Enum CastTarget 

pub enum CastTarget {
    Int,
    BigInt,
    Float,
    Text,
    Bool,
    Vector,
    Date,
    Timestamp,
    Interval,
    Timestamptz,
    Json,
    Jsonb,
    RegType,
    RegClass,
    TextArray,
    IntArray,
    BigIntArray,
    TsVector,
    TsQuery,
    Uuid,
    Bytea,
    Named(String),
}

Variants

Int

BigInt

Float

Text

Bool

Vector

Date

Timestamp

Interval

v7.9.25 — ::INTERVAL and ::TIMESTAMPTZ. mailrs follow-up H3a. Engine reuses the existing runtime-interval / timestamp paths (parse the text input, return the matching Value).

Timestamptz

Json

v7.9.25 — ::JSON and ::JSONB. SPG already has both types (v7.9.0); the cast just routes Text→Json with the requested OID for the wire layer.

Jsonb

RegType

v7.9.26 — ::regtype / ::regclass. Parsed for PG dump compatibility; engine surfaces as Unsupported with a hint to use SHOW TABLES or spg_table_ddl. mailrs F3b.

RegClass

TextArray

v7.10.11 — ::TEXT[]. Engine decodes the LHS Text into the PG external array form {a,b,NULL}.

IntArray

v7.11.13 — ::INT[] / ::BIGINT[]. Decodes PG external {1,2,3} or widens a TextArray whose elements are integer-shaped.

BigIntArray

TsVector

v7.12.0 — ::tsvector / ::tsquery. Decodes the PG external form text representation. Used by pg_dump output and by WHERE col @@ 'term'::tsquery literal patterns.

TsQuery

Uuid

v7.17.0 — ::uuid. Decodes the LHS Text via spg_storage::parse_uuid_str (accepts canonical hyphenated, unhyphenated, uppercase, and brace-wrapped forms); malformed input is a SQL error.

Bytea

v7.18 — ::bytea. Decodes the LHS Text via PG’s hex form ('\xdeadbeef') or escape form ('\x05\x00'); Bytes inputs pass through unchanged. Closes the mailrs D-pre #3 reverse-acceptance gap — anywhere a PG schema writes expr::bytea, SPG now matches.

Named(String)

v7.37.5 ship triage — generic cast target for the long tail of PG type names the parser meets in expr::TYPE shapes that don’t deserve their own enum variant. The engine routes these through column_type_to_data_type + the existing typed coerce_value dispatch, so adding a new PG type to SPG implicitly adds its cast-target form too — no parser change per type. The string carries the lowercase PG type ident (e.g. "point", "int4multirange"); the engine errors with a clear message when the type isn’t known.

Trait Implementations

impl Clone for CastTarget

fn clone(&self) -> CastTarget

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CastTarget

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

Formats the value using the given formatter.

impl Display for CastTarget

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

Formats the value using the given formatter.

impl Eq for CastTarget

impl PartialEq for CastTarget

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for CastTarget