Postgres column type for embeds_many

Everywhere I’ve seen a blog post, etc. about making a column in postgres for an embeds_many, I see the same advice: use add :column, {:array, :map}, default: [] in the migration.

But this creates a postgres array of jsonb objects. This is not sensible to query on.

In my testing, I’ve found that simply using a :jsonb type for the column is sufficient and correct for everything embeds_many can do. It can leverage all the power of postgres’ jsonb type as well.

So here’s the question: If everyone is suggesting {:array, :map} and that seems to be inadequate for the purposes of doing standard database things, am I wrong for using :jsonb? Is there something about this that I’m overlooking?