Hi there,
I am writing a custom dialect and sqlalchemy currently generates a
statement like this:
```
SELECT count(some_table.id) AS count_1, some_table.x + some_table.y AS lx
FROM some_table GROUP BY some_table.x + some_table.y ORDER BY lx
```
As you can see it uses the alias lx in ORDER BY but not in GROUP BY. Is
there any way to tell it to use the alias in GROUP BY instead of the raw
expression (my database doesn't seem to support those expressions in group
by)?
The test I am currently running against is test_group_by_composed from the
sqlalchemy test suite.
Also I needed to add:
```
@property # WTF
def broken_cx_oracle6_numerics(self):
return exclusions.closed()
```
and others to the requirements of my dialect to get the testsuite running
at all. Shouldn't sqlalchemy ship with sane default requirements (I mainly
followed
https://github.com/zzzeek/sqlalchemy/blob/master/README.dialects.rst )?
Thanks and best regards,
Florian
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