Struct PartitionSpecBuilder Copy item path

impl PartitionSpecBuilder

pub fn new(schema: impl Into<SchemaRef>) -> Self

Create a new partition spec builder with the given schema.

pub fn new_from_unbound( unbound: UnboundPartitionSpec, schema: impl Into<SchemaRef>, ) -> Result<Self>

Create a new partition spec builder from an existing unbound partition spec.

pub fn with_last_assigned_field_id(self, last_assigned_field_id: i32) -> Self

Set the last assigned field id for the partition spec.

Set this field when a new partition spec is created for an existing TableMetaData. As field_id must be unique in V2 metadata, this should be set to the highest field id used previously.

pub fn with_spec_id(self, spec_id: i32) -> Self

Set the spec id for the partition spec.

pub fn add_partition_field( self, source_name: impl AsRef<str>, target_name: impl Into<String>, transform: Transform, ) -> Result<Self>

Add a new partition field to the partition spec.

pub fn add_unbound_field(self, field: UnboundPartitionField) -> Result<Self>

Add a new partition field to the partition spec.

If partition field id is set, it is used as the field id. Otherwise, a new field_id is assigned.

pub fn add_unbound_fields( self, fields: impl IntoIterator<Item = UnboundPartitionField>, ) -> Result<Self>

Wrapper around with_unbound_fields to add multiple partition fields.

pub fn build(self) -> Result<PartitionSpec>

Build a bound partition spec with the given schema.

Trait Implementations§

impl Debug for PartitionSpecBuilder

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

impl UnwindSafe for PartitionSpecBuilder

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