diesel/query_builder/select_statement/
dsl_impls.rs

1use super::BoxedSelectStatement;
2use crate::associations::HasTable;
3use crate::backend::Backend;
4use crate::dsl::AsExprOf;
5use crate::expression::nullable::Nullable;
6use crate::expression::*;
7use crate::insertable::Insertable;
8use crate::query_builder::NoFromClause;
9use crate::query_builder::combination_clause::*;
10use crate::query_builder::distinct_clause::*;
11use crate::query_builder::from_clause::AsQuerySource;
12use crate::query_builder::from_clause::FromClause;
13use crate::query_builder::group_by_clause::*;
14use crate::query_builder::insert_statement::InsertFromSelect;
15use crate::query_builder::limit_clause::*;
16use crate::query_builder::limit_offset_clause::{BoxedLimitOffsetClause, LimitOffsetClause};
17use crate::query_builder::locking_clause::*;
18use crate::query_builder::offset_clause::*;
19use crate::query_builder::order_clause::*;
20use crate::query_builder::select_clause::*;
21use crate::query_builder::update_statement::target::*;
22use crate::query_builder::where_clause::*;
23use crate::query_builder::{
24    AsQuery, IntoBoxedClause, Query, QueryFragment, SelectQuery, SelectStatement,
25};
26use crate::query_dsl::group_by_dsl::ValidDistinctForGroupBy;
27use crate::query_dsl::methods::*;
28use crate::query_dsl::order_dsl::ValidOrderingForDistinct;
29use crate::query_dsl::*;
30use crate::query_source::QuerySource;
31use crate::query_source::joins::{Join, JoinOn, JoinTo};
32use crate::sql_types::{BigInt, BoolOrNullableBool};
33use alloc::boxed::Box;
34
35impl<F, D, W, O, LOf, G, H, LC, Rhs, Kind, On> InternalJoinDsl<Rhs, Kind, On>
36    for SelectStatement<FromClause<F>, DefaultSelectClause<FromClause<F>>, D, W, O, LOf, G, H, LC>
37where
38    F: QuerySource,
39    Rhs: QuerySource,
40    JoinOn<Join<F, Rhs, Kind>, On>: QuerySource,
41    SelectStatement<
42        FromClause<JoinOn<Join<F, Rhs, Kind>, On>>,
43        DefaultSelectClause<FromClause<JoinOn<Join<F, Rhs, Kind>, On>>>,
44        D,
45        W,
46        O,
47        LOf,
48        G,
49        H,
50        LC,
51    >: AsQuery,
52{
53    type Output = SelectStatement<
54        FromClause<JoinOn<Join<F, Rhs, Kind>, On>>,
55        DefaultSelectClause<FromClause<JoinOn<Join<F, Rhs, Kind>, On>>>,
56        D,
57        W,
58        O,
59        LOf,
60        G,
61        H,
62        LC,
63    >;
64
65    fn join(self, rhs: Rhs, kind: Kind, on: On) -> Self::Output {
66        let from = FromClause::new(Join::new(self.from.source, rhs, kind).on(on));
67        SelectStatement::new(
68            DefaultSelectClause::new(&from),
69            from,
70            self.distinct,
71            self.where_clause,
72            self.order,
73            self.limit_offset,
74            self.group_by,
75            self.having,
76            self.locking,
77        )
78    }
79}
80
81impl<F, S, D, W, O, LOf, G, H, LC, Rhs, Kind, On> InternalJoinDsl<Rhs, Kind, On>
82    for SelectStatement<FromClause<F>, SelectClause<S>, D, W, O, LOf, G, H, LC>
83where
84    F: QuerySource,
85    Rhs: QuerySource,
86    JoinOn<Join<F, Rhs, Kind>, On>: QuerySource,
87    SelectStatement<
88        FromClause<JoinOn<Join<F, Rhs, Kind>, On>>,
89        SelectClause<S>,
90        D,
91        W,
92        O,
93        LOf,
94        G,
95        H,
96        LC,
97    >: AsQuery,
98{
99    type Output = SelectStatement<
100        FromClause<JoinOn<Join<F, Rhs, Kind>, On>>,
101        SelectClause<S>,
102        D,
103        W,
104        O,
105        LOf,
106        G,
107        H,
108        LC,
109    >;
110
111    fn join(self, rhs: Rhs, kind: Kind, on: On) -> Self::Output {
112        SelectStatement::new(
113            self.select,
