Trait ExpressionNames 

pub trait ExpressionNames {
    // Required methods
    fn column(&self, attribute: i64) -> Result<String, SQLError>;
    fn routine(&self, oid: i64) -> Result<Vec<String>, SQLError>;
    fn type_name(&self, oid: i64, modifier: i64) -> Result<String, SQLError>;

    // Provided methods
    fn relation_name(&self) -> Result<String, SQLError> { ... }
    fn collation(&self, oid: i64) -> Result<Vec<String>, SQLError> { ... }
    fn value_catalog(&self) -> Option<&dyn SQLValueCatalog> { ... }
    fn standard_conforming_strings(&self) -> Result<bool, SQLError> { ... }
    fn parameter(&self, number: i64) -> Result<String, SQLError> { ... }
}

Required Methods

fn column(&self, attribute: i64) -> Result<String, SQLError>

fn routine(&self, oid: i64) -> Result<Vec<String>, SQLError>

fn type_name(&self, oid: i64, modifier: i64) -> Result<String, SQLError>

Provided Methods

fn relation_name(&self) -> Result<String, SQLError>

The current local relation name used by a whole-row Var.

fn collation(&self, oid: i64) -> Result<Vec<String>, SQLError>

Current SQL-visible name of a selected collation identity.

fn value_catalog(&self) -> Option<&dyn SQLValueCatalog>

Type identities and current output metadata for admitted physical constants.

fn standard_conforming_strings(&self) -> Result<bool, SQLError>

The invoking session’s string-literal rule for reconstructed SQL.

fn parameter(&self, number: i64) -> Result<String, SQLError>

SQL spelling of an external parameter after the renderer validates its positive number.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors