Rename: .update() -> updateAll() when it can affect multiple rows

[jonasfj]

Interested in your thoughts.

This will make it so that:

• QuerySingle<T> has .update (as is right now)
• Query<T> has .updateAll (instead of it being named .update).

The idea is that this will it slightly more likely that someone will notice something concerning when write:

await db.myTable.updateAll(...).execute();

instead of:

await db.myTable.byKey(...).update(...).execute();

Granted you'll now also have to write .updateAll if you have a .where clause.

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IMO, it's a bit ugly, and All is a bit inappropriate, because it really means update multiple.

I think perhaps we should stick with .update() in both cases, and accept that SQL has sharp edges if you update a table with a WHERE clause :D