OptionaljoinThe type of join (left outer or left inner).
OptionalleftField name from the left table.
OptionalleftThe left source. If the leftTableSource is a table, the resulting joinTable is a table. If the leftTableSource is a layer, the resulting joinTable is a layer.
OptionalrightField name from the right table.
OptionalrightThe right table source.
Type of the DataSource.
OptionalworkspaceThe unique string value used to identify the data-source's workspace.
Join Table data source is the result of a join operation. Nested joins are supported. To use nested joins, set either leftTableSource or rightTableSource to be a joinTable. See https://developers.arcgis.com/web-map-specification/objects/joinTableDataSource/ https://developers.arcgis.com/web-scene-specification/objects/joinTableDataSource/.