CrudExpr

Enum CrudExpr 

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pub enum CrudExpr {
    Query(QueryExpr),
    Insert {
        table: DbTable,
        rows: Vec<ProductValue>,
    },
    Update {
        delete: QueryExpr,
        assignments: IntMap<ColId, ColExpr>,
    },
    Delete {
        query: QueryExpr,
    },
    SetVar {
        name: String,
        literal: String,
    },
    ReadVar {
        name: String,
    },
}

Variants§

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Query(QueryExpr)

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Insert

Fields

§table: DbTable
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Update

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§delete: QueryExpr
§assignments: IntMap<ColId, ColExpr>
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Delete

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SetVar

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§name: String
§literal: String
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ReadVar

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§name: String

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impl CrudExpr

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pub fn optimize(self, row_count: &impl Fn(TableId, &str) -> i64) -> Self

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pub fn is_reads<'a>(exprs: impl IntoIterator<Item = &'a CrudExpr>) -> bool

Trait Implementations§

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impl AuthAccess for CrudExpr

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fn check_auth(&self, owner: Identity, caller: Identity) -> Result<(), AuthError>

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impl Debug for CrudExpr

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl PartialEq for CrudExpr

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fn eq(&self, other: &CrudExpr) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Eq for CrudExpr

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impl StructuralPartialEq for CrudExpr

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Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.