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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 (#357)

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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

* Migrate
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KMY（雪あすか） 2023-12-13 09:13:32 +09:00 • committed by GitHub
parent 5173481ab7
commit 04485adcfb
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3 changed files with 24 additions and 5 deletions
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4
app/models/preview_cards_status.rb
View file

@ -4,8 +4,8 @@
#
# Table name: preview_cards_statuses
#
# preview_card_id :bigint(8) not null
# status_id :bigint(8) not null
# preview_card_id :bigint(8) not null, primary key
# status_id :bigint(8) not null, primary key
# url :string
#
class PreviewCardsStatus < ApplicationRecord

19
db/migrate/20231212225737_improve_index_for_public_timeline_speed.rb Normal file
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@ -0,0 +1,19 @@
# 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

6
db/schema.rb
View file

@ -10,7 +10,7 @@
#
# It's strongly recommended that you check this file into your version control system.
ActiveRecord::Schema[7.1].define(version: 2023_11_30_083634) do
ActiveRecord::Schema[7.1].define(version: 2023_12_12_225737) do
# These are extensions that must be enabled in order to support this database
enable_extension "plpgsql"
@ -1240,8 +1240,8 @@ ActiveRecord::Schema[7.1].define(version: 2023_11_30_083634) do
t.index ["account_id"], name: "index_statuses_on_account_id"
t.index ["conversation_id"], name: "index_statuses_on_conversation_id"
t.index ["deleted_at"], name: "index_statuses_on_deleted_at", where: "(deleted_at IS NOT NULL)"
t.index ["id", "account_id"], name: "index_statuses_local_20190824", 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)))"
t.index ["id", "account_id"], name: "index_statuses_public_20200119", 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)))"
t.index ["id", "account_id"], name: "index_statuses_local_20231213", order: { id: :desc }, where: "((local OR (uri IS NULL)) AND (deleted_at IS NULL) AND (visibility = ANY (ARRAY[0, 10, 11])) AND (reblog_of_id IS NULL) AND ((NOT reply) OR (in_reply_to_account_id = account_id)))"
t.index ["id", "account_id"], name: "index_statuses_public_20231213", order: { id: :desc }, where: "((deleted_at IS NULL) AND (visibility = ANY (ARRAY[0, 10, 11])) AND (reblog_of_id IS NULL) AND ((NOT reply) OR (in_reply_to_account_id = account_id)))"
t.index ["in_reply_to_account_id"], name: "index_statuses_on_in_reply_to_account_id", where: "(in_reply_to_account_id IS NOT NULL)"
t.index ["in_reply_to_id"], name: "index_statuses_on_in_reply_to_id", where: "(in_reply_to_id IS NOT NULL)"
t.index ["quote_of_id", "account_id"], name: "index_statuses_on_quote_of_id_and_account_id"