Q049error
Unusable go_type
A migration's go_type override names a type the generator cannot use.
db/migrations/0003_gulls.up.sql:5:34: error[Q049]: migration go_type override "example.com/gulls.identifier" for gulls.id is unusable: "identifier" is not exported, so the generated code cannot refer to it in "example.com/gulls"
Printed by sgl from a small PostgreSQL reproduction project.
When it is reported
The column keeps its inferred Go type.
How to fix it
Give go_type a full import path and type name, such as "github.com/google/uuid.UUID".
See it in an example
In your terminal
$ sgl explain Q049
Look for UnusableGoTypeOverride in Seagull's source to see where it is reported.