slick/slick — pull request #628 by szeiger (2014-01-27 13:38:07+00:00)
Title: Ensure that CountAll rewriting creates unique column names.

Not all databases allow duplicate column names (coming from multiple
views that are joined in a subquery), even if those names are never
referenced, as in the case of a CountAll aggregation. We now ensure
that an aggregation subquery produces a StructNode (which guarantees
unique names) even for a CountAll.

Fixes issue #175. Tests in CountTest.testJoin. Review by @cvogt