Struct DictionaryArrowToVariantBuilder 

pub(crate) struct DictionaryArrowToVariantBuilder<'a> {
    keys: &'a dyn Array,
    normalized_keys: Vec<usize>,
    values_builder: Box<ArrowToVariantRowBuilder<'a>>,
}

Dictionary array builder with simple O(1) indexing

Fields

keys: &'a dyn Array

normalized_keys: Vec<usize>

values_builder: Box<ArrowToVariantRowBuilder<'a>>

Implementations

impl<'a> DictionaryArrowToVariantBuilder<'a>

pub(crate) fn new( array: &'a dyn Array, options: &'a CastOptions, ) -> Result<Self, ArrowError>

fn append_row( &mut self, builder: &mut impl VariantBuilderExt, index: usize, ) -> Result<(), ArrowError>