pub fn vec_to_columnar<'scope, T>(
collection: VecCollection<'scope, T, Row, Diff>,
) -> Collection<'scope, T, Column<(Row, T, Diff)>>where
T: RenderTimestamp,Expand description
Repacks a row-based collection into columnar batches.
The leaf encode described in the module docs, named VecToColumnar in a rendered
dataflow. Repacking copies row bytes and allocates no per-record Row.