base.select_columns

Project a subset of columns from a table. Use mode: keep (default) to retain the listed columns, or mode: drop to remove them. Accepts CSV or Parquet input and emits Parquet output.

Kind: standard
Network: no

Inputs🔗

Name	Type	Description
`table`	file (Parquet, CSV accepted)	Source table.
`columns`	string	Comma-separated column names.
`mode`	string	Either `keep` (default) or `drop`.

Outputs🔗

Name	Type	Description
`result`	file (Parquet)	Projected table.

Example🔗

- id: 01890000-0000-0000-0000-000000000002
  name: base.select_columns
  inputs:
    - 01890000-0000-0000-0000-000000000001
  args:
    columns: "id,name,score"
    mode: "keep"