ActiveRecord partitioning

This gem enables ActiveRecord to understand partitioned tables in its schema. At the moment this support is limited to MySQL and, specifically, the mysql2 connection adapter. And, yes, this is very very alpha quality!

Install with:

gem 'activerecord-partitioning', git: 'https://github.com/growkudos/activerecord-partitioning', tag: '0.0.5'

Usage:

class PartitionMyTable < ActiveRecord::Migration
  def up
    partition_table('my_table', 'PARTITION BY HASH(id)')
  end

  def down
    raise ActiveRecord::IrreversibleMigration, "Can't undo partitioning at the moment!")
  end
end

The second parameter to partition_table is simply the MySQL partition statement at the moment, as that's all I needed.

Note that rake db:schema:dump will output the partition_table call for you.

Feel free to fork and submit pull requests.

Update

• 2016-03 (Martyn Whitwell): updated to support Active Record 4 and support pseudo-composite primary keys.
• 2017-02 (Ryan Brooks): updated to support Active Record 5.