Function plan_read_then_write

src/sql/src/plan/statement/dml.rs:158–185

(
    scx: &StatementContext,
    kind: MutationKind,
    params: &Params,
    query::ReadThenWritePlan {
        id,
        mut selection,
        finishing,
        assignments,
    }: query::ReadT

}

pub fn plan_read_then_write(
    scx: &StatementContext,
    kind: MutationKind,
    params: &Params,
    query::ReadThenWritePlan {
        id,
        mut selection,
        finishing,
        assignments,
    }: query::ReadThenWritePlan,
) -> Result<Plan, PlanError> {
    selection.bind_parameters_and_simplify_offset(scx, QueryLifetime::OneShot, params)?;
    let mut assignments_outer = BTreeMap::new();
    for (idx, mut set) in assignments {
        set.bind_parameters_and_simplify_offset(scx, QueryLifetime::OneShot, params)?;
        let set = set.lower_uncorrelated(scx.catalog.system_vars())?;
        assignments_outer.insert(idx, set);
    }

    Ok(Plan::ReadThenWrite(ReadThenWritePlan {
        id,
        selection,
        finishing,
        assignments: assignments_outer,
        kind,
        returning: Vec::new(),
    }))
}

pub fn describe_select(
    scx: &StatementContext,