SQLC Override Bool Type PostgreSQL - postgresql

Question

I am using SQLC and my YAML config file contains the following type overrides for postgresql:
gen:
go:
emit_json_tags: true
package: "hmdb"
out: "hmdb"
overrides:
- db_type: "hstore"
nullable: true
go_type: "github.com/jackc/pgtype.Hstore"
- db_type: "text"
nullable: true
go_type:
import: "gopkg.in/guregu/null.v4"
package: "null"
type: "String"
- db_type: "timestamptz"
nullable: true
go_type:
import: "gopkg.in/guregu/null.v4"
package: "null"
type: "Time"
Everything here works, but if I add:
- db_type: "bool"
nullable: true
go_type:
import: "gopkg.in/guregu/null.v4"
package: "null"
type: "Bool"
I do not get the expected result. I have also tried boolean and bit to no avail, both with and without nullable.
I have an update query defined here:
-- name: SetUser :one
UPDATE users SET
username = coalesce(sqlc.narg(username), username),
email = coalesce(sqlc.narg('email'), email),
phone = coalesce(sqlc.narg('phone'), phone),
password = coalesce(sqlc.narg('password'), password),
mfatoken = coalesce(sqlc.narg('mfatoken'), mfatoken),
active = coalesce(sqlc.narg('active'), active)
WHERE id = $1 RETURNING *;
But the generated struct looks like:
type SetUserParams struct {
ID uuid.UUID `json:"id"`
Username null.String `json:"username"`
Email null.String `json:"email"`
Phone null.String `json:"phone"`
Password null.String `json:"password"`
MFAToken null.String `json:"mfatoken"`
Active sql.NullBool `json:"active"`
}
I want to use null.Bool instead of sql.NullBool, is this possible?

Answer 1

Create your schema.yaml like this:
CREATE TABLE users (
...
active pg_catalog.bool
)
In sqlc.yaml the entry should look something like this:
- db_type: "pg_catalog.bool"
nullable: true
go_type:
import: "gopkg.in/guregu/null.v4"
package: "null"
type: "Bool"
Then after sqlc generate it would look like this:
type SetUserParams struct {
...
Active null.Bool `json:"active"`
}
So it uses null.Bool instead of sql.NullBool.