Struct mz_repr::adt::varchar::VarChar

pub struct VarChar<S: AsRef<str>>(pub S);

A marker type indicating that a Rust string should be interpreted as a ScalarType::VarChar.

Tuple Fields

0: S

Trait Implementations

impl<S> AsColumnType for VarChar<S>

where S: AsRef<str>,

fn as_column_type() -> ColumnType

The SQL column type of this Rust type

impl<S: Clone + AsRef<str>> Clone for VarChar<S>

fn clone(&self) -> VarChar<S>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a, E> DatumType<'a, E> for VarChar<&'a str>

fn nullable() -> bool

Whether this Rust type can represent NULL values

fn fallible() -> bool

Whether this Rust type can represent errors

fn try_from_result( res: Result<Datum<'a>, E>, ) -> Result<Self, Result<Datum<'a>, E>>

Try to convert a Result whose Ok variant is a Datum into this native Rust type (Self). If it fails the error variant will contain the original result.

fn into_result(self, _temp_storage: &'a RowArena) -> Result<Datum<'a>, E>

Convert this Rust type into a Result containing a Datum, or an error

impl<'a, E> DatumType<'a, E> for VarChar<String>

fn nullable() -> bool

Whether this Rust type can represent NULL values

fn fallible() -> bool

Whether this Rust type can represent errors

fn try_from_result( res: Result<Datum<'a>, E>, ) -> Result<Self, Result<Datum<'a>, E>>

Try to convert a Result whose Ok variant is a Datum into this native Rust type (Self). If it fails the error variant will contain the original result.

fn into_result(self, temp_storage: &'a RowArena) -> Result<Datum<'a>, E>

Convert this Rust type into a Result containing a Datum, or an error

impl<S: Debug + AsRef<str>> Debug for VarChar<S>

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

Formats the value using the given formatter.

impl<S: Hash + AsRef<str>> Hash for VarChar<S>

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<S: Ord + AsRef<str>> Ord for VarChar<S>

fn cmp(&self, other: &VarChar<S>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized + PartialOrd,

Restrict a value to a certain interval.

impl<S: PartialEq + AsRef<str>> PartialEq for VarChar<S>

fn eq(&self, other: &VarChar<S>) -> 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<S: PartialOrd + AsRef<str>> PartialOrd for VarChar<S>

fn partial_cmp(&self, other: &VarChar<S>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl<S: Copy + AsRef<str>> Copy for VarChar<S>

impl<S: Eq + AsRef<str>> Eq for VarChar<S>

impl<S: AsRef<str>> StructuralPartialEq for VarChar<S>