[−][src]Struct diesel::pg::PgMetadataLookup

pub struct PgMetadataLookup { /* fields omitted */ }

Determines the OID of types at runtime

Methods

impl PgMetadataLookup
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pub fn lookup_type(&self, type_name: &str) -> PgTypeMetadata
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Determine the type metadata for the given type_name

This function should only be used for user defined types, or types which come from an extension. This function may perform a SQL query to look up the type. For built-in types, a static OID should be preferred.

Auto Trait Implementations

Blanket Implementations

impl<T> IntoSql for T
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fn into_sql<T>(self) -> AsExprOf<Self, T> where
    Self: AsExpression<T> + Sized, 
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Convert self to an expression for Diesel's query builder. Read more

fn as_sql<'a, T>(&'a self) -> AsExprOf<&'a Self, T> where
    &'a Self: AsExpression<T>, 
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Convert &self to an expression for Diesel's query builder. Read more

impl<T> From for T
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impl<T, U> Into for T where
    U: From<T>, 
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impl<T, U> TryFrom for T where
    T: From<U>, 
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type Error = !

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

The type returned in the event of a conversion error.

impl<T> Borrow for T where
    T: ?Sized, 
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impl<T> BorrowMut for T where
    T: ?Sized, 
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impl<T, U> TryInto for T where
    U: TryFrom<T>, 
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type Error = <U as TryFrom<T>>::Error

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

The type returned in the event of a conversion error.

impl<T> Any for T where
    T: 'static + ?Sized, 
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