Enum PostgresValue 

pub enum PostgresValue<'a> {
    Smallint(i16),
    Integer(i32),
    Bigint(i64),
    Real(f32),
    DoublePrecision(f64),
    Text(Cow<'a, str>),
    Bytea(Cow<'a, [u8]>),
    Boolean(bool),
    Enum(Box<dyn PostgresEnum>),
    Array(Vec<PostgresValue<'a>>),
    Null,
}

Represents a PostgreSQL value.

This enum provides type-safe value handling for PostgreSQL operations.

Examples

use drizzle_postgres::values::PostgresValue;

// Integer conversion
let int_val: PostgresValue<'_> = 42i32.into();
assert!(matches!(int_val, PostgresValue::Integer(42)));

// String conversion
let str_val: PostgresValue<'_> = "hello".into();
assert!(matches!(str_val, PostgresValue::Text(_)));

// Boolean conversion
let bool_val: PostgresValue<'_> = true.into();
assert!(matches!(bool_val, PostgresValue::Boolean(true)));

Variants

Smallint(i16)

SMALLINT values (16-bit signed integer)

Integer(i32)

INTEGER values (32-bit signed integer)

Bigint(i64)

BIGINT values (64-bit signed integer)

Real(f32)

REAL values (32-bit floating point)

DoublePrecision(f64)

DOUBLE PRECISION values (64-bit floating point)

Text(Cow<'a, str>)

TEXT, VARCHAR, CHAR values

Bytea(Cow<'a, [u8]>)

BYTEA values (binary data)

Boolean(bool)

BOOLEAN values

Enum(Box<dyn PostgresEnum>)

Native PostgreSQL ENUM values

Array(Vec<PostgresValue<'a>>)

Array of any PostgreSQL type

Null

NULL value

Implementations

impl<'a> PostgresValue<'a>

pub const fn is_null(&self) -> bool

Returns true if this value is NULL.

pub const fn as_bool(&self) -> Option<bool>

Returns the boolean value if this is BOOLEAN.

pub const fn as_i16(&self) -> Option<i16>

Returns the i16 value if this is SMALLINT.

pub const fn as_i32(&self) -> Option<i32>

Returns the i32 value if this is INTEGER.

pub const fn as_i64(&self) -> Option<i64>

Returns the i64 value if this is BIGINT.

pub const fn as_f32(&self) -> Option<f32>

Returns the f32 value if this is REAL.

pub const fn as_f64(&self) -> Option<f64>

Returns the f64 value if this is DOUBLE PRECISION.

pub fn as_str(&self) -> Option<&str>

Returns the text value if this is TEXT.

pub fn as_bytes(&self) -> Option<&[u8]>

Returns the bytea value if this is BYTEA.

pub fn as_enum(&self) -> Option<&dyn PostgresEnum>

Returns the enum value if this is a PostgreSQL enum.

pub fn as_array(&self) -> Option<&[PostgresValue<'a>]>

Returns the array elements if this is an ARRAY.

pub fn into_owned(self) -> OwnedPostgresValue

Converts this value into an owned representation.

pub fn convert<T: FromPostgresValue>(self) -> Result<T, DrizzleError>

Convert this PostgreSQL value to a Rust type using the FromPostgresValue trait.

pub fn convert_ref<T: FromPostgresValue>(&self) -> Result<T, DrizzleError>

Convert a reference to this PostgreSQL value to a Rust type.

Trait Implementations

impl<'a> Clone for PostgresValue<'a>

fn clone(&self) -> PostgresValue<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for PostgresValue<'a>

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

Formats the value using the given formatter.

impl<'a> Default for PostgresValue<'a>

fn default() -> PostgresValue<'a>

Returns the “default value” for a type.

impl<'a> Display for PostgresValue<'a>

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

Formats the value using the given formatter.

impl<'a> From<&'a [PostgresValue<'a>]> for PostgresValue<'a>

fn from(value: &'a [PostgresValue<'a>]) -> Self

Converts to this type from the input type.

impl<'a> From<&'a [u8]> for PostgresValue<'a>

fn from(value: &'a [u8]) -> Self

Converts to this type from the input type.

