SuccessorModTime time.Time `msg:"smt"`

	Fresh bool `msg:"fr"` // indicates this is a first time call to write FileInfo.

	// Position of this version or object in a multi-object delete call,
	// no other caller must set this value other than multi-object delete call.
	// usage in other calls in undefined please avoid.
	Idx int `msg:"i"`

	// Combined checksum when object was uploaded.
	Checksum []byte `msg:"cs,allownil"`

			// if all versions were decommissioned, then we can delete the object versions.
			if decommissioned == len(fivs.Versions) {
				stopFn := globalDecommissionMetrics.log(decomMetricDecommissionRemoveObject, idx, bi.Name, entry.name)
				_, err := set.DeleteObject(ctx,
					bi.Name,
					encodeDirObject(entry.name),
					ObjectOptions{
						DeletePrefix:       true, // use prefix delete to delete all versions at once.

			return nil
		}
		return err
	}
	if inuse, err := d.InUse(ctx); err != nil {
		return err
	} else if inuse {
		return errTierBackendNotEmpty
	}
	config.Lock()
	delete(config.Tiers, tier)
	delete(config.drivercache, tier)
	config.Unlock()
	return nil
}

// Verify verifies if tier's config is valid by performing all supported
// operations on the corresponding warmbackend.

	psqlUpdateRow = `INSERT INTO %s (key, value) VALUES ($1, $2) ON CONFLICT (key) DO UPDATE SET value = EXCLUDED.value;`
	psqlDeleteRow = `DELETE FROM %s WHERE key = $1;`
	psqlInsertRow = `INSERT INTO %s (event_time, event_data) VALUES ($1, $2);`
)

// Postgres constants
const (
	PostgresFormat             = "format"

		if equals(k, xhttp.AmzMetaUnencryptedContentLength, xhttp.AmzMetaUnencryptedContentMD5) {
			toRemove = append(toRemove, k)
			continue
		}
	}

	for _, k := range toRemove {
		delete(m, k)
		delete(m, strings.ToLower(k))
	}

	return m
}

// generates an ListBucketVersions response for the said bucket with other enumerated options.

		} else {
			// Trimmed content encoding is empty when the header
			// value is set to "aws-chunked" only.

			// Make sure to delete the content-encoding parameter
			// for a streaming signature which is set to value
			// for example: "aws-chunked"
			delete(metadata, strings.ToLower(xhttp.ContentEncoding))
		}
	}

	// Success.
	return metadata, nil
}

		// remote object
		opts.SkipFreeVersion = true
	} else {
		transitionLogIf(ctx, err)
	}

	// Now, delete object from hot-tier namespace
	if _, err := objectAPI.DeleteObject(ctx, oi.Bucket, oi.Name, opts); err != nil {
		return err
	}

	// Send audit for the lifecycle delete operation
	defer auditLogLifecycle(ctx, *oi, ILMExpiry, tags, traceFn)

	eventName := event.ObjectRemovedDelete
	if oi.DeleteMarker {

			return
		}
		objInfo := fi.ToObjectInfo(o.Bucket, obj.name, versioned)
		if o.Lifecycle != nil {
			act := evalActionFromLifecycle(ctx, *o.Lifecycle, o.Retention, o.Replication.Config, objInfo).Action
			skip = act.Delete() && !act.DeleteRestored()
		}
	}

	fiv, err := obj.fileInfoVersions(o.Bucket)
	if err != nil {
		return
	}

	// Expire all versions if needed, if not attempt to queue for replication.

	return nil
}

// DeleteFileHandler - delete a file.
func (s *storageRESTServer) DeleteFileHandler(p *DeleteFileHandlerParams) (grid.NoPayload, *grid.RemoteErr) {
	if !s.checkID(p.DiskID) {
		return grid.NewNPErr(errDiskNotFound)
	}
	return grid.NewNPErr(s.getStorage().Delete(context.Background(), p.Volume, p.FilePath, p.Opts))
}

// DeleteVersionsErrsResp - collection of delete errors
// for bulk version deletes

	}
	err = st.Results(func(resp *ListDirResult) error {
		entries = resp.Entries
		return nil
	})
	return entries, toStorageErr(err)
}

// DeleteFile - deletes a file.
func (client *storageRESTClient) Delete(ctx context.Context, volume string, path string, deleteOpts DeleteOptions) error {
	_, err := storageDeleteFileRPC.Call(ctx, client.gridConn, &DeleteFileHandlerParams{
		DiskID:   *client.diskID.Load(),
		Volume:   volume,