraints for any non trivial schema involving foreign keys and various unique constraints.The solution for this is SQL for trivial cases, think of: "INSERT INTO Foo() SELECT ... FROM generate_series(...);"Yeah. I was also thinking that complicated data-generation requirements could be handled with plpgsql DO blocks, avoiding the need for hard-wired code inside pgbench.
I do not thing that it is really be needed for what pgbench does, though. See attached attempt, including a no_foreign_keys option.
The only tricky thing is to have the elapsed/remaining advancement report on stdout, maybe with some PL/pgSQL.
Timings are very similar compared to "pgbench -i". -- Fabien.
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