Required property to indicate which columns should be included in the table data.
Optional previewOptional preview instructions for columns in the table data.
Optional updateMinimum interval between updates, in milliseconds. If not specified, the server default will be used, typically 1000ms.
Note that setting this to smaller values will not necessarily result in more frequent updates - the server may not propagate updates that frequently, or there may be no updates to propagate.
Options for requesting a full-table subscription to a table.