Struct BlockStats 

pub struct BlockStats {
    pub min: f64,
    pub max: f64,
    pub null_count: u32,
    pub row_count: u32,
}

Per-block statistics for a single column. Enables predicate pushdown: skip blocks where WHERE price > 100 and block’s max_price < 100.

Fields

min: f64

Minimum value in this block (encoded as f64 for uniformity; i64 values are cast losslessly, strings use 0.0).

max: f64

Maximum value in this block.

null_count: u32

Number of null values in this block.

row_count: u32

Number of rows in this block (≤ BLOCK_SIZE, last block may be smaller).

Implementations

impl BlockStats

pub fn non_numeric(null_count: u32, row_count: u32) -> Self

Create stats for a block with no meaningful min/max (e.g., string columns).

Trait Implementations

impl Clone for BlockStats

fn clone(&self) -> BlockStats

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for BlockStats

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for BlockStats

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for BlockStats

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.