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Std.Column.appendNullU64

1 declaration

fn

appendNullU64: &Std.Column.ColumnU64 -> Option[Std.Column.ColumnU64]

This is a callable function.

What it does

Appends a null row to the column.

Leaves the validity bit as 0 and zeroes the underlying data slot.

Read the signature

  • The text after the name is the type checked by Pudu.
  • Read arrows from left to right: inputs come first, and the final type is returned.
  • & borrows a value for this call instead of moving or copying it.
  • Names inside [ ] are type arguments, such as the item type held by a collection.
  • Option holds Some(value) or None when no value is available.

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