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 table 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 the string was already previously validated.

The QuestDB server will reject an invalid column name.

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

Performs copy-assignment from source. Read more
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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.
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impl<'a> Copy for ColumnName<'a>

Auto Trait Implementations§

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impl<'a> Freeze for ColumnName<'a>

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impl<'a> RefUnwindSafe for ColumnName<'a>

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impl<'a> Send for ColumnName<'a>

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impl<'a> Sync for ColumnName<'a>

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impl<'a> Unpin for ColumnName<'a>

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

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> 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> 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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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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.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> ErasedDestructor for T
where T: 'static,