akkoma/priv/repo/migrations/20171109091239_add_actor_to_activity.exs
2017-11-09 12:33:38 +01:00

36 lines
815 B
Elixir

defmodule Pleroma.Repo.Migrations.AddActorToActivity do
use Ecto.Migration
alias Pleroma.{Repo, Activity}
@disable_ddl_transaction true
def up do
alter table(:activities) do
add :actor, :string
end
max = Repo.aggregate(Activity, :max, :id)
IO.puts("#{max} activities")
chunks = 0..(round(max / 10_000))
Enum.each(chunks, fn (i) ->
min = i * 10_000
max = min + 10_000
IO.puts("Updating #{min}")
execute """
update activities set actor = data->>'actor' where id > #{min} and id <= #{max};
"""
end)
create index(:activities, [:actor, "id DESC NULLS LAST"], concurrently: true)
end
def down do
drop index(:activities, [:actor, "id DESC NULLS LAST"])
alter table(:activities) do
remove :actor
end
end
end