On Feb 2, 2006, at 2:13 PM, Michael Bayer wrote:
you want to set primary keys on a selectable ? selectables are supposed to very closely relate to SQL constructs. the mapper level is where you can define your not-quite-SQL constructs and how they map to your SQL constructs. since a SELECT statement in SQL doesnt have a primary key, im not sure its appropriate ?

maybe (or likely) i've misunderstood something.
my basic thoughts were:

1. mappers can be used to map against arbitrary
selects.
2. so i have some mapper factory functions which
take any selectable as arguments.
3. i expected that i could pass in "real" tables
or "abstract"/view-like selectables into my
factory functions transparently.

but maybe that's not the case? do my factory
functions need to be more aware of whether
they're getting a real table vs. an aliased
selectable?

thx,d



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