Rails Ruby on Rails → 3.x

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• You flagged this item as spam.
  

  Nicolas Alejandro Santa May 26th, 2009 @ 01:56 AM

  Here is an explanation about what is happening.

  http://e-haitham.blogspot.com/2008/12/mysql-vs-postgresql-key-diffe...

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  Jeremy Kemper May 4th, 2010 @ 06:48 PM

  • Milestone changed from “2.x” to “3.x”

  [bulk edit]

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  Santiago Pastorino February 2nd, 2011 @ 04:50 PM

  • State changed from “new” to “open”
  • Tag changed from “2.3, activerecord, bug” to “23, activerecord, bug”

  This issue has been automatically marked as stale because it has not been commented on for at least three months.

  The resources of the Rails core team are limited, and so we are asking for your help. If you can still reproduce this error on the 3-0-stable branch or on master, please reply with all of the information you have about it and add "[state:open]" to your comment. This will reopen the ticket for review. Likewise, if you feel that this is a very important feature for Rails to include, please reply with your explanation so we can consider it.

  Thank you for all your contributions, and we hope you will understand this step to focus our efforts where they are most helpful.

• 

  Santiago Pastorino February 2nd, 2011 @ 04:50 PM

  • State changed from “open” to “stale”

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  Martin Caetano February 20th, 2011 @ 06:25 PM

  I'm having the same problem when deploying to Heroku.

  Query is:

  @conversations = Conversation.all(:conditions => ["user_id = ? or friend_id = ?", @conversation.user_id, @conversation.user_id], :group => "friend_id", :order => "created_at desc")

  And the error I get from console

  ActiveRecord::StatementInvalid (PGError: ERROR: column "conversations.id" must appear in the GROUP BY clause or be used in an aggregate function
  : SELECT "conversations".* FROM "conversations" WHERE (user_id = 1 or friend_id = 1) GROUP BY friend_id ORDER BY created_at desc):

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  Martin Caetano February 20th, 2011 @ 06:29 PM

  Here there's more info about how PosgreSQL handles group by

  http://stackoverflow.com/questions/4599010/heroku-postgresql-group-...

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