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Fix account counters being overwritten by parallel writes (#12045)

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Eugen Rochko 2019-10-02 04:59:37 +02:00 • committed by GitHub
parent 9e3e3fa5ee
commit 62f60e86c2
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4 changed files with 92 additions and 1 deletions
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15
db/migrate/20191001213028_add_lock_version_to_account_stats.rb Normal file
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@ -0,0 +1,15 @@
require Rails.root.join('lib', 'mastodon', 'migration_helpers')
class AddLockVersionToAccountStats < ActiveRecord::Migration[5.2]
include Mastodon::MigrationHelpers
disable_ddl_transaction!
def up
safety_assured { add_column_with_default :account_stats, :lock_version, :integer, allow_null: false, default: 0 }
end
def down
remove_column :account_stats, :lock_version
end
end

3
db/schema.rb
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@ -10,7 +10,7 @@
#
# It's strongly recommended that you check this file into your version control system.
ActiveRecord::Schema.define(version: 2019_09_27_232842) do
ActiveRecord::Schema.define(version: 2019_10_01_213028) do
# These are extensions that must be enabled in order to support this database
enable_extension "plpgsql"
@ -97,6 +97,7 @@ ActiveRecord::Schema.define(version: 2019_09_27_232842) do
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.datetime "last_status_at"
t.integer "lock_version", default: 0, null: false
t.index ["account_id"], name: "index_account_stats_on_account_id", unique: true
end