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DistinctState

linkrs_query::executor::streaming::operators::blocking::materialize

Struct DistinctState 

Source 
pub struct DistinctState {
    pub seen_rows: HashSet<RowKey>,
    pub key_cols: Vec<usize>,
    pub batch: MaterializedBatch,
    pub emitted_offset: usize,
    pub col_names: Vec<String>,
    pub input_layout: Option<Arc<SlotLayout>>,
    pub partition_spiller: Option<HashPartitionSpiller>,
    pub spilled_runs: Vec<Option<SpilledRun>>,
    pub current_partition: usize,
    pub partition_seen: HashSet<RowKey>,
    pub has_spilled: bool,
}

Fields§

§seen_rows: HashSet<RowKey>

Dedup keys: the key-column projection of each unique row. Empty key_cols means the full row, preserving the exact Value Hash/Eq contract (Null, NaN, mixed kinds) of the former HashSet<Vec<Value>>.

§key_cols: Vec<usize>

Key column positions. Empty selects the full row. Reserved for future keyed distinct pushdown; no producer sets it yet.

§batch: MaterializedBatch

Output buffer built once from drained keys at emission time, so the outlet serves batch slices instead of a drained row iterator.

§emitted_offset: usize

Output cursor into batch.

§col_names: Vec<String>§input_layout: Option<Arc<SlotLayout>>§partition_spiller: Option<HashPartitionSpiller>§spilled_runs: Vec<Option<SpilledRun>>§current_partition: usize§partition_seen: HashSet<RowKey>§has_spilled: bool

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impl Debug for DistinctState

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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