Values_1.ProjectOperationSourceA transform operation that projects columns. Operations that come after a projection can only refer to projected columns.
type nonrec t = {alias : Values_0.TransformOperationAlias.t option;Alias for this operation.
*)source : Values_0.TransformOperationSource.t option;The source transform operation that provides input data for column projection.
*)projectedColumns : ProjectedColumnNameList.t;Projected columns.
*)}val make :
?alias:??? ->
?source:??? ->
projectedColumns:ProjectedColumnNameList.t ->
unit ->
tval to_value :
t ->
[> `Structure of
(string
* [> `List of [> `String of Values_0.String_.t ] list
| `String of Values_0.TransformOperationAlias.t
| `Structure of
(string
* [> `List of
[> `Structure of (string * [> `String of string ]) list ]
list
| `String of string ])
list ])
list ]