postgres

func Classify ¶

func Classify(err error) error

Classify converts known PostgreSQL SQLSTATEs to driver-neutral ORM errors.

When err is a PersistenceError, the persistence error remains outermost and the classified error replaces its cause. The resulting chain is therefore:

PersistenceError -> ConstraintError/TransientError -> safeCause -> PgError

This preserves operation and table context together with errors.Is/errors.As access to the native error. safeCause prevents PostgreSQL messages and detail fields, which may contain submitted values, from reaching Error output. Context errors, unknown errors, and nil pass through unchanged.