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

About 2x speed-up on inboxes query
2020-12-07 12:08:30 +01:00
parent a8c471fcc0
commit 48bef17cc9
4 changed files with 4 additions and 4 deletions
--- a/app/models/form/account_batch.rb
+++ b/app/models/form/account_batch.rb
@ -51,7 +51,7 @@ class Form::AccountBatch
  end

  def account_domains
-    accounts.pluck(Arel.sql('distinct domain')).compact
+    accounts.group(:domain).pluck(:domain).compact
  end

  def accounts