Re: [Sqlalchemy-tickets] [sqlalchemy] #2150: backport distinct(*expr) to 0.6

[sqlalchemy <mi...@zz...>]

#2150: backport distinct(*expr) to 0.6
-------------------------+--------------------------------------------------
 Reporter:  guest        |          Owner:  zzzeek              
     Type:  enhancement  |         Status:  new                 
 Priority:  medium       |      Milestone:  0.6.xx              
Component:  sql          |       Severity:  minor - half an hour
 Keywords:  distinct     |   Status_field:  needs review        
-------------------------+--------------------------------------------------
Changes (by zzzeek):

  * keywords:  => distinct
  * component:  postgres => sql
  * severity:  no triage selected yet => minor - half an hour
  * status_field:  awaiting triage => needs review


Comment:

 this is the actual patch:  ra7f581395db1

 its in 0.7 because it deprecates several features, and greatly reorganizes
 how "distinct" is handled at all levels.

 the patch above includes:

  * documentation
  * deprecation for MySQL's old style
  * deprecation for passing a basestring to select(distinct='xyz')
  * fixes to the logic used in compiler.py
  * fixes to PG's logic
  * tests for the feature, PGs behavior, MySQLs behavior

 im not yet convinced 0.6 really needs a new feature backport of this size
 - 0.7.0 is due very soon.

-- 
Ticket URL: <http://www.sqlalchemy.org/trac/ticket/2150#comment:1>
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