Fix slow local timeline query (#11648)

Fix #11643
master
Eugen Rochko 5 years ago committed by GitHub
parent 4190e31626
commit aa6b5b42df
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GPG Key ID: 4AEE18F83AFDEB23
  1. 11
      db/migrate/20190823221802_add_local_index_to_statuses.rb
  2. 3
      db/schema.rb

@ -0,0 +1,11 @@
class AddLocalIndexToStatuses < ActiveRecord::Migration[5.2]
disable_ddl_transaction!
def up
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))'
end
def down
remove_index :statuses, name: :index_statuses_local_20190824
end
end

@ -10,7 +10,7 @@
# #
# It's strongly recommended that you check this file into your version control system. # It's strongly recommended that you check this file into your version control system.
ActiveRecord::Schema.define(version: 2019_08_20_003045) do ActiveRecord::Schema.define(version: 2019_08_23_221802) do
# These are extensions that must be enabled in order to support this database # These are extensions that must be enabled in order to support this database
enable_extension "plpgsql" enable_extension "plpgsql"
@ -646,6 +646,7 @@ ActiveRecord::Schema.define(version: 2019_08_20_003045) do
t.bigint "poll_id" t.bigint "poll_id"
t.datetime "deleted_at" t.datetime "deleted_at"
t.index ["account_id", "id", "visibility", "updated_at"], name: "index_statuses_20190820", order: { id: :desc }, where: "(deleted_at IS NULL)" t.index ["account_id", "id", "visibility", "updated_at"], name: "index_statuses_20190820", order: { id: :desc }, where: "(deleted_at IS 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 ["in_reply_to_account_id"], name: "index_statuses_on_in_reply_to_account_id" t.index ["in_reply_to_account_id"], name: "index_statuses_on_in_reply_to_account_id"
t.index ["in_reply_to_id"], name: "index_statuses_on_in_reply_to_id" t.index ["in_reply_to_id"], name: "index_statuses_on_in_reply_to_id"
t.index ["reblog_of_id", "account_id"], name: "index_statuses_on_reblog_of_id_and_account_id" t.index ["reblog_of_id", "account_id"], name: "index_statuses_on_reblog_of_id_and_account_id"

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