v1.0.320

Full Changelog: v1.0.301...v1.0.320

1. Added sum of items, see below.
2. Projection with filter fixed.
3. Sql transformer rewritten to improve speed.
4. Added transaction save points.
5. likeAny query improved for Postgres.
6. Added text length function like Sql.text.length(.)
7. Added updateSelect
8. Improved SaveChanges with directly generated queries instead of query expressions

Sql.coll.sum( (x) => x.products
      .map((p) => ({
         total: 1,
         paid: p.orders
               .filter((o) => o.status === "paid")
               .some((o) => true) ? 1 : 0
      }) )

This way you can get count of all orders and paid ones in a single call.