114            FromClause::new(Join::new(self.from.source, rhs, kind).on(on)),
115            self.distinct,
116            self.where_clause,
117            self.order,
118            self.limit_offset,
119            self.group_by,
120            self.having,
121            self.locking,
122        )
123    }
124}
125
126impl<F, S, D, W, O, LOf, G, H, LC, Selection> SelectDsl<Selection>
127    for SelectStatement<FromClause<F>, S, D, W, O, LOf, G, H, LC>
128where
129    G: ValidGroupByClause,
130    F: QuerySource,
131    Selection: SelectableExpression<F> + ValidGrouping<G::Expressions>,
132    SelectStatement<FromClause<F>, SelectClause<Selection>, D, W, O, LOf, G, H, LC>: SelectQuery,
133    D: ValidDistinctForGroupBy<Selection, G::Expressions>,
134{
135    type Output = SelectStatement<FromClause<F>, SelectClause<Selection>, D, W, O, LOf, G, H, LC>;
136
137    fn select(self, selection: Selection) -> Self::Output {
138        SelectStatement::new(
139            SelectClause(selection),
140            self.from,
141            self.distinct,
142            self.where_clause,
143            self.order,
144            self.limit_offset,
145            self.group_by,
146            self.having,
147            self.locking,
148        )
149    }
150}
151
152impl<S, D, W, O, LOf, G, H, LC, Selection> SelectDsl<Selection>
153    for SelectStatement<NoFromClause, S, D, W, O, LOf, G, H, LC>
154where
155    G: ValidGroupByClause,
156    Selection: SelectableExpression<NoFromClause> + ValidGrouping<G::Expressions>,
157    SelectStatement<NoFromClause, SelectClause<Selection>, D, W, O, LOf, G, H, LC>: SelectQuery,
158    D: ValidDistinctForGroupBy<Selection, G::Expressions>,
159{
160    type Output = SelectStatement<NoFromClause, SelectClause<Selection>, D, W, O, LOf, G, H, LC>;
161
162    fn select(self, selection: Selection) -> Self::Output {
163        SelectStatement::new(
164            SelectClause(selection),
165            self.from,
166            self.distinct,
167            self.where_clause,
168            self.order,
169            self.limit_offset,
170            self.group_by,
171            self.having,
172            self.locking,
173        )
174    }
175}
176
177impl<ST, F, S, D, W, O, LOf, G, H> DistinctDsl for SelectStatement<F, S, D, W, O, LOf, G, H>
178where
179    Self: SelectQuery<SqlType = ST>,
180    SelectStatement<F, S, DistinctClause, W, O, LOf, G, H>: SelectQuery<SqlType = ST>,
181{
182    type Output = SelectStatement<F, S, DistinctClause, W, O, LOf, G, H>;
183
184    fn distinct(self) -> Self::Output {
185        SelectStatement::new(
186            self.select,
187            self.from,
188            DistinctClause,
189            self.where_clause,
190            self.order,
191            self.limit_offset,
192            self.group_by,
193            self.having,
194            self.locking,
195        )
196    }
197}
198
199impl<F, S, D, W, O, LOf, G, H, LC, Predicate> FilterDsl<Predicate>
200    for SelectStatement<F, S, D, W, O, LOf, G, H, LC>
201where
202    Predicate: Expression + NonAggregate,
203    Predicate::SqlType: BoolOrNullableBool,
204    W: WhereAnd<Predicate>,
205{
206    type Output = SelectStatement<F, S, D, W::Output, O, LOf, G, H, LC>;
207
208    fn filter(self, predicate: Predicate) -> Self::Output {
209        SelectStatement::new(
210            self.select,
211            self.from,
212            self.distinct,
213            self.where_clause.and(predicate),
214            self.order,
215            self.limit_offset,
216            self.group_by,
217            self.having,
218            self.locking,
219        )
220    }
221}
222
223impl<F, S, D, W, O, LOf, G, H, LC, Predicate> OrFilterDsl<Predicate>
