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TableFunctionInfo

Struct TableFunctionInfo 

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pub struct TableFunctionInfo<V: VTab> { /* private fields */ }
Expand description

An interface to store and retrieve data during the function execution stage

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impl<V: VTab> TableFunctionInfo<V>

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pub fn set_error(&self, error: &str)

Report that an error has occurred while executing the function.

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  • error: The error message
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pub fn get_bind_data(&self) -> &V::BindData

Gets the bind data set by BindInfo::set_bind_data during the bind.

Note that the bind data should be considered as read-only. For tracking state, use the init data instead.

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pub fn get_init_data(&self) -> &V::InitData

Get a reference to the init data set by InitInfo::set_init_data during the init.

This returns a shared reference because the init data is shared between multiple threads. It may internally be mutable.

§Arguments
  • returns: The init data object
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pub fn get_extra_info<T>(&self) -> *mut T

Retrieves the extra info of the function as set in TableFunction::set_extra_info.

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pub fn get_local_init_data<T>(&self) -> *mut T

Gets the thread-local init data set by InitInfo::set_init_data during the local_init.

§Arguments
  • returns: The init data object

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impl<V: Debug + VTab> Debug for TableFunctionInfo<V>

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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<V: VTab> From<*mut _duckdb_function_info> for TableFunctionInfo<V>

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fn from(ptr: duckdb_function_info) -> Self

Converts to this type from the input type.

Auto Trait Implementations§

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impl<V> Freeze for TableFunctionInfo<V>

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impl<V> RefUnwindSafe for TableFunctionInfo<V>
where V: RefUnwindSafe,

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impl<V> !Send for TableFunctionInfo<V>

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impl<V> !Sync for TableFunctionInfo<V>

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impl<V> Unpin for TableFunctionInfo<V>
where V: Unpin,

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impl<V> UnsafeUnpin for TableFunctionInfo<V>

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impl<V> UnwindSafe for TableFunctionInfo<V>
where V: UnwindSafe,

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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<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> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. 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