Function plan_table_factor

src/sql/src/plan/query.rs:2987–3039

(
    qcx: &QueryContext,
    table_factor: &TableFactor<Aug>,
)

}

fn plan_table_factor(
    qcx: &QueryContext,
    table_factor: &TableFactor<Aug>,
) -> Result<(HirRelationExpr, Scope), PlanError> {
    match table_factor {
        TableFactor::Table { name, alias } => {
            let (expr, scope) = qcx.resolve_table_name(name.clone())?;
            let scope = plan_table_alias(scope, alias.as_ref())?;
            Ok((expr, scope))
        }

        TableFactor::Function {
            function,
            alias,
            with_ordinality,
        } => plan_solitary_table_function(qcx, function, alias.as_ref(), *with_ordinality),

        TableFactor::RowsFrom {
            functions,
            alias,
            with_ordinality,
        } => plan_rows_from(qcx, functions, alias.as_ref(), *with_ordinality),

        TableFactor::Derived {
            lateral,
            subquery,
            alias,
        } => {
            let mut qcx = (*qcx).clone();
            if !lateral {
                // Since this derived table was not marked as `LATERAL`,
                // make elements in outer scopes invisible until we reach the
                // next lateral barrier.
                for scope in &mut qcx.outer_scopes {
                    if scope.lateral_barrier {
                        break;
                    }
                    scope.items.clear();
                }
            }
            qcx.outer_scopes[0].lateral_barrier = true;
            let (expr, scope) = plan_nested_query(&mut qcx, subquery)?;
            let scope = plan_table_alias(scope, alias.as_ref())?;
            Ok((expr, scope))
        }

        TableFactor::NestedJoin { join, alias } => {
            let (expr, scope) = plan_table_with_joins(qcx, join)?;
            let scope = plan_table_alias(scope, alias.as_ref())?;
            Ok((expr, scope))
        }
    }
}

/// Plans a `ROWS FROM` expression.
///