Bug scanning Numeric in v1.14.1

[kydemy-fran]

I have a stored procedure that returns many columns and after the update.
Some of those columns are Numeric (both nullable and not nullable).

Before the update (using 1.14.0 all was good), but after update and release, we have had some complaints from some customers.

I am using:

github.com/jackc/pgtype v1.14.1
github.com/jackc/pgx/v4 v4.18.1

I've created some tests to see what was happening.
I am using the following struct:

type TestData struct {
	AccountID              int      `json:"account_id"`
	Amount                 float64  `json:"amount" kom:"`
	AmountBase             *float64 `json:"amount_base"`
	AmountVat              *float64 `json:"amount_vat"`
}

If I execute the following query directly in PostgreSQL 15.4:

SELECT account_id,amount,amount_base,amount_vat FROM payments.generate_remittances($1,$2);

The result is:

account_id	amount	amount_base	amount_vat
1230	50	50	0
1167	50	50	0
1715	25	25	0
1715	30	30	0

In v.1.14.1 all values for AccountID, AmountBase and AmountVat are correct. But some of the values scanned for Amount are wrong:

AccountID	Amount	AmountBase	AmountVAT
1230	5	50	0
1167	5	50	0
1715	25	25	0
1715	30	30	0

If I roll back to v1.14.0 the values are correct:

AccountID	Amount	AmountBase	AmountVAT
1230	50	50	0
1167	50	50	0
1715	25	25	0
1715	30	30	0

Let me know if you need further details.

I am going to rollback to v1.14.0, but it would be great if someone could take a look into this issue.
Thank you!

[jackc]

Let me know if you need further details.

Two things could help.

1. A test case that someone else could run.
2. You could bisect between v1.14.0 and v1.14.1. As far as I can tell there are only 2 commits that should have affected numeric support so it should be pretty trivial to determine which is the problem.

[kydemy-fran]

I've been trying to do a test without dependencies, and I am not able to replicate.
I am still able to replicate with my project/DB. I am unsure where the problem is.
I'll need to do your second suggestion and debug both versions. Will do sometime later this week.

[kydemy-fran]

Confirmed, this issue has been resolved in v1.14.2
Thank you!