func (api objectAPIHandlers) GetBucketLocationHandler(w http.ResponseWriter, r *http.Request) {
	ctx := newContext(r, w, "GetBucketLocation")

	defer logger.AuditLog(ctx, w, r, mustGetClaimsFromToken(r))

	vars := mux.Vars(r)
	bucket := vars["bucket"]

	objectAPI := api.ObjectAPI()
	if objectAPI == nil {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL)
		return
	}

	ctx := r.Context()

	objectAPI, _ := validateAdminReq(ctx, w, r, policy.ConfigUpdateAdminAction)
	if objectAPI == nil {
		return
	}

	vars := mux.Vars(r)

	subSys := vars["subSys"]
	key := vars["key"]

	_, envOnly := r.Form["env"]

	rd, err := GetHelp(subSys, key, envOnly)
	if err != nil {
		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
		return

	objectAPI := api.ObjectAPI()
	if objectAPI == nil {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL)
		return
	}

	vars := mux.Vars(r)
	bucket := vars["bucket"]
	object, err := unescapePath(vars["object"])
	if err != nil {
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
		return
	}

		constraint, table := m.GuessConstraintInterfaceAndTable(stmt, name)
		if constraint != nil {
			vars := []interface{}{clause.Table{Name: table}}
			if stmt.TableExpr != nil {
				vars[0] = stmt.TableExpr
			}
			sql, values := constraint.Build()
			return m.DB.Exec("ALTER TABLE ? ADD "+sql, append(vars, values...)...).Error
		}
		return nil
	})
}

// DropConstraint drop constraint

   */
  static final class TypeVariableKey {
    private final TypeVariable<?> var;

    TypeVariableKey(TypeVariable<?> var) {
      this.var = checkNotNull(var);
    }

    @Override
    public int hashCode() {
      return Objects.hashCode(var.getGenericDeclaration(), var.getName());
    }

    @Override
    public boolean equals(@CheckForNull Object obj) {

	ctx := newContext(r, w, "ListObjectVersions")

	defer logger.AuditLog(ctx, w, r, mustGetClaimsFromToken(r))

	vars := mux.Vars(r)
	bucket := vars["bucket"]

	objectAPI := api.ObjectAPI()
	if objectAPI == nil {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL)
		return
	}

// for a particular ARN type
func (a adminAPIHandlers) ListRemoteTargetsHandler(w http.ResponseWriter, r *http.Request) {
	ctx := r.Context()

	vars := mux.Vars(r)
	bucket := pathClean(vars["bucket"])
	arnType := vars["type"]

	// Get current object layer instance.
	objectAPI, _ := validateAdminReq(ctx, w, r, policy.GetBucketTargetAction)
	if objectAPI == nil {
		return
	}

		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrBadRequest), r.URL)
		return
	}

	vars := mux.Vars(r)
	bucket := vars["bucket"]
	object, err := unescapePath(vars["object"])
	if err != nil {
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
		return
	}

	opts, err := getOpts(ctx, r, bucket, object)
	if err != nil {

				}

				subdb.Statement.SQL.Reset()
				subdb.Statement.Vars = stmt.Vars
				if strings.Contains(sql, "@") {
					clause.NamedExpr{SQL: sql, Vars: vars}.Build(subdb.Statement)
				} else {
					clause.Expr{SQL: sql, Vars: vars}.Build(subdb.Statement)
				}
			} else {
				subdb.Statement.Vars = append(stmt.Vars, subdb.Statement.Vars...)
				subdb.callbacks.Query().Execute(subdb)
			}

					dest := db.Statement.Dest
					db.Statement.Dest = db.Statement.ReflectValue.Addr().Interface()
					gorm.Scan(rows, db, mode)
					db.Statement.Dest = dest
					db.AddError(rows.Close())
				}
			} else {
				result, err := db.Statement.ConnPool.ExecContext(db.Statement.Context, db.Statement.SQL.String(), db.Statement.Vars...)

				if db.AddError(err) == nil {