diff options
| -rw-r--r-- | db/migrate/20170610000000_add_statuses_index_on_account_id_id.rb | 13 | ||||
| -rw-r--r-- | db/schema.rb | 4 |
2 files changed, 15 insertions, 2 deletions
diff --git a/db/migrate/20170610000000_add_statuses_index_on_account_id_id.rb b/db/migrate/20170610000000_add_statuses_index_on_account_id_id.rb new file mode 100644 index 000000000..3e74346a8 --- /dev/null +++ b/db/migrate/20170610000000_add_statuses_index_on_account_id_id.rb @@ -0,0 +1,13 @@ +class AddStatusesIndexOnAccountIdId < ActiveRecord::Migration[5.1] + disable_ddl_transaction! + + def change + # Statuses queried by account_id are often sorted by id. Querying statuses + # of an account to show them in his status page is one of the most + # significant examples. + # Add this index to improve the performance in such cases. + add_index 'statuses', ['account_id', 'id'], algorithm: :concurrently, name: 'index_statuses_on_account_id_id' + + remove_index 'statuses', algorithm: :concurrently, column: 'account_id', name: 'index_statuses_on_account_id' + end +end diff --git a/db/schema.rb b/db/schema.rb index ba6c0e876..2f12c7308 100644 --- a/db/schema.rb +++ b/db/schema.rb @@ -10,7 +10,7 @@ # # It's strongly recommended that you check this file into your version control system. -ActiveRecord::Schema.define(version: 20170609145826) do +ActiveRecord::Schema.define(version: 20170610000000) do # These are extensions that must be enabled in order to support this database enable_extension "plpgsql" @@ -279,7 +279,7 @@ ActiveRecord::Schema.define(version: 20170609145826) do t.integer "reblogs_count", default: 0, null: false t.string "language" t.bigint "conversation_id" - t.index ["account_id"], name: "index_statuses_on_account_id" + t.index ["account_id", "id"], name: "index_statuses_on_account_id_id" t.index ["conversation_id"], name: "index_statuses_on_conversation_id" t.index ["in_reply_to_id"], name: "index_statuses_on_in_reply_to_id" t.index ["reblog_of_id"], name: "index_statuses_on_reblog_of_id" |