Function arrow::array::builder::make_builder
source ยท pub fn make_builder(
datatype: &DataType,
capacity: usize,
) -> Box<dyn ArrayBuilder>
Expand description
Returns a builder with capacity for capacity
elements of datatype
DataType
.
This function is useful to construct arrays from an arbitrary vectors with known/expected schema.
See comments on StructBuilder for retrieving collection builders built by make_builder.