224    for SelectStatement<F, S, D, W, O, LOf, G, H, LC>
225where
226    Predicate: Expression + NonAggregate,
227    Predicate::SqlType: BoolOrNullableBool,
228    W: WhereOr<Predicate>,
229{
230    type Output = SelectStatement<F, S, D, W::Output, O, LOf, G, H, LC>;
231
232    fn or_filter(self, predicate: Predicate) -> Self::Output {
233        SelectStatement::new(
234            self.select,
235            self.from,
236            self.distinct,
237            self.where_clause.or(predicate),
238            self.order,
239            self.limit_offset,
240            self.group_by,
241            self.having,
242            self.locking,
243        )
244    }
245}
246
247use crate::dsl::Filter;
248use crate::expression_methods::EqAll;
249use crate::query_builder::having_clause::{HavingClause, NoHavingClause};
250use crate::query_source::Table;
251
252impl<F, S, D, W, O, LOf, G, H, LC, PK> FindDsl<PK>
253    for SelectStatement<FromClause<F>, S, D, W, O, LOf, G, H, LC>
254where
255    F: Table,
256    F::PrimaryKey: EqAll<PK>,
257    Self: FilterDsl<<F::PrimaryKey as EqAll<PK>>::Output>,
258{
259    type Output = Filter<Self, <F::PrimaryKey as EqAll<PK>>::Output>;
260
261    fn find(self, id: PK) -> Self::Output {
262        let primary_key = self.from.source.primary_key();
263        FilterDsl::filter(self, primary_key.eq_all(id))
264    }
265}
266
267// no impls for `NoFromClause` here because order is not really supported there yet
268impl<ST, F, S, D, W, O, LOf, G, H, LC, Expr> OrderDsl<Expr>
269    for SelectStatement<FromClause<F>, S, D, W, O, LOf, G, H, LC>
270where
271    F: QuerySource,
272    Expr: AppearsOnTable<F>,
273    Self: SelectQuery<SqlType = ST>,
274    SelectStatement<FromClause<F>, S, D, W, OrderClause<Expr>, LOf, G, H, LC>:
275        SelectQuery<SqlType = ST>,
276    OrderClause<Expr>: ValidOrderingForDistinct<D>,
277{
278    type Output = SelectStatement<FromClause<F>, S, D, W, OrderClause<Expr>, LOf, G, H, LC>;
279
280    fn order(self, expr: Expr) -> Self::Output {
281        let order = OrderClause(expr);
282        SelectStatement::new(
283            self.select,
284            self.from,
285            self.distinct,
286            self.where_clause,
287            order,
288            self.limit_offset,
289            self.group_by,
290            self.having,
291            self.locking,
292        )
293    }
294}
295
296impl<F, S, D, W, O, LOf, G, H, LC, Expr> ThenOrderDsl<Expr>
297    for SelectStatement<FromClause<F>, S, D, W, OrderClause<O>, LOf, G, H, LC>
298where
299    F: QuerySource,
300    Expr: AppearsOnTable<F>,
301{
302    type Output = SelectStatement<FromClause<F>, S, D, W, OrderClause<(O, Expr)>, LOf, G, H, LC>;
303
304    fn then_order_by(self, expr: Expr) -> Self::Output {
305        SelectStatement::new(
306            self.select,
307            self.from,
308            self.distinct,
309            self.where_clause,
310            OrderClause((self.order.0, expr)),
311            self.limit_offset,
312            self.group_by,
313            self.having,
314            self.locking,
315        )
316    }
317}
318
319impl<F, S, D, W, LOf, G, LC, Expr> ThenOrderDsl<Expr>
320    for SelectStatement<F, S, D, W, NoOrderClause, LOf, G, LC>
321where
322    Expr: Expression,
323    Self: OrderDsl<Expr>,
324{
325    type Output = crate::dsl::Order<Self, Expr>;
326
327    fn then_order_by(self, expr: Expr) -> Self::Output {
328        self.order_by(expr)
329    }
330}
331
332#[doc(hidden)]
333type Limit = AsExprOf<i64, BigInt>;
334
335impl<ST, F, S, D, W, O, L, Of, G, H, LC> LimitDsl
336    for SelectStatement<F, S, D, W, O, LimitOffsetClause<L, Of>, G, H, LC>
337where
338    Self: SelectQuery<SqlType = ST>,
339    SelectStatement<F, S, D, W, O, LimitOffsetClause<LimitClause<Limit>, Of>, G, H, LC>:
340        SelectQuery<SqlType = ST>,
341{
342    type Output =
343        SelectStatement<F, S, D, W, O, LimitOffsetClause<LimitClause<Limit>, Of>, G, H, LC>;
344
345    fn limit(self, limit: i64) -> Self::Output {
346        let limit_clause = LimitClause(limit.into_sql::<BigInt>());
347        SelectStatement::new(
348            self.select,
349            self.from,
350            self.distinct,
351            self.where_clause,
352            self.order,
353            LimitOffsetClause {
354                limit_clause,
355                offset_clause: self.limit_offset.offset_clause,
356            },
357            self.group_by,
358            self.having,
359            self.locking,
360        )
361    }
362}
363
364#[doc(hidden)]
365type Offset = Limit;
366
367impl<ST, F, S, D, W, O, L, Of, G, H, LC> OffsetDsl
368    for SelectStatement<F, S, D, W, O, LimitOffsetClause<L, Of>, G, H, LC>
369where
370    Self: SelectQuery<SqlType = ST>,
371    SelectStatement<F, S, D, W, O, LimitOffsetClause<L, OffsetClause<Offset>>, G, H, LC>:
372        SelectQuery<SqlType = ST>,
373{
374    type Output =
375        SelectStatement<F, S, D, W, O, LimitOffsetClause<L, OffsetClause<Offset>>, G, H, LC>;
376
377    fn offset(self, offset: i64) -> Self::Output {
378        let offset_clause = OffsetClause(offset.into_sql::<BigInt>());
379        SelectStatement::new(
380            self.select,
381            self.from,
382            self.distinct,
383            self.where_clause,
384            self.order,
385            LimitOffsetClause {
386                limit_clause: self.limit_offset.limit_clause,
387                offset_clause,
388            },
389            self.group_by,
390            self.having,
391            self.locking,
392        )
393    }
394}
395
396impl<F, S, D, W, O, LOf, G, H, Expr> GroupByDsl<Expr> for SelectStatement<F, S, D, W, O, LOf, G, H>
397where
398    SelectStatement<F, S, D, W, O, LOf, GroupByClause<Expr>, H>: SelectQuery,
399    Expr: Expression + AppearsOnTable<F>,
400{
401    type Output = SelectStatement<F, S, D, W, O, LOf, GroupByClause<Expr>, H>;
402
403    fn group_by(self, expr: Expr) -> Self::Output {
404        let group_by = GroupByClause(expr);
405        SelectStatement::new(
406            self.select,
407            self.from,
408            self.distinct,
409            self.where_clause,
410            self.order,
411            self.limit_offset,
412            group_by,
413            self.having,
414            self.locking,
415        )
416    }
417}
418
419impl<F, S, W, O, LOf, Lock> LockingDsl<Lock>
420    for SelectStatement<F, S, NoDistinctClause, W, O, LOf>
421{
422    type Output = SelectStatement<
423        F,
424        S,
425        NoDistinctClause,
426        W,
427        O,
428        LOf,
429        NoGroupByClause,
430        NoHavingClause,
431        LockingClause<Lock, NoModifier>,
432    >;
433
434    fn with_lock(self, lock: Lock) -> Self::Output {
435        SelectStatement::new(
436            self.select,
437            self.from,
438            self.distinct,
439            self.where_clause,
440            self.order,
441            self.limit_offset,
442            self.group_by,
443            self.having,
444            LockingClause::new(lock, NoModifier),
445        )
446    }
447}
448
449impl<F, S, D, W, O, LOf, G, H, LC, LM, Modifier> ModifyLockDsl<Modifier>
450    for SelectStatement<F, S, D, W, O, LOf, G, H, LockingClause<LC, LM>>
451{
452    type Output = SelectStatement<F, S, D, W, O, LOf, G, H, LockingClause<LC, Modifier>>;
453
454    fn modify_lock(self, modifier: Modifier) -> Self::Output {
455        SelectStatement::new(
456            self.select,
457            self.from,
458            self.distinct,
459            self.where_clause,
460            self.order,
461            self.limit_offset,
462            self.group_by,
463            self.having,
464            LockingClause::new(self.locking.lock_mode, modifier),
465        )
466    }
467}
468
469impl<'a, F, S, D, W, O, LOf, G, H, DB> BoxedDsl<'a, DB>
470    for SelectStatement<FromClause<F>, S, D, W, O, LOf, G, H>
471where
472    Self: AsQuery,
473    DB: Backend,
474    F: QuerySource,
475    S: SelectClauseExpression<FromClause<F>> + QueryFragment<DB> + Send + 'a,
476    S::Selection: ValidGrouping<G::Expressions>,
477    D: QueryFragment<DB> + Send + 'a,
478    W: Into<BoxedWhereClause<'a, DB>>,
479    O: Into<Option<Box<dyn QueryFragment<DB> + Send + 'a>>>,
480    LOf: IntoBoxedClause<'a, DB, BoxedClause = BoxedLimitOffsetClause<'a, DB>>,
481    G: ValidGroupByClause + QueryFragment<DB> + Send + 'a,
482    H: QueryFragment<DB> + Send + 'a,
483{
484    type Output =
485        BoxedSelectStatement<'a, S::SelectClauseSqlType, FromClause<F>, DB, G::Expressions>;
486
487    fn internal_into_boxed(self) -> Self::Output {
488        BoxedSelectStatement::new(
489            self.select,
490            self.from,
491            Box::new(self.distinct),
492            self.where_clause.into(),
493            self.order.into(),
494            self.limit_offset.into_boxed(),
495            self.group_by,
496            Box::new(self.having),
497        )
498    }
499}
500
501impl<'a, S, D, W, O, LOf, G, H, DB> BoxedDsl<'a, DB>
502    for SelectStatement<NoFromClause, S, D, W, O, LOf, G, H>
503where
504    Self: AsQuery,
505    DB: Backend,
506    S: SelectClauseExpression<NoFromClause> + QueryFragment<DB> + Send + 'a,
507    S::Selection: ValidGrouping<G::Expressions>,
508    D: QueryFragment<DB> + Send + 'a,
509    W: Into<BoxedWhereClause<'a, DB>>,
510    O: Into<Option<Box<dyn QueryFragment<DB> + Send + 'a>>>,
511    LOf: IntoBoxedClause<'a, DB, BoxedClause = BoxedLimitOffsetClause<'a, DB>>,
512    G: ValidGroupByClause + QueryFragment<DB> + Send + 'a,
513    H: QueryFragment<DB> + Send + 'a,
514{
515    type Output =
516        BoxedSelectStatement<'a, S::SelectClauseSqlType, NoFromClause, DB, G::Expressions>;
517
518    fn internal_into_boxed(self) -> Self::Output {
519        BoxedSelectStatement::new_no_from_clause(
520            self.select,
521            self.from,
522            Box::new(self.distinct),
523            self.where_clause.into(),
524            self.order.into(),
525            self.limit_offset.into_boxed(),
526            self.group_by,
527            Box::new(self.having),
528        )
529    }
530}
531
532impl<F, S, D, W, O, LOf, G, H, LC> HasTable
533    for SelectStatement<FromClause<F>, S, D, W, O, LOf, G, H, LC>
534where
535    F: HasTable + QuerySource,
536{
537    type Table = F::Table;
538
539    fn table() -> Self::Table {
540        F::table()
541    }
542}
543
544impl<F, W> IntoUpdateTarget
545    for SelectStatement<FromClause<F>, DefaultSelectClause<FromClause<F>>, NoDistinctClause, W>
546where
547    F: QuerySource,
548    Self: HasTable,
549    W: ValidWhereClause<F>,
550{
551    type WhereClause = W;
552
553    fn into_update_target(self) -> UpdateTarget<Self::Table, Self::WhereClause> {
554        UpdateTarget {
555            table: Self::table(),
556            where_clause: self.where_clause,
557        }
558    }
559}
560
561// FIXME: Should we disable joining when `.group_by` has been called? Are there
562// any other query methods where a join no longer has the same semantics as
563// joining on just the table?
564impl<F, S, D, W, O, LOf, G, H, LC, Rhs> JoinTo<Rhs>
565    for SelectStatement<FromClause<F>, S, D, W, O, LOf, G, H, LC>
566where
567    F: JoinTo<Rhs> + QuerySource,
568{
569    type FromClause = <F as JoinTo<Rhs>>::FromClause;
570    type OnClause = F::OnClause;
571
572    fn join_target(rhs: Rhs) -> (Self::FromClause, Self::OnClause) {
573        F::join_target(rhs)
574    }
575}
576
577impl<F, S, D, W, O, LOf, G, H, LC> QueryDsl for SelectStatement<F, S, D, W, O, LOf, G, H, LC> {}
578
579impl<F, S, D, W, O, LOf, G, H, LC, Conn> RunQueryDsl<Conn>
580    for SelectStatement<F, S, D, W, O, LOf, G, H, LC>
581{
582}
583
584impl<F, S, D, W, O, LOf, G, H, LC, Tab> Insertable<Tab>
585    for SelectStatement<F, S, D, W, O, LOf, G, H, LC>
586where
587    Tab: Table,
588    Self: Query,
589    <Tab::AllColumns as ValidGrouping<()>>::IsAggregate:
590        MixedAggregates<is_aggregate::No, Output = is_aggregate::No>,
591{
592    type Values = InsertFromSelect<Self, Tab::AllColumns>;
593
594    fn values(self) -> Self::Values {
595        InsertFromSelect::new(self)
596    }
597}
598
599impl<F, S, D, W, O, LOf, G, H, LC, Tab> Insertable<Tab>
600    for &SelectStatement<F, S, D, W, O, LOf, G, H, LC>
601where
602    Tab: Table,
603    Self: Query,
604    <Tab::AllColumns as ValidGrouping<()>>::IsAggregate:
605        MixedAggregates<is_aggregate::No, Output = is_aggregate::No>,
606{
607    type Values = InsertFromSelect<Self, Tab::AllColumns>;
608
609    fn values(self) -> Self::Values {
610        InsertFromSelect::new(self)
611    }
612}
613
614impl<F, S, D, W, O, LOf, G, H> SelectNullableDsl
615    for SelectStatement<F, SelectClause<S>, D, W, O, LOf, G, H>
616{
617    type Output = SelectStatement<F, SelectClause<Nullable<S>>, D, W, O, LOf, G, H>;
618
619    fn nullable(self) -> Self::Output {
620        SelectStatement::new(
621            SelectClause(Nullable::new(self.select.0)),
622            self.from,
623            self.distinct,
624            self.where_clause,
625            self.order,
626            self.limit_offset,
627            self.group_by,
628            self.having,
629            self.locking,
630        )
631    }
632}
633
634impl<F, D, W, O, LOf, G, H> SelectNullableDsl
635    for SelectStatement<F, DefaultSelectClause<F>, D, W, O, LOf, G, H>
636where
637    F: AsQuerySource,
638{
639    type Output = SelectStatement<
640        F,
641        SelectClause<Nullable<<F::QuerySource as QuerySource>::DefaultSelection>>,
642        D,
643        W,
644        O,
645        LOf,
646        G,
647        H,
648    >;
649
650    fn nullable(self) -> Self::Output {
651        SelectStatement::new(
652            SelectClause(Nullable::new(
653                self.from.as_query_source().default_selection(),
654            )),
655            self.from,
656            self.distinct,
657            self.where_clause,
658            self.order,
659            self.limit_offset,
660            self.group_by,
661            self.having,
662            self.locking,
663        )
664    }
665}
666
667impl<F, S, D, W, O, LOf, G, H, Predicate> HavingDsl<Predicate>
668    for SelectStatement<FromClause<F>, S, D, W, O, LOf, GroupByClause<G>, H>
669where
670    F: QuerySource,
671    Predicate: AppearsOnTable<F>,
672    Predicate: Expression,
673    Predicate::SqlType: BoolOrNullableBool,
674{
675    type Output =
676        SelectStatement<FromClause<F>, S, D, W, O, LOf, GroupByClause<G>, HavingClause<Predicate>>;
677
678    fn having(self, predicate: Predicate) -> Self::Output {
679        SelectStatement::new(
680            self.select,
681            self.from,
682            self.distinct,
683            self.where_clause,
684            self.order,
685            self.limit_offset,
686            self.group_by,
687            HavingClause(predicate),
688            self.locking,
689        )
690    }
691}
692
693impl<F, S, D, W, O, LOf, G, H, LC> CombineDsl for SelectStatement<F, S, D, W, O, LOf, G, H, LC>
694where
695    Self: Query,
696{
697    type Query = Self;
698
699    fn union<Rhs>(self, rhs: Rhs) -> crate::dsl::Union<Self, Rhs>
700    where
701        Rhs: AsQuery<SqlType = <Self::Query as Query>::SqlType>,
702    {
703        CombinationClause::new(Union, Distinct, self, rhs.as_query())
704    }
705
706    fn union_all<Rhs>(self, rhs: Rhs) -> crate::dsl::UnionAll<Self, Rhs>
707    where
708        Rhs: AsQuery<SqlType = <Self::Query as Query>::SqlType>,
709    {
710        CombinationClause::new(Union, All, self, rhs.as_query())
711    }
712
713    fn intersect<Rhs>(self, rhs: Rhs) -> crate::dsl::Intersect<Self, Rhs>
714    where
715        Rhs: AsQuery<SqlType = <Self::Query as Query>::SqlType>,
716    {
717        CombinationClause::new(Intersect, Distinct, self, rhs.as_query())
718    }
719
720    fn intersect_all<Rhs>(self, rhs: Rhs) -> crate::dsl::IntersectAll<Self, Rhs>
721    where
722        Rhs: AsQuery<SqlType = <Self::Query as Query>::SqlType>,
723    {
724        CombinationClause::new(Intersect, All, self, rhs.as_query())
725    }
726
727    fn except<Rhs>(self, rhs: Rhs) -> crate::dsl::Except<Self, Rhs>
728    where
729        Rhs: AsQuery<SqlType = <Self::Query as Query>::SqlType>,
730    {
731        CombinationClause::new(Except, Distinct, self, rhs.as_query())
732    }
733
734    fn except_all<Rhs>(self, rhs: Rhs) -> crate::dsl::ExceptAll<Self, Rhs>
735    where
736        Rhs: AsQuery<SqlType = <Self::Query as Query>::SqlType>,
737    {
738        CombinationClause::new(Except, All, self, rhs.as_query())
739    }
740}
diesel/query_builder/select_statement/dsl_impls.rs

diesel/query_builder/select_statement/
dsl_impls.rs
