pub struct PgTypeMetadata(/* private fields */);
Available on crate feature
postgres_backend
only.Expand description
The OIDs for a SQL type
Implementations§
Source§impl PgTypeMetadata
impl PgTypeMetadata
Sourcepub fn new(type_oid: u32, array_oid: u32) -> Self
pub fn new(type_oid: u32, array_oid: u32) -> Self
Create a new instance of this type based on known constant OIDs.
Please refer to PgMetadataLookup for a way to query OIDs of custom types at run time
Sourcepub fn from_result(r: Result<(u32, u32), FailedToLookupTypeError>) -> Self
Available on crate feature i-implement-a-third-party-backend-and-opt-into-breaking-changes
only.
pub fn from_result(r: Result<(u32, u32), FailedToLookupTypeError>) -> Self
i-implement-a-third-party-backend-and-opt-into-breaking-changes
only.Create a new instance of this type based on dynamically lookup information
This function is useful for third party crates that may implement a custom postgres connection type and want to bring their own lookup mechanism.
Otherwise refer to PgMetadataLookup for a way to automatically implement the corresponding lookup functionality
Trait Implementations§
Source§impl Clone for PgTypeMetadata
impl Clone for PgTypeMetadata
Source§fn clone(&self) -> PgTypeMetadata
fn clone(&self) -> PgTypeMetadata
Returns a copy of the value. Read more
1.0.0 · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moreSource§impl Debug for PgTypeMetadata
impl Debug for PgTypeMetadata
Source§impl Hash for PgTypeMetadata
impl Hash for PgTypeMetadata
Source§impl PartialEq for PgTypeMetadata
impl PartialEq for PgTypeMetadata
impl Eq for PgTypeMetadata
impl StructuralPartialEq for PgTypeMetadata
Auto Trait Implementations§
impl Freeze for PgTypeMetadata
impl RefUnwindSafe for PgTypeMetadata
impl Send for PgTypeMetadata
impl Sync for PgTypeMetadata
impl Unpin for PgTypeMetadata
impl UnwindSafe for PgTypeMetadata
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
Source§unsafe fn clone_to_uninit(&self, dst: *mut T)
unsafe fn clone_to_uninit(&self, dst: *mut T)
🔬This is a nightly-only experimental API. (
clone_to_uninit
)Source§impl<T> Downcast for Twhere
T: Any,
impl<T> Downcast for Twhere
T: Any,
Source§fn into_any(self: Box<T>) -> Box<dyn Any>
fn into_any(self: Box<T>) -> Box<dyn Any>
Convert
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(where Trait: Downcast
) to Box<dyn Any>
. Box<dyn Any>
can
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where ConcreteType
implements Trait
.Source§fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>
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Convert
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.Source§fn as_any(&self) -> &(dyn Any + 'static)
fn as_any(&self) -> &(dyn Any + 'static)
Convert
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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
Convert
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(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
’s.