Struct FactTableMetadata 

pub struct FactTableMetadata {
    pub table_name: String,
    pub measures: Vec<MeasureColumn>,
    pub dimensions: DimensionColumn,
    pub denormalized_filters: Vec<FilterColumn>,
    pub calendar_dimensions: Vec<CalendarDimension>,
    pub partial_period: Option<PartialPeriodConfig>,
    pub native_measures: HashMap<String, String>,
    pub native_dimension_mapping: HashMap<String, String>,
}

Metadata about a fact table structure

Fields

table_name: String

Table name (e.g., “tf_sales”)

measures: Vec<MeasureColumn>

Measures (aggregatable numeric columns)

dimensions: DimensionColumn

Dimension column (JSONB)

denormalized_filters: Vec<FilterColumn>

Denormalized filter columns

calendar_dimensions: Vec<CalendarDimension>

Calendar dimensions for optimized temporal aggregations

partial_period: Option<PartialPeriodConfig>

Optional partial-period awareness configuration.

When a coarse-grain fact table (e.g. monthly pre-aggregated) is queried with a date filter that falls mid-period, the runtime generates a UNION ALL query combining fine-grain source data for boundary periods with pre-aggregated data for complete intermediate periods.

native_measures: HashMap<String, String>

Maps JSONB measure paths to flat SQL column names for pre-aggregated views.

When a materialized view stores measures as native columns (e.g. volume BIGINT) instead of inside a JSONB data column, this mapping tells the SQL generator to use SUM("volume") instead of SUM((data->'measures'->>'volume')::numeric).

native_dimension_mapping: HashMap<String, String>

Maps deep JSONB dimension paths to flat SQL column names.

When a materialized view denormalizes dimension values into flat columns (e.g. category_id INT instead of data->'dimensions'->'category'->>'id'), this mapping tells the GROUP BY generator to use GROUP BY "category_id" instead of JSONB extraction. Enables btree index usage.

Trait Implementations

impl Clone for FactTableMetadata

fn clone(&self) -> FactTableMetadata

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FactTableMetadata

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for FactTableMetadata

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for FactTableMetadata

impl PartialEq for FactTableMetadata

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for FactTableMetadata

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 FactTableMetadata