Enum FdwError 

pub enum FdwError {
    MissingOption(String),
    UnknownWrapper(String),
    NotFound(String),
    Io(String),
    Custom(String),
}

Errors raised by wrappers. Wrapper-specific subclasses collapse into Custom so the runtime can surface them uniformly.

Variants

MissingOption(String)

A required option was not set on the server or foreign table.

UnknownWrapper(String)

The wrapper kind referenced by CREATE SERVER is not registered.

NotFound(String)

The foreign table / server referenced by a statement doesn’t exist.

Io(String)

I/O or transport failure (file read, HTTP fetch, database call).

Custom(String)

Arbitrary wrapper-specific error.

Trait Implementations

impl Debug for FdwError

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Display for FdwError

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Error for FdwError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

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

Provides type-based access to context intended for error reports.