Struct Citext

pub struct Citext;

Available on crate feature postgres_backend only.

The Citext SQL type. This is a PostgreSQL specific type.

Strings must be valid UTF-8.

ToSql impls

• String
• &str

FromSql impls

• String

Trait Implementations

impl<'__expr, '__expr2> AsExpression<Citext> for &'__expr2 &'__expr String

type Expression = Bound<Citext, &'__expr2 &'__expr String>

The expression being returned

fn as_expression(self) -> Self::Expression

Perform the conversion

impl<'__expr, '__expr2> AsExpression<Citext> for &'__expr2 &'__expr str

type Expression = Bound<Citext, &'__expr2 &'__expr str>

The expression being returned

fn as_expression(self) -> Self::Expression

Perform the conversion

impl<'__expr> AsExpression<Citext> for &'__expr String

type Expression = Bound<Citext, &'__expr String>

The expression being returned

fn as_expression(self) -> Self::Expression

Perform the conversion

impl<'__expr> AsExpression<Citext> for &'__expr str

type Expression = Bound<Citext, &'__expr str>

The expression being returned

fn as_expression(self) -> Self::Expression

Perform the conversion

impl AsExpression<Citext> for String

type Expression = Bound<Citext, String>

The expression being returned

fn as_expression(self) -> Self::Expression

Perform the conversion

impl Clone for Citext

fn clone(&self) -> Citext

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Citext

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

Formats the value using the given formatter.

impl Default for Citext

fn default() -> Citext

Returns the “default value” for a type.

impl FromSql<Citext, Pg> for String

fn from_sql(value: PgValue<'_>) -> Result<Self>

See the trait documentation.

fn from_nullable_sql(bytes: Option<DB::RawValue<'_>>) -> Result<Self>

A specialized variant of from_sql for handling null values.

impl HasSqlType<Citext> for Pg

fn metadata(lookup: &mut Self::MetadataLookup) -> PgTypeMetadata

Fetch the metadata for the given type

impl QueryId for Citext

const HAS_STATIC_QUERY_ID: bool = true

Can the SQL generated by Self be uniquely identified by its type?

type QueryId = Citext

A type which uniquely represents Self in a SQL query.

fn query_id() -> Option<TypeId>

Returns the type id of Self::QueryId if Self::HAS_STATIC_QUERY_ID. Returns None otherwise.

impl SqlType for Citext

type IsNull = NotNull

Is this type nullable?

impl ToSql<Citext, Pg> for String

fn to_sql<'b>(&'b self, out: &mut Output<'b, '_, Pg>) -> Result

See the trait documentation.

impl ToSql<Citext, Pg> for str

fn to_sql<'b>(&'b self, out: &mut Output<'b, '_, Pg>) -> Result

See the trait documentation.

impl Copy for Citext

impl SingleValue for Citext