ColumnsByName / Select Layer

Select columns by their exact names. Similar to pandas loc[] or dplyr select(). Essential for:

  • Explicit column selection
  • Data extraction by field names
  • Report generation
  • API response formatting
  • Database query results
Table
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Table

Select

[column, ...]

List of column names to select. Names must match exactly. Non-existent column names will cause an error. Order of selection matches the order specified.