mz_arrow_util::builder

Struct ArrowColumn

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struct ArrowColumn {
    field_name: String,
    nullable: bool,
    data_type: DataType,
    extension_type_name: String,
    inner: ColBuilder,
}

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§field_name: String§nullable: bool§data_type: DataType§extension_type_name: String§inner: ColBuilder

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impl ArrowColumn

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fn new( field_name: String, nullable: bool, data_type: DataType, extension_type_name: String, item_capacity: usize, data_capacity: usize, ) -> Result<Self, Error>

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impl ArrowColumn

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fn append_datum(&mut self, datum: Datum<'_>) -> Result<(), Error>

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impl ArrayBuilder for ArrowColumn

Implement the ArrayBuilder trait for ArrowColumn so that we can use an ArrowColumn as an inner-builder type in an arrow::array::builder::GenericListBuilder and an arrow::array::builder::StructBuilder and re-use our methods for appending data to the column.

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fn len(&self) -> usize

Returns the number of array slots in the builder
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fn finish(&mut self) -> ArrayRef

Builds the array
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fn finish_cloned(&self) -> ArrayRef

Builds the array without resetting the underlying builder.
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fn as_any(&self) -> &(dyn Any + 'static)

Returns the builder as a non-mutable Any reference. Read more
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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Returns the builder as a mutable Any reference. Read more
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fn into_box_any(self: Box<Self>) -> Box<dyn Any>

Returns the boxed builder as a box of Any.
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fn is_empty(&self) -> bool

Returns whether number of array slots is zero
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impl Debug for ArrowColumn

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

Formats the value using the given formatter. Read more
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impl From<&ArrowColumn> for Field

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fn from(col: &ArrowColumn) -> Self

Converts to this type from the input type.

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
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impl<T, U> CastInto<U> for T
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const ALIGN: usize = _

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type Init = T

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unsafe fn init(init: <T as Pointable>::Init) -> usize

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fn plus_equals(&mut self, rhs: &&'a S)

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