结构体 DispatchLookupTable 

struct DispatchLookupTable {
    to_reader: Box<[i8]>,
    promotion: Box<[Promotion]>,
}

字段

to_reader: Box<[i8]>

promotion: Box<[Promotion]>

实现

impl DispatchLookupTable

fn from_writer_to_reader( promotion_map: &[Option<(usize, Promotion)>], ) -> Result<Self, ArrowError>

fn resolve(&self, writer_index: usize) -> Option<(usize, Promotion)>

Trait 实现

impl Debug for DispatchLookupTable

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

使用给定的格式化程序格式化值。 阅读更多