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Fix: #355 LTLのインデックスが適切にはられていない問題 (#356)

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KMY（雪あすか） 2023-12-13 09:13:35 +09:00 • committed by GitHub
parent f0a8bad941
commit 0dec7b450b
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3 changed files with 23 additions and 3 deletions
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db/migrate/20231212225737_improve_index_for_public_timeline_speed.rb Normal file
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# frozen_string_literal: true
class ImproveIndexForPublicTimelineSpeed < ActiveRecord::Migration[7.0]
disable_ddl_transaction!
def up
add_index :statuses, [:id, :account_id], name: :index_statuses_local_20231213, algorithm: :concurrently, order: { id: :desc }, where: '(local OR (uri IS NULL)) AND deleted_at IS NULL AND visibility IN (0, 10, 11) AND reblog_of_id IS NULL AND ((NOT reply) OR (in_reply_to_account_id = account_id))'
add_index :statuses, [:id, :account_id], name: :index_statuses_public_20231213, algorithm: :concurrently, order: { id: :desc }, where: 'deleted_at IS NULL AND visibility IN (0, 10, 11) AND reblog_of_id IS NULL AND ((NOT reply) OR (in_reply_to_account_id = account_id))'
remove_index :statuses, name: :index_statuses_local_20190824
remove_index :statuses, name: :index_statuses_public_20200119
end
def down
add_index :statuses, [:id, :account_id], name: :index_statuses_local_20190824, algorithm: :concurrently, order: { id: :desc }, where: '(local OR (uri IS NULL)) AND deleted_at IS NULL AND visibility = 0 AND reblog_of_id IS NULL AND ((NOT reply) OR (in_reply_to_account_id = account_id))'
add_index :statuses, [:id, :account_id], name: :index_statuses_public_20200119, algorithm: :concurrently, order: { id: :desc }, where: 'deleted_at IS NULL AND visibility = 0 AND reblog_of_id IS NULL AND ((NOT reply) OR (in_reply_to_account_id = account_id))'
remove_index :statuses, name: :index_statuses_local_20231213
remove_index :statuses, name: :index_statuses_public_20231213
end
end