Enum MetadataColumn 

pub enum MetadataColumn {
    ExtractedAt,
    LoadedAt,
    RunId,
    Source,
    Sequence,
}

A metadata column to stamp onto every row.

Variants

ExtractedAt

When the record entered the pipeline (ingest time). In the sink-decorator model this is captured just before the write, so it’s ≈ loaded_at.

LoadedAt

Sink write time.

RunId

The pipeline run id.

Source

The source connector kind / stream id.

Sequence

A monotonic per-run row ordinal.

Implementations

impl MetadataColumn

pub fn suffix(self) -> &'static str

The column-name suffix (appended to the prefix as {prefix}_{suffix}).

Trait Implementations

impl Clone for MetadataColumn

fn clone(&self) -> MetadataColumn

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for MetadataColumn

impl Debug for MetadataColumn

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for MetadataColumn

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for MetadataColumn

impl JsonSchema for MetadataColumn

fn schema_name() -> Cow<'static, str>

The name of the generated JSON Schema.

fn schema_id() -> Cow<'static, str>

Returns a string that uniquely identifies the schema produced by this type.

fn json_schema(generator: &mut SchemaGenerator) -> Schema

Generates a JSON Schema for this type.

fn inline_schema() -> bool

Whether JSON Schemas generated for this type should be included directly in parent schemas, rather than being re-used where possible using the $ref keyword.

impl PartialEq for MetadataColumn

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for MetadataColumn

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 MetadataColumn