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#4093 ✓stale
Ahmed ElDawy

Error dumping big decimal columns

Reported by Ahmed ElDawy | March 2nd, 2010 @ 07:59 PM

I'm using rails 2.3.5
ruby 1.8.6
mysql Ver 14.12 Distrib 5.0.75, for debian-linux-gnu (i486) using readline 5.2

When I run rake db:schema:dump while I have a column of this format
t.decimal :size, :limit=>63, :precision=>63, :scale=>0
It is dumped to be like this
t.integer "size", :limit => 63, :precision => 63, :scale => 0

This is incorrect because when I load this using rake db:schema:load, it's loaded as
int(11) ############ wrong
instead of
decimal(63,0) ########### correct

To replicate this bug create a new rails application with this migration

class CreateFiles < ActiveRecord::Migration
def self.up

create_table :files do |t|
  t.decimal :size, :limit=>63, :precision=>63, :scale=>0


def self.down

drop_table :files

end end

then do the following
rake db:drop db:create db:migrate db:schema:dump db:schema:load

correct behavior is
ActiveRecord::Base.connection.columns('files')[1].type == :decimal

incorrect behavior is
ActiveRecord::Base.connection.columns('files')[1].type == :integer

The error is with this method
You can find it on active_record/connection_adapters/abstract/schema_definitions.rb: 238

Thanks for your help

Comments and changes to this ticket

  • Marius Nuennerich

    Marius Nuennerich May 1st, 2010 @ 05:16 PM

    I guess this is a duplicate of Ticket #3554

  • Ahmed ElDawy

    Ahmed ElDawy May 2nd, 2010 @ 08:23 PM

    • no changes were found...
  • Santiago Pastorino

    Santiago Pastorino February 2nd, 2011 @ 04:34 PM

    • State changed from “new” to “open”

    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

    Santiago Pastorino February 2nd, 2011 @ 04:34 PM

    • State changed from “open” to “stale”

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