Re: pgbench - allow to create partitioned tables

Hello Amit,

> I think we might also need to use pg_get_partkeydef along with
> pg_partition_tree to fetch the partition method information. However,
> I think to find reloid of pgbench_accounts in the current search path,
> we might need to use some part of query constructed by Fabien.
>
> Fabien, what do you think about Alvaro's suggestion?

I think that the current straightforward SQL query is and works fine, and
I find it pretty elegant. No doubt other solutions could be implemented to
the same effect, with SQL or possibly through introspection functions.

Incidentally, ISTM that "pg_partition_tree" appears in v12, while
partitions exist in v11, so it would break uselessly backward
compatibility of the feature which currently work with v11, which I do not
find desirable.

Attached v18:
- remove the test tablespace
I had to work around a strange issue around partitioned tables and
the default tablespace.
- creates a separate function for setting scale, partitions and
partition_method

--
Fabien.