Struct diesel::pg::sql_types::Array

pub struct Array<ST: 'static>(_);

Available on crate feature postgres_backend only.

The Array SQL type.

This wraps another type to represent a SQL array of that type. Multidimensional arrays are not supported.

ToSql impls

• Vec<T> for any T which implements ToSql<ST>
• &[T] for any T which implements ToSql<ST>

FromSql impls

• Vec<T> for any T which implements ToSql<ST>

Trait Implementations

impl<'a, 'b, ST: 'static, T> AsExpression<Array<ST>> for &'a &'b [T]

type Expression = Bound<Array<ST>, &'a &'b [T]>

The expression being returned

fn as_expression(self) -> Self::Expression

Perform the conversion

impl<'a, 'b, ST: 'static, T> AsExpression<Array<ST>> for &'a &'b Vec<T>

type Expression = Bound<Array<ST>, &'a &'b Vec<T, Global>>

The expression being returned

fn as_expression(self) -> Self::Expression

Perform the conversion

impl<'a, 'b, ST: 'static, T> AsExpression<Array<ST>> for &'a [T]

type Expression = Bound<Array<ST>, &'a [T]>

The expression being returned

fn as_expression(self) -> Self::Expression

Perform the conversion

impl<'a, 'b, ST: 'static, T> AsExpression<Array<ST>> for &'a Vec<T>

type Expression = Bound<Array<ST>, &'a Vec<T, Global>>

The expression being returned

fn as_expression(self) -> Self::Expression

Perform the conversion

impl<'a, 'b, ST: 'static, T> AsExpression<Array<ST>> for Vec<T>

type Expression = Bound<Array<ST>, Vec<T, Global>>

The expression being returned

fn as_expression(self) -> Self::Expression

Perform the conversion

impl<ST: Clone + 'static> Clone for Array<ST>

fn clone(&self) -> Array<ST>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<ST: Debug + 'static> Debug for Array<ST>

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

Formats the value using the given formatter.

impl<ST: Default + 'static> Default for Array<ST>

fn default() -> Array<ST>

Returns the “default value” for a type.

impl<T, ST> FromSql<Array<ST>, Pg> for Vec<T>where T: FromSql<ST, Pg>,

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

See the trait documentation.

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

A specialized variant of from_sql for handling null values.

impl<T> HasSqlType<Array<T>> for Pgwhere Pg: HasSqlType<T>,

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

Fetch the metadata for the given type

impl<ST: 'static + QueryId> QueryId for Array<ST>

type QueryId = Array<<ST as QueryId>::QueryId>

A type which uniquely represents Self in a SQL query.

const HAS_STATIC_QUERY_ID: bool = _

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

fn query_id() -> Option<TypeId>

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

impl<ST: 'static> SqlType for Array<ST>

type IsNull = NotNull

Is this type nullable?

impl<ST, T> ToSql<Array<ST>, Pg> for [T]where Pg: HasSqlType<ST>, T: ToSql<ST, Pg>,

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

See the trait documentation.

impl<ST, T> ToSql<Array<ST>, Pg> for Vec<T>where ST: 'static, [T]: ToSql<Array<ST>, Pg>, T: Debug,

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

See the trait documentation.

impl<ST: Copy + 'static> Copy for Array<ST>

impl<ST: 'static> SingleValue for Array<ST>

impl<T: SqlOrd> SqlOrd for Array<T>

Available on crate feature postgres only.