Enum TvpWireType 

#[non_exhaustive]
pub enum TvpWireType {
    Bit,
    Int {
        size: u8,
    },
    Float {
        size: u8,
    },
    Decimal {
        precision: u8,
        scale: u8,
    },
    NVarChar {
        max_length: u16,
    },
    VarChar {
        max_length: u16,
    },
    VarBinary {
        max_length: u16,
    },
    Guid,
    Date,
    Time {
        scale: u8,
    },
    DateTime2 {
        scale: u8,
    },
    DateTimeOffset {
        scale: u8,
    },
    Money,
    SmallMoney,
    DateTime,
    SmallDateTime,
    Xml,
}

TVP column type for wire encoding.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Bit

BIT type.

Int

Integer type with size (1, 2, 4, or 8 bytes).

Fields

size: u8

Size in bytes.

Float

Floating point type with size (4 or 8 bytes).

Fields

size: u8

Size in bytes.

Decimal

Decimal/Numeric type.

Fields

precision: u8

Maximum number of digits.

scale: u8

Number of digits after decimal point.

NVarChar

Unicode string (NVARCHAR).

Fields

max_length: u16

Maximum length in bytes. Use 0xFFFF for MAX.

VarChar

ASCII string (VARCHAR).

Fields

max_length: u16

Maximum length in bytes. Use 0xFFFF for MAX.

VarBinary

Binary data (VARBINARY).

Fields

max_length: u16

Maximum length in bytes. Use 0xFFFF for MAX.

Guid

UNIQUEIDENTIFIER (UUID).

Date

DATE type.

Time

TIME type with scale.

Fields

scale: u8

Fractional seconds precision (0-7).

DateTime2

DATETIME2 type with scale.

Fields

scale: u8

Fractional seconds precision (0-7).

DateTimeOffset

DATETIMEOFFSET type with scale.

Fields

scale: u8

Fractional seconds precision (0-7).

Money

MONEY type (8-byte scaled integer, scale 4 implicit, via MONEYN / 0x6E).

SmallMoney

SMALLMONEY type (4-byte scaled integer, scale 4 implicit, via MONEYN / 0x6E).

DateTime

Legacy DATETIME type (8 bytes: days since 1900 + 1/300s ticks, via DATETIMEN / 0x6F).

SmallDateTime

SMALLDATETIME type (4 bytes: days since 1900 + minutes, via DATETIMEN / 0x6F).

Xml

XML type.

Implementations

impl TvpWireType

pub const fn type_id(&self) -> u8

Get the TDS type ID.

pub fn encode_type_info(&self, buf: &mut BytesMut)

Encode the TYPE_INFO for this column type.

String columns are declared with the default Latin1_General_CI_AS collation; use encode_type_info_with_collation to declare the server’s actual collation.

pub fn encode_type_info_with_collation( &self, buf: &mut BytesMut, collation: Option<&Collation>, )

Encode the TYPE_INFO for this column type, declaring collation for string columns.

The collation declared here tells the server which codepage VARCHAR cell bytes are in. It must match the encoding used for the cell data (see encode_tvp_varchar_with_collation). None falls back to DEFAULT_COLLATION (Latin1_General_CI_AS / Windows-1252).

Trait Implementations

impl Clone for TvpWireType

fn clone(&self) -> TvpWireType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for TvpWireType

impl Debug for TvpWireType

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

Formats the value using the given formatter.

impl Eq for TvpWireType

impl PartialEq for TvpWireType

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

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

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 StructuralPartialEq for TvpWireType