Function slice_batch_by_vnode 

pub fn slice_batch_by_vnode(
    batch: &RecordBatch,
    row_vnodes: &[u32],
    target: u32,
) -> Option<RecordBatch>

The sub-batch of batch whose row_vnodes[i] == target, or None if no row maps to target.

Panics

Panics if the take or rebuild fails — only on an internal-invariant violation (the indices are derived from batch itself).