Request for a preview of an upload to a Table.
|uploadFileHandleId||STRING||The ID of the file handle for a type of UPLOAD|
|linesToSkip||INTEGER||The number of lines to skip from the start of the file. The default value of 0 will be used if this is not provided by the caller.|
|csvTableDescriptor||CsvTableDescriptor||The description of a csv for upload or download.|
|doFullFileScan||BOOLEAN||When set to true the full file will be scanned for a schema suggestions. A full scan is more accurate but can take more time. When set to false only a sub-set of the first rows will be scanned, which can be faster but is less accurate. The default value is false.|