Project

Supported in: Batch, Streaming

Transforms input dataset either by selecting columns or applying functions to columns.

Transform categories: Other

Declared arguments

• Columns - List of column transformations to apply to the dataset.
  List<Expression<AnyType>>
• Dataset - Dataset to apply operations to.
  Table
• Keep remaining columns - Keeps all columns not projected in the dataset.
  Literal<Boolean>

Examples

Example 1: Base case

Argument values:

• Columns: [
  alias(
   alias: airline,
   expression: airlin,
  )]
• Dataset: ri.foundry.main.dataset.a
• Keep remaining columns: false

Input:

Output:

---