Struct TransformSpec 

pub struct TransformSpec {
    pub output_schema: Schema,
    pub steps: Vec<TransformStep>,
}

A user-provided transformation specification with an explicit output schema.

The output schema is used to:

• enforce required output columns exist
• enforce output types (via casting) when collecting back into a DataSet

Fields

output_schema: Schema

steps: Vec<TransformStep>

Implementations

impl TransformSpec

pub fn new(output_schema: Schema) -> Self

pub fn with_step(self, step: TransformStep) -> Self

pub fn apply(&self, input: &DataSet) -> IngestionResult<DataSet>

Apply this spec to an input dataset.

Trait Implementations

impl Clone for TransformSpec

fn clone(&self) -> TransformSpec

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for TransformSpec

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for TransformSpec

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for TransformSpec

fn eq(&self, other: &TransformSpec) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for TransformSpec

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for TransformSpec