[Sqlalchemy-tickets] Issue #3068: using conv() should be bypassing naming convention entirely (zzzeek/sqlalchemy)

[Mike B. <iss...@bi...>]

New issue 3068: using conv() should be bypassing naming convention entirely
https://bitbucket.org/zzzeek/sqlalchemy/issue/3068/using-conv-should-be-bypassing-naming

Mike Bayer:

this issue is mostly fixed by c33d0378802a with #3028 but that is a different issue being fixed here.  if conv() is present we shouldn't be hitting naming convention logic at all.  the below fails in 0.9.4 but succeeds in rel_0_9:


```
#!python

from sqlalchemy import UniqueConstraint, Table, MetaData
from sqlalchemy.sql.naming import conv

m = MetaData(naming_convention={"uq": "uq_%(table_name)s_%(column_0_name)s"})

t = Table('mytable', m)
uq = UniqueConstraint(name=conv('my_special_key'))

t.append_constraint(uq)
```