Function mz_sql::plan::query::cast_relation

source ยท 
pub(crate) fn cast_relation<'a, I>(
    qcx: &QueryContext<'_>,
    ccx: CastContext,
    expr: HirRelationExpr,
    target_types: I,
) -> Result<HirRelationExpr, CastRelationError>
where
    I: IntoIterator<Item = &'a ScalarType>,
Expand description

Cast a relation from one type to another using the specified type of cast.

The length of target_types must match the arity of expr.