Add missing predicates tests

[danieljharvey]

What

Add any new predicates tests from ndc-postgres.

How

Copy pasta. Removed ilike and any regex-related one as we're not supporting that.

[danieljharvey]

Merge #68 first pls.

[danieljharvey]

Looks like the array relationship test is failing.

We need to change ... INNER JOIN WHERE (predicate) ON (true) to ...INNER JOIN ON (predicate) so the scoping still works. Vaguely remember doing this before actually.

[soupi]

@danieljharvey that's weird. I'd expect the inner join to use ON in the postgres version as well.

[danieljharvey]

@danieljharvey that's weird. I'd expect the inner join to use ON in the postgres version as well.

It's INNER JOIN LATERAL in ndc-postgres, so I guess that's why the scoping is happy there?