Struct ColumnType

pub struct ColumnType {
    pub datum_type: DatumType,
    pub odbc_type: SqlDataType,
    pub nullable: bool,
    pub name: String,
}

Description of column type, name and nullability properties used to represent row schema.

Fields

datum_type: DatumType

Supported type of datum that this column holds. See DatumType documentation of usage of corresponding Column::into_*() functions.

odbc_type: SqlDataType

ODBC SQL Data Type as returned by the driver.

nullable: bool

true if column can contain NULL value. If false the Column::into_*() functions should always return Some value.

name: String

Name of the column as provided by the ODBC driver.

Trait Implementations

impl Clone for ColumnType

fn clone(&self) -> ColumnType

Returns a duplicate of the value.

const fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ColumnType

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

Formats the value using the given formatter.

impl PartialEq for ColumnType

fn eq(&self, other: &ColumnType) -> bool

Tests for self and other values to be equal, and is used by ==.

const fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl TryFrom<ColumnDescriptor> for ColumnType

type Error = UnsupportedSqlDataType

The type returned in the event of a conversion error.

fn try_from( column_descriptor: ColumnDescriptor, ) -> Result<ColumnType, UnsupportedSqlDataType>

Performs the conversion.

impl StructuralPartialEq for ColumnType