# `mix money.gen.postgres.sum_function`
[🔗](https://github.com/kipcole9/money_sql/blob/v2.0.0/lib/mix/tasks/money_gen_sum_function.ex#L2)

Generates a migration to add a sum aggregate function
to Postgres for the `money_with_currency` type.

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*Consult [api-reference.md](api-reference.md) for complete listing*