Fix slow distinct queries where grouped queries are faster (#15287)

About 2x speed-up on inboxes query
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Eugen Rochko 2020-12-07 12:08:30 +01:00 committed by GitHub
parent a8c471fcc0
commit 48bef17cc9
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4 changed files with 4 additions and 4 deletions

View file

@ -81,7 +81,7 @@ class AccountsController < ApplicationController
end end
def account_media_status_ids def account_media_status_ids
@account.media_attachments.attached.reorder(nil).select(:status_id).distinct @account.media_attachments.attached.reorder(nil).select(:status_id).group(:status_id)
end end
def no_replies_scope def no_replies_scope

View file

@ -14,7 +14,7 @@ module Admin
@statuses = @account.statuses.where(visibility: [:public, :unlisted]) @statuses = @account.statuses.where(visibility: [:public, :unlisted])
if params[:media] if params[:media]
account_media_status_ids = @account.media_attachments.attached.reorder(nil).select(:status_id).distinct account_media_status_ids = @account.media_attachments.attached.reorder(nil).select(:status_id).group(:status_id)
@statuses.merge!(Status.where(id: account_media_status_ids)) @statuses.merge!(Status.where(id: account_media_status_ids))
end end

View file

@ -443,7 +443,7 @@ class Account < ApplicationRecord
end end
def inboxes def inboxes
urls = reorder(nil).where(protocol: :activitypub).pluck(Arel.sql("distinct coalesce(nullif(accounts.shared_inbox_url, ''), accounts.inbox_url)")) urls = reorder(nil).where(protocol: :activitypub).group(:preferred_inbox_url).pluck(Arel.sql("coalesce(nullif(accounts.shared_inbox_url, ''), accounts.inbox_url) AS preferred_inbox_url"))
DeliveryFailureTracker.without_unavailable(urls) DeliveryFailureTracker.without_unavailable(urls)
end end

View file

@ -51,7 +51,7 @@ class Form::AccountBatch
end end
def account_domains def account_domains
accounts.pluck(Arel.sql('distinct domain')).compact accounts.group(:domain).pluck(:domain).compact
end end
def accounts def accounts