Commit a3ac1e30 authored by Lukas Matt's avatar Lukas Matt Committed by Dennis Schubert
Browse files

account_deletions get stuck while selecting participations 



Following query takes over 20 minutes and fills up the database:
SELECT * FROM participations WHERE author_id = XXXXX

On servers with a huge participations-table this is a serious
performance issue which is easily fixed by the author_id index

Signed-off-by: default avatarLukas Matt <lukas@zauberstuhl.de>
parent 46176290

Changelog.md

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@@ -2,6 +2,7 @@ 


## Refactor

* Sort tag autocompletion by tag name [#6734](https://github.com/diaspora/diaspora/pull/6734)

* Make account deletions faster by adding an index [#6771](https://github.com/diaspora/diaspora/pull/6771)



## Bug fixes

* Fix empty name field when editing aspect names [#6706](https://github.com/diaspora/diaspora/pull/6706)

db/migrate/20160327103605_add_author_id_index_to_participations.rb

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class AddAuthorIdIndexToParticipations < ActiveRecord::Migration

  def change

    add_index :participations, :author_id, :using => :btree

  end

end

db/schema.rb

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@@ -11,7 +11,7 @@ 
#

# It's strongly recommended that you check this file into your version control system.



ActiveRecord::Schema.define(version: 20150724152052) do

ActiveRecord::Schema.define(version: 20160327103605) do



  create_table "account_deletions", force: :cascade do |t|

    t.string   "diaspora_handle", limit: 255
@@ -262,6 +262,7 @@ ActiveRecord::Schema.define(version: 20150724152052) do 
    t.datetime "updated_at",                            null: false

  end



  add_index "participations", ["author_id"], name: "index_participations_on_author_id", using: :btree

  add_index "participations", ["guid"], name: "index_participations_on_guid", length: {"guid"=>191}, using: :btree

  add_index "participations", ["target_id", "target_type", "author_id"], name: "index_participations_on_target_id_and_target_type_and_author_id", using: :btree