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from_nested

datafusion_substrait::logical_plan::consumer

Function from_nested 

Source 
pub async fn from_nested(
    consumer: &impl SubstraitConsumer,
    nested: &Nested,
    input_schema: &DFSchema,
) -> Result<Expr>
Expand description

Converts a Substrait Nested expression into a DataFusion Expr.

Substrait Nested expressions represent complex type constructors (list, struct, map) where elements are full expressions rather than just literals. This is used by producers that emit Nested { list: ... } for array construction, as opposed to Literal { list: ... } which only supports scalar values.