ColAt

typed_arrow::schema

Trait ColAt 

Source 
pub trait ColAt<const I: usize>: Record {
    type Native;
    type ColumnArray: Array;
    type ColumnBuilder: ArrayBuilder;

    const NULLABLE: bool;
    const NAME: &'static str;

    // Required method
    fn data_type() -> DataType;
}
Expand description

Per-column metadata for a record at index I.

Required Associated Constants§

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const NULLABLE: bool

Whether this column is nullable.

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const NAME: &'static str

Column name.

Required Associated Types§

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type Native

The Native value type of this column (without nullability).

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type ColumnArray: Array

The typed Arrow array for this column.

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type ColumnBuilder: ArrayBuilder

The typed Arrow builder for this column.

Required Methods§

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fn data_type() -> DataType

Arrow-rs DataType for this column.

Dyn Compatibility§

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors§