[−][src]Trait diesel::expression::Expression
Represents a typed fragment of SQL.
Apps should not need to implement this type directly, but it may be common
to use this in where clauses. Libraries should consider using
diesel_infix_operator!
or
diesel_postfix_operator!
instead of
implementing this directly.
Associated Types
type SqlType
The type that this expression represents in SQL
Implementations on Foreign Types
impl<T: Expression + ?Sized> Expression for Box<T>
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impl<'a, T: Expression + ?Sized> Expression for &'a T
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impl<A: Expression + NonAggregate> Expression for (A,)
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type SqlType = (<A as Expression>::SqlType,)
impl<A: Expression + NonAggregate, B: Expression + NonAggregate> Expression for (A, B)
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type SqlType = (<A as Expression>::SqlType, <B as Expression>::SqlType)
impl<A: Expression + NonAggregate, B: Expression + NonAggregate, C: Expression + NonAggregate> Expression for (A, B, C)
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type SqlType = (<A as Expression>::SqlType, <B as Expression>::SqlType, <C as Expression>::SqlType)
impl<A: Expression + NonAggregate, B: Expression + NonAggregate, C: Expression + NonAggregate, D: Expression + NonAggregate> Expression for (A, B, C, D)
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type SqlType = (<A as Expression>::SqlType, <B as Expression>::SqlType, <C as Expression>::SqlType, <D as Expression>::SqlType)
impl<A: Expression + NonAggregate, B: Expression + NonAggregate, C: Expression + NonAggregate, D: Expression + NonAggregate, E: Expression + NonAggregate> Expression for (A, B, C, D, E)
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type SqlType = (<A as Expression>::SqlType, <B as Expression>::SqlType, <C as Expression>::SqlType, <D as Expression>::SqlType, <E as Expression>::SqlType)
impl<A: Expression + NonAggregate, B: Expression + NonAggregate, C: Expression + NonAggregate, D: Expression + NonAggregate, E: Expression + NonAggregate, F: Expression + NonAggregate> Expression for (A, B, C, D, E, F)
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type SqlType = (<A as Expression>::SqlType, <B as Expression>::SqlType, <C as Expression>::SqlType, <D as Expression>::SqlType, <E as Expression>::SqlType, <F as Expression>::SqlType)
impl<A: Expression + NonAggregate, B: Expression + NonAggregate, C: Expression + NonAggregate, D: Expression + NonAggregate, E: Expression + NonAggregate, F: Expression + NonAggregate, G: Expression + NonAggregate> Expression for (A, B, C, D, E, F, G)
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type SqlType = (<A as Expression>::SqlType, <B as Expression>::SqlType, <C as Expression>::SqlType, <D as Expression>::SqlType, <E as Expression>::SqlType, <F as Expression>::SqlType, <G as Expression>::SqlType)
impl<A: Expression + NonAggregate, B: Expression + NonAggregate, C: Expression + NonAggregate, D: Expression + NonAggregate, E: Expression + NonAggregate, F: Expression + NonAggregate, G: Expression + NonAggregate, H: Expression + NonAggregate> Expression for (A, B, C, D, E, F, G, H)
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type SqlType = (<A as Expression>::SqlType, <B as Expression>::SqlType, <C as Expression>::SqlType, <D as Expression>::SqlType, <E as Expression>::SqlType, <F as Expression>::SqlType, <G as Expression>::SqlType, <H as Expression>::SqlType)
impl<A: Expression + NonAggregate, B: Expression + NonAggregate, C: Expression + NonAggregate, D: Expression + NonAggregate, E: Expression + NonAggregate, F: Expression + NonAggregate, G: Expression + NonAggregate, H: Expression + NonAggregate, I: Expression + NonAggregate> Expression for (A, B, C, D, E, F, G, H, I)
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type SqlType = (<A as Expression>::SqlType, <B as Expression>::SqlType, <C as Expression>::SqlType, <D as Expression>::SqlType, <E as Expression>::SqlType, <F as Expression>::SqlType, <G as Expression>::SqlType, <H as Expression>::SqlType, <I as Expression>::SqlType)
impl<A: Expression + NonAggregate, B: Expression + NonAggregate, C: Expression + NonAggregate, D: Expression + NonAggregate, E: Expression + NonAggregate, F: Expression + NonAggregate, G: Expression + NonAggregate, H: Expression + NonAggregate, I: Expression + NonAggregate, J: Expression + NonAggregate> Expression for (A, B, C, D, E, F, G, H, I, J)
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type SqlType = (<A as Expression>::SqlType, <B as Expression>::SqlType, <C as Expression>::SqlType, <D as Expression>::SqlType, <E as Expression>::SqlType, <F as Expression>::SqlType, <G as Expression>::SqlType, <H as Expression>::SqlType, <I as Expression>::SqlType, <J as Expression>::SqlType)
impl<A: Expression + NonAggregate, B: Expression + NonAggregate, C: Expression + NonAggregate, D: Expression + NonAggregate, E: Expression + NonAggregate, F: Expression + NonAggregate, G: Expression + NonAggregate, H: Expression + NonAggregate, I: Expression + NonAggregate, J: Expression + NonAggregate, K: Expression + NonAggregate> Expression for (A, B, C, D, E, F, G, H, I, J, K)
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type SqlType = (<A as Expression>::SqlType, <B as Expression>::SqlType, <C as Expression>::SqlType, <D as Expression>::SqlType, <E as Expression>::SqlType, <F as Expression>::SqlType, <G as Expression>::SqlType, <H as Expression>::SqlType, <I as Expression>::SqlType, <J as Expression>::SqlType, <K as Expression>::SqlType)
impl<A: Expression + NonAggregate, B: Expression + NonAggregate, C: Expression + NonAggregate, D: Expression + NonAggregate, E: Expression + NonAggregate, F: Expression + NonAggregate, G: Expression + NonAggregate, H: Expression + NonAggregate, I: Expression + NonAggregate, J: Expression + NonAggregate, K: Expression + NonAggregate, L: Expression + NonAggregate> Expression for (A, B, C, D, E, F, G, H, I, J, K, L)
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type SqlType = (<A as Expression>::SqlType, <B as Expression>::SqlType, <C as Expression>::SqlType, <D as Expression>::SqlType, <E as Expression>::SqlType, <F as Expression>::SqlType, <G as Expression>::SqlType, <H as Expression>::SqlType, <I as Expression>::SqlType, <J as Expression>::SqlType, <K as Expression>::SqlType, <L as Expression>::SqlType)
impl<A: Expression + NonAggregate, B: Expression + NonAggregate, C: Expression + NonAggregate, D: Expression + NonAggregate, E: Expression + NonAggregate, F: Expression + NonAggregate, G: Expression + NonAggregate, H: Expression + NonAggregate, I: Expression + NonAggregate, J: Expression + NonAggregate, K: Expression + NonAggregate, L: Expression + NonAggregate, M: Expression + NonAggregate> Expression for (A, B, C, D, E, F, G, H, I, J, K, L, M)
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type SqlType = (<A as Expression>::SqlType, <B as Expression>::SqlType, <C as Expression>::SqlType, <D as Expression>::SqlType, <E as Expression>::SqlType, <F as Expression>::SqlType, <G as Expression>::SqlType, <H as Expression>::SqlType, <I as Expression>::SqlType, <J as Expression>::SqlType, <K as Expression>::SqlType, <L as Expression>::SqlType, <M as Expression>::SqlType)
impl<A: Expression + NonAggregate, B: Expression + NonAggregate, C: Expression + NonAggregate, D: Expression + NonAggregate, E: Expression + NonAggregate, F: Expression + NonAggregate, G: Expression + NonAggregate, H: Expression + NonAggregate, I: Expression + NonAggregate, J: Expression + NonAggregate, K: Expression + NonAggregate, L: Expression + NonAggregate, M: Expression + NonAggregate, N: Expression + NonAggregate> Expression for (A, B, C, D, E, F, G, H, I, J, K, L, M, N)
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type SqlType = (<A as Expression>::SqlType, <B as Expression>::SqlType, <C as Expression>::SqlType, <D as Expression>::SqlType, <E as Expression>::SqlType, <F as Expression>::SqlType, <G as Expression>::SqlType, <H as Expression>::SqlType, <I as Expression>::SqlType, <J as Expression>::SqlType, <K as Expression>::SqlType, <L as Expression>::SqlType, <M as Expression>::SqlType, <N as Expression>::SqlType)
impl<A: Expression + NonAggregate, B: Expression + NonAggregate, C: Expression + NonAggregate, D: Expression + NonAggregate, E: Expression + NonAggregate, F: Expression + NonAggregate, G: Expression + NonAggregate, H: Expression + NonAggregate, I: Expression + NonAggregate, J: Expression + NonAggregate, K: Expression + NonAggregate, L: Expression + NonAggregate, M: Expression + NonAggregate, N: Expression + NonAggregate, O: Expression + NonAggregate> Expression for (A, B, C, D, E, F, G, H, I, J, K, L, M, N, O)
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type SqlType = (<A as Expression>::SqlType, <B as Expression>::SqlType, <C as Expression>::SqlType, <D as Expression>::SqlType, <E as Expression>::SqlType, <F as Expression>::SqlType, <G as Expression>::SqlType, <H as Expression>::SqlType, <I as Expression>::SqlType, <J as Expression>::SqlType, <K as Expression>::SqlType, <L as Expression>::SqlType, <M as Expression>::SqlType, <N as Expression>::SqlType, <O as Expression>::SqlType)
impl<A: Expression + NonAggregate, B: Expression + NonAggregate, C: Expression + NonAggregate, D: Expression + NonAggregate, E: Expression + NonAggregate, F: Expression + NonAggregate, G: Expression + NonAggregate, H: Expression + NonAggregate, I: Expression + NonAggregate, J: Expression + NonAggregate, K: Expression + NonAggregate, L: Expression + NonAggregate, M: Expression + NonAggregate, N: Expression + NonAggregate, O: Expression + NonAggregate, P: Expression + NonAggregate> Expression for (A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P)
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type SqlType = (<A as Expression>::SqlType, <B as Expression>::SqlType, <C as Expression>::SqlType, <D as Expression>::SqlType, <E as Expression>::SqlType, <F as Expression>::SqlType, <G as Expression>::SqlType, <H as Expression>::SqlType, <I as Expression>::SqlType, <J as Expression>::SqlType, <K as Expression>::SqlType, <L as Expression>::SqlType, <M as Expression>::SqlType, <N as Expression>::SqlType, <O as Expression>::SqlType, <P as Expression>::SqlType)
Implementors
impl Expression for now
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impl<Query, Value> Expression for UncheckedBind<Query, Value> where
Query: Expression,
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Query: Expression,