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PERF: Add index for (action_type,created_at) on user_actions` table.

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Speeds up counting of likes in `About#stats`.
This commit is contained in:
Guo Xiang Tan 2019-04-05 12:44:48 +08:00
parent 81a1bafe54
commit ca4c9abec7
1 changed files with 5 additions and 0 deletions
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db/migrate/20190405044140_add_index_action_type_created_at_on_user_actions.rb Normal file
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class AddIndexActionTypeCreatedAtOnUserActions < ActiveRecord::Migration[5.2]
def change
add_index :user_actions, [:action_type, :created_at]
end
end