idb::innodb::schema

Struct DdIndexElement

pub struct DdIndexElement {
    pub column_opx: u64,
    pub length: u64,
    pub order: u64,
    pub hidden: bool,
}

Expand description

Data dictionary index element (column reference).

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§column_opx: u64

0-based index into the columns array as ordered in the SDI JSON.

§length: u64

Prefix length (4294967295 = full column).

§order: u64

Sort order: 2=ASC, 1=DESC.

§hidden: bool

Whether this element is hidden (internal).

Trait Implementations§

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impl Debug for DdIndexElement

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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 Default for DdIndexElement

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fn default() -> DdIndexElement

Returns the “default value” for a type. Read more

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impl<'de> Deserialize<'de> for DdIndexElement

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fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more

Auto Trait Implementations§

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impl UnwindSafe for DdIndexElement

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<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 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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