akkoma/priv/repo/optional_migrations/rum_indexing/20190510135645_add_fts_inde...

52 lines
1.4 KiB
Elixir

defmodule Pleroma.Repo.Migrations.AddFtsIndexToObjectsTwo do
use Ecto.Migration
def up do
execute("create extension if not exists rum")
drop_if_exists(
index(:objects, ["(to_tsvector('english', data->>'content'))"],
using: :gin,
name: :objects_fts
)
)
alter table(:objects) do
add(:fts_content, :tsvector)
end
execute("CREATE FUNCTION objects_fts_update() RETURNS trigger AS $$
begin
new.fts_content := to_tsvector('english', new.data->>'content');
return new;
end
$$ LANGUAGE plpgsql")
execute(
"create index if not exists objects_fts on objects using RUM (fts_content rum_tsvector_addon_ops, inserted_at) with (attach = 'inserted_at', to = 'fts_content');"
)
execute("CREATE TRIGGER tsvectorupdate BEFORE INSERT OR UPDATE ON objects
FOR EACH ROW EXECUTE PROCEDURE objects_fts_update()")
execute("UPDATE objects SET updated_at = NOW()")
end
def down do
execute("drop index if exists objects_fts")
execute("drop trigger if exists tsvectorupdate on objects")
execute("drop function if exists objects_fts_update()")
alter table(:objects) do
remove(:fts_content, :tsvector)
end
create_if_not_exists(
index(:objects, ["(to_tsvector('english', data->>'content'))"],
using: :gin,
name: :objects_fts
)
)
end
end