feat(database): implement sql adapter for backwards compatibility

backend/v3/storage/database/dialect/sql/error.go

@@ -0,0 +1,41 @@
+package sql
+
+import (
+	"database/sql"
+	"errors"
+
+	"github.com/jackc/pgx/v5"
+	"github.com/jackc/pgx/v5/pgconn"
+
+	"github.com/zitadel/zitadel/backend/v3/storage/database"
+)
+
+var ErrMigrate = errors.New("sql does not support migrations, use a different dialect")
+
+func wrapError(err error) error {
+	if err == nil {
+		return nil
+	}
+	if errors.Is(err, pgx.ErrNoRows) || errors.Is(err, sql.ErrNoRows) {
+		return database.NewNoRowFoundError(err)
+	}
+	var pgxErr *pgconn.PgError
+	if !errors.As(err, &pgxErr) {
+		return database.NewUnknownError(err)
+	}
+	switch pgxErr.Code {
+	// 23514: check_violation - A value violates a CHECK constraint.
+	case "23514":
+		return database.NewCheckError(pgxErr.TableName, pgxErr.ConstraintName, pgxErr)
+	// 23505: unique_violation - A value violates a UNIQUE constraint.
+	case "23505":
+		return database.NewUniqueError(pgxErr.TableName, pgxErr.ConstraintName, pgxErr)
+	// 23503: foreign_key_violation - A value violates a foreign key constraint.
+	case "23503":
+		return database.NewForeignKeyError(pgxErr.TableName, pgxErr.ConstraintName, pgxErr)
+	// 23502: not_null_violation - A value violates a NOT NULL constraint.
+	case "23502":
+		return database.NewNotNullError(pgxErr.TableName, pgxErr.ConstraintName, pgxErr)
+	}
+	return database.NewUnknownError(err)
+}