Struct UpdateSeed 

pub struct UpdateSeed<D, T> { /* private fields */ }

Implementations

impl<D, T: Table> UpdateSeed<D, T>

pub fn correlated<S, InnerSel>( &self, source: S, selection: InnerSel, ) -> Select<D, Cons<TableSlot<S::Table, NotNull>, WrittenTable<T>>, InnerSel, WrittenTable<T>>

where S: JoinSource<D>,

A correlated subquery over the table this statement will write — available before the SET list, since the scope it correlates against is the table, not the assignments.

pub fn set_to<C, V, Idxs>(self, column: Column<C>, value: V) -> Update<D, T>

where C: ColumnKey<Table = T> + Writable, V: IntoExpr, V::Sql: AssignsTo<C::Sql>, WrittenTable<T>: Superset<V::Req, Idxs>,

SET column = <expression> as the statement’s first assignment — infallible, since one assignment is one assignment. .set_to(..) again for more.

pub fn set(self, sets: Assignments<T>) -> Update<D, T>

The statement’s SET list. Infallible: an Assignments holds at least one assignment by construction, and the empty case an *Update can be lives in Assignments::from_row, which is where the ? goes.