Enum PgType 

pub enum PgType {
    Boolean,
    SmallInt,
    Integer,
    BigInt,
    Real,
    DoublePrecision,
    Numeric,
    Text,
    Char(u32),
    VarChar(u32),
    Bytea,
    Date,
    Time,
    TimeTz,
    Timestamp,
    TimestampTz,
    Interval,
    Uuid,
    Json,
    Jsonb,
    Array(Box<Self>),
    Custom(String),
}

PostgreSQL data types.

Variants

Boolean

SmallInt

Integer

BigInt

Real

DoublePrecision

Numeric

Text

Char(u32)

VarChar(u32)

Bytea

Date

Time

TimeTz

Timestamp

TimestampTz

Interval

Uuid

Json

Jsonb

Array(Box<Self>)

Custom(String)

Implementations

impl PgType

pub fn sql_name(&self) -> String

The SQL type name, ready to splice into DDL text.

pub fn from_arrow_type(dt: &DataType) -> Self

Infer a PostgreSQL type from an Arrow data type.

pub fn to_arrow_type(&self) -> DataType

Map this PostgreSQL type to the Arrow [DataType] a transform engine should treat as its “seen” type for a column of this DB type - the reverse of Self::from_arrow_type. Timestamps use microsecond precision (Postgres’ native resolution); Numeric maps to Decimal128(38, 9) (a wide, safe placeholder).

pub fn from_json_value(value: &Value) -> Self

Infer a PostgreSQL type from a decoded JSON value - string sniffing (UUID/timestamp/date/embedded-JSON detection) included.

pub fn can_widen_to(&self, other: &Self) -> bool

Whether this type can be losslessly widened to other.

pub fn wider_type(&self, other: &Self) -> Self

The wider of self and other - falls back to Jsonb for genuinely incompatible types rather than erroring.

Trait Implementations

impl Clone for PgType

fn clone(&self) -> PgType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PgType

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for PgType

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for PgType

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

Formats the value using the given formatter.

impl Hash for PgType

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for PgType

fn eq(&self, other: &PgType) -> 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 Serialize for PgType

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for PgType

impl StructuralPartialEq for PgType