impl<'a> From<&'a OwnedPostgresValue> for PostgresValue<'a>

fn from(value: &'a OwnedPostgresValue) -> Self

Converts to this type from the input type.

impl<'a> From<&'a PostgresValue<'a>> for Cow<'a, PostgresValue<'a>>

fn from(value: &'a PostgresValue<'a>) -> Self

Converts to this type from the input type.

impl<'a> From<&PostgresValue<'a>> for OwnedPostgresValue

fn from(value: &PostgresValue<'a>) -> Self

Converts to this type from the input type.

impl<'a> From<&'a String> for PostgresValue<'a>

fn from(value: &'a String) -> Self

Converts to this type from the input type.

impl<'a> From<&'a bool> for PostgresValue<'a>

fn from(value: &'a bool) -> Self

Converts to this type from the input type.

impl<'a> From<&'a f32> for PostgresValue<'a>

fn from(value: &'a f32) -> Self

Converts to this type from the input type.

impl<'a> From<&'a f64> for PostgresValue<'a>

fn from(value: &'a f64) -> Self

Converts to this type from the input type.

impl<'a> From<&'a i16> for PostgresValue<'a>

fn from(value: &'a i16) -> Self

Converts to this type from the input type.

impl<'a> From<&'a i32> for PostgresValue<'a>

fn from(value: &'a i32) -> Self

Converts to this type from the input type.

impl<'a> From<&'a i64> for PostgresValue<'a>

fn from(value: &'a i64) -> Self

Converts to this type from the input type.

impl<'a> From<&'a i8> for PostgresValue<'a>

fn from(value: &'a i8) -> Self

Converts to this type from the input type.

impl<'a> From<&'a isize> for PostgresValue<'a>

fn from(value: &'a isize) -> Self

Converts to this type from the input type.

impl<'a> From<&'a str> for PostgresValue<'a>

fn from(value: &'a str) -> Self

Converts to this type from the input type.

impl<'a> From<&'a u16> for PostgresValue<'a>

fn from(value: &'a u16) -> Self

Converts to this type from the input type.

impl<'a> From<&'a u32> for PostgresValue<'a>

fn from(value: &'a u32) -> Self

Converts to this type from the input type.

impl<'a> From<&'a u64> for PostgresValue<'a>

fn from(value: &'a u64) -> Self

Converts to this type from the input type.

impl<'a> From<&'a u8> for PostgresValue<'a>

fn from(value: &'a u8) -> Self

Converts to this type from the input type.

impl<'a> From<&'a usize> for PostgresValue<'a>

fn from(value: &'a usize) -> Self

Converts to this type from the input type.

impl<'a> From<Cow<'a, [u8]>> for PostgresValue<'a>

fn from(value: Cow<'a, [u8]>) -> Self

Converts to this type from the input type.

impl<'a> From<Cow<'a, str>> for PostgresValue<'a>

fn from(value: Cow<'a, str>) -> Self

Converts to this type from the input type.

impl<'a, T> From<Option<T>> for PostgresValue<'a>

where T: TryInto<PostgresValue<'a>>,

fn from(value: Option<T>) -> Self

Converts to this type from the input type.

impl<'a> From<OwnedPostgresValue> for PostgresValue<'a>

fn from(value: OwnedPostgresValue) -> Self

Converts to this type from the input type.

impl<'a> From<PostgresValue<'a>> for Cow<'a, PostgresValue<'a>>

fn from(value: PostgresValue<'a>) -> Self

Converts to this type from the input type.

impl<'a> From<PostgresValue<'a>> for OwnedPostgresValue

fn from(value: PostgresValue<'a>) -> Self

Converts to this type from the input type.

impl<'a> From<PostgresValue<'a>> for SQL<'a, PostgresValue<'a>>

fn from(value: PostgresValue<'a>) -> Self

Converts to this type from the input type.

impl<'a> From<String> for PostgresValue<'a>

fn from(value: String) -> Self

Converts to this type from the input type.

impl<'a> From<Vec<PostgresValue<'a>>> for PostgresValue<'a>

fn from(value: Vec<PostgresValue<'a>>) -> Self

Converts to this type from the input type.

impl<'a> From<Vec<u8>> for PostgresValue<'a>

fn from(value: Vec<u8>) -> Self

Converts to this type from the input type.

impl<'a> From<bool> for PostgresValue<'a>

fn from(value: bool) -> Self

Converts to this type from the input type.

impl<'a> From<f32> for PostgresValue<'a>

fn from(value: f32) -> Self

Converts to this type from the input type.

impl<'a> From<f64> for PostgresValue<'a>

fn from(value: f64) -> Self

Converts to this type from the input type.

impl<'a> From<i16> for PostgresValue<'a>

fn from(value: i16) -> Self

Converts to this type from the input type.

impl<'a> From<i32> for PostgresValue<'a>

fn from(value: i32) -> Self

Converts to this type from the input type.

impl<'a> From<i64> for PostgresValue<'a>

fn from(value: i64) -> Self

Converts to this type from the input type.

impl<'a> From<i8> for PostgresValue<'a>

fn from(value: i8) -> Self

Converts to this type from the input type.

impl<'a> From<isize> for PostgresValue<'a>

fn from(value: isize) -> Self

Converts to this type from the input type.

impl<'a> From<u16> for PostgresValue<'a>

fn from(value: u16) -> Self

Converts to this type from the input type.

impl<'a> From<u32> for PostgresValue<'a>

fn from(value: u32) -> Self

Converts to this type from the input type.

impl<'a> From<u64> for PostgresValue<'a>

fn from(value: u64) -> Self

Converts to this type from the input type.

impl<'a> From<u8> for PostgresValue<'a>

fn from(value: u8) -> Self

Converts to this type from the input type.

impl<'a> From<usize> for PostgresValue<'a>

fn from(value: usize) -> Self

Converts to this type from the input type.

impl<'a> PartialEq for PostgresValue<'a>

fn eq(&self, other: &PostgresValue<'a>) -> 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<'a> SQLParam for PostgresValue<'a>

const DIALECT: Dialect = drizzle_core::dialect::Dialect::PostgreSQL

The SQL dialect for this parameter type Default is SQLite (uses ? placeholders)

impl<'a, Table, Query> ToSQL<'a, PostgresValue<'a>> for CTEView<'a, Table, Query>

where Query: ToSQL<'a, PostgresValue<'a>>,

ToSQL implementation renders just the CTE name for use in FROM clauses. Unlike aliased tables (which render as “original” AS “alias”), CTEs should just render as their name since they’re already defined in the WITH clause.

fn to_sql(&self) -> SQL<'a, PostgresValue<'a>>

fn alias(&self, alias: &'static str) -> SQL<'a, V>

impl<'a, Schema, State, Table> ToSQL<'a, PostgresValue<'a>> for QueryBuilder<'a, Schema, State, Table>

fn to_sql(&self) -> SQL<'a, PostgresValue<'a>>

fn alias(&self, alias: &'static str) -> SQL<'a, V>

impl<'a> TryFrom<&'a PostgresValue<'a>> for &'a [PostgresValue<'a>]

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: &'a PostgresValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<&'a PostgresValue<'a>> for &'a [u8]

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: &'a PostgresValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<&'a PostgresValue<'a>> for &'a str

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: &'a PostgresValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<PostgresValue<'a>> for String

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: PostgresValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<PostgresValue<'a>> for Vec<PostgresValue<'a>>

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: PostgresValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<PostgresValue<'a>> for Vec<u8>

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: PostgresValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<PostgresValue<'a>> for bool

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: PostgresValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<PostgresValue<'a>> for f32

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: PostgresValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<PostgresValue<'a>> for f64

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: PostgresValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<PostgresValue<'a>> for i16

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: PostgresValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<PostgresValue<'a>> for i32

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: PostgresValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<PostgresValue<'a>> for i64

type Error = DrizzleError

The type returned in the event of a conversion error.

fn try_from(value: PostgresValue<'a>) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> StructuralPartialEq for PostgresValue<'a>