Enum Kind 

#[non_exhaustive]
pub enum Kind {
    Int,
    BigInt,
    SmallInt,
    Bool,
    Text,
    Bytes,
    Float,
    Date,
    Timestamp,
    Timestamptz,
    Json,
    Uuid,
    Time,
    Year,
    TimeTz,
    Money,
    Range,
    Hstore,
    Numeric,
    Vector,
    TsVector,
    Null,
}

Identity tag for each column type the adapter currently understands. Matches the subset of spg_storage::DataType the adapter Encode/Decode coverage extends to.

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.

Int

INT / 4-byte signed integer.

BigInt

BIGINT / 8-byte signed integer.

SmallInt

SMALLINT / 2-byte signed integer.

Bool

BOOLEAN.

Text

TEXT / VARCHAR (text body — encoding agnostic).

Bytes

BYTEA (raw bytes).

Float

FLOAT (IEEE-754 double).

Date

DATE.

Timestamp

TIMESTAMP.

Timestamptz

TIMESTAMPTZ.

Json

JSON / JSONB (text-backed JSON).

Uuid

v7.17.0 — UUID (128-bit identifier, RFC 4122 byte order). Bridges decode into uuid::Uuid or String (canonical hyphenated lowercase form).

Time

v7.17.0 Phase 3.P0-32 — TIME (without time zone). i64 microseconds since 00:00:00. Bridges decode into String (canonical HH:MM:SS[.ffffff] form).

Year

v7.17.0 Phase 3.P0-33 — MySQL YEAR. u16 in 1901..=2155 plus zero-year sentinel. Bridges decode into i32 (wire shape collapses to INT4) or String (4-digit zero-pad).

TimeTz

v7.17.0 Phase 3.P0-34 — PG TIMETZ (TIME WITH TIME ZONE). i64 us since 00:00:00 local + i32 offset_secs. Bridges decode into String (canonical HH:MM:SS[.ffffff]±HH[:MM]).

Money

v7.17.0 Phase 3.P0-35 — PG MONEY — i64 cents. Bridges decode into String (canonical en_US $N,NNN.CC) or i64 (raw cents).

Range

v7.17.0 Phase 3.P0-38 — PG range types (int4range / int8range / numrange / tsrange / tstzrange / daterange). Bridges decode into String (canonical [a,b)).

Hstore

v7.17.0 Phase 3.P0-39 — PG hstore extension type. Bridges decode into String (canonical "k"=>"v") or HashMap<String, Option<String>> (in the language dialect that ships the hstore feature).

Numeric

v7.17.0 Phase 3.P0-67 — PG NUMERIC(p, s) / DECIMAL(p, s) — exact-decimal fixed-point. Stored engine-side as (scaled: i128, scale: u8). Bridges decode into bigdecimal::BigDecimal (under the bigdecimal feature) or String (canonical PG decimal text).

Vector

v7.17.0 Phase 3.P0-68 — pgvector VECTOR(N) (any of the three storage encodings: default f32, USING SQ8, USING HALF). Bridges decode into Vec<f32> or String (canonical pgvector external form '[1, 2.5, -3]'). Quantised storage variants (Sq8Vector / HalfVector) dequantise to f32 at the adapter boundary.

TsVector

v7.17.0 Phase 3.P0-68 — PG TSVECTOR (full-text search document representation). Bridges decode into String (canonical PG external form 'word1':1 'word2':2,3A'). Encode is intentionally not supported — clients build tsvector via the to_tsvector SQL function, not by binding raw lexeme lists.

Null

Unknown / type-erased — used for parameters that the adapter binds without a fixed column-side type yet (e.g. the first bind of a fresh parameter index).

Trait Implementations

impl Clone for Kind

fn clone(&self) -> Kind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Kind

impl Debug for Kind

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

Formats the value using the given formatter.

impl Eq for Kind

impl PartialEq for Kind

fn eq(&self, other: &Kind) -> 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 Kind