Enum Error 

pub enum Error {
    Params {
        expected: usize,
        actual: usize,
    },
    Pool(PoolError),
    Query(Error),
    Role(Error),
    InvalidJson,
    Create(CreatePoolError),
    Tls(Error),
}

Available on crate feature deadpool only.

Errors related to pooling or running queries against the Postgres database

Variants

Params

Parameters did not match the number of parameters inferred by statement preparation.

Fields

expected: usize

number of expected params

actual: usize

number of actual params in the request after validation

Pool(PoolError)

Bubbled-up deadpool_postgres connection pool errors.

Query(Error)

Bubbled-up tokio_postgres SQL-level errors within a connection.

Role(Error)

ROLE-setting errors before connections are returned to users.

InvalidJson

JSON-formatted rows could not be properly converted between Postgres’ built-in to_json() output and serde_json::Value. If this error occurs, it is because of an AS-induced name collision!

Create(CreatePoolError)

Bubbled-up configuration errors from the underlying deadpool_postgres configuration.

Tls(Error)

Available on crate feature ssl-native-tls only.

TLS errors during setup of native_tls SSL connectors.

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

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.

impl From<CreatePoolError<ConfigError, Error>> for Error

fn from(source: CreatePoolError) -> Self

Converts to this type from the input type.

impl From<Error> for Error

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<Error> for Error

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<Error> for Status

fn from(error: Error) -> Self

Converts to this type from the input type.

impl From<PoolError<Error>> for Error

fn from(source: PoolError) -> Self

Converts to this type from the input type.