Struct DupRows 

pub struct DupRows<'a> {
    pub record_ids: &'a ArrayRef,
    pub entity_types: &'a ArrayRef,
    pub master_ids: &'a ArrayRef,
    pub master_idx: &'a [usize],
    pub is_identical: &'a [bool],
    pub first_record_idx: u64,
}

The duplicate copies generated from one BaseRows batch. Every copy’s master belongs to that same batch (pipeline.rs samples a batch’s duplicates exclusively from its own masters), which is what lets the whole batch be classified as soon as both are known.

Fields

record_ids: &'a ArrayRef

entity_types: &'a ArrayRef

master_ids: &'a ArrayRef

master_idx: &'a [usize]

Global master index of each copy, within base.first_master_idx..base.first_master_idx + base.len().

is_identical: &'a [bool]

true when the noise assigned to that copy ended up a no-op (see pipeline::unchanged_row_mask), false when it produced a real, visible change.

first_record_idx: u64