Struct IrSource 

pub struct IrSource {
    pub type_name: String,
    pub table: String,
    pub alias: String,
    pub poly: Option<IrPolyFanout>,
}

The relation being queried: a resolved type with its PostgreSQL table name and a unique alias for this occurrence in the query.

Fields

type_name: String

Qualified type name, e.g. catalog::Product.

table: String

PostgreSQL table name, e.g. catalog_product.

alias: String

Alias used in emitted SQL, e.g. t0.

poly: Option<IrPolyFanout>

Set when type_name is an interface and the rows have to be read from the implementors rather than the interface’s own view.

The view carries only the interface’s columns and no discriminator, so reading through it tags every row as the interface and hydrates the interface class instead of the concrete one. The SQL emitters get no schema of their own, so whether a source needs fanning out can only be decided here, while the IR is built.

None everywhere it would be wrong or pointless — a DML target cannot be a union, and a concrete type has nothing to fan out to.

Trait Implementations

impl Clone for IrSource

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for IrSource

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

Formats the value using the given formatter.