Struct ColumnName

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pub struct ColumnName<'a> { /* private fields */ }

Expand description

A validated column name.

This type simply wraps a &str.

When you pass a ColumnName instead of a plain string to a Buffer method, it doesn’t have to validate it again. This saves CPU cycles.

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impl<'a> ColumnName<'a>

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pub fn new(name: &'a str) -> Result<Self>

Construct a validated column name.

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pub fn new_unchecked(name: &'a str) -> Self

Construct a column name without validating it.

This breaks API encapsulation and is only intended for use when the string was already previously validated.

The QuestDB server will reject an invalid column name.

Trait Implementations§

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impl AsRef<str> for ColumnName<'_>

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fn as_ref(&self) -> &str

Converts this type into a shared reference of the (usually inferred) input type.

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impl<'a> Clone for ColumnName<'a>

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fn clone(&self) -> ColumnName<'a>

Returns a duplicate of the value. Read more

1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

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impl<'a> Copy for ColumnName<'a>

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impl<'a> TryFrom<&'a str> for ColumnName<'a>

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type Error = Error

The type returned in the event of a conversion error.

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fn try_from(name: &'a str) -> Result<Self>

Performs the conversion.

Auto Trait Implementations§

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impl<'a> UnwindSafe for ColumnName<'a>

Blanket Implementations§

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impl<T> Allocation for T
where T: RefUnwindSafe + Send + Sync,

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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<'a, T, E> AsTaggedExplicit<'a, E> for T
where T: 'a,

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fn explicit(self, class: Class, tag: u32) -> TaggedParser<'a, Explicit, Self, E>

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impl<'a, T, E> AsTaggedImplicit<'a, E> for T
where T: 'a,

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fn implicit( self, class: Class, constructed: bool, tag: u32, ) -> TaggedParser<'a, Implicit, Self, E>

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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<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

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impl<T> DynClone for T
where T: Clone,

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fn __clone_box(&self, _: Private) -> *mut ()

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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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