[−][src]Enum sql_ast::Value
Primitive SQL values such as number and string
Variants
Number(String)
Numeric literal
SingleQuotedString(String)
'string value'
NationalStringLiteral(String)
N'string value'
HexStringLiteral(String)
X'hex value'
Boolean(bool)
Boolean value true or false
Date(String)
DATE '...'
literals
Time(String)
TIME '...'
literals
Timestamp(String)
TIMESTAMP '...'
literals
INTERVAL literals, roughly in the following format:
INTERVAL '<value>' <leading_field> [ (<leading_precision>) ] [ TO <last_field> [ (<fractional_seconds_precision>) ] ]
,
e.g. INTERVAL '123:45.67' MINUTE(3) TO SECOND(2)
.
The parser does not validate the <value>
, nor does it ensure
that the <leading_field>
units >= the units in <last_field>
,
so the user will have to reject intervals like HOUR TO YEAR
.
Fields of Interval
value: String
leading_field: DateTimeField
leading_precision: Option<u64>
last_field: Option<DateTimeField>
fractional_seconds_precision: Option<u64>
The seconds precision can be specified in SQL source as
INTERVAL '__' SECOND(_, x)
(in which case the leading_field
will be Second
and the last_field
will be None
),
or as __ TO SECOND(x)
.
NULL
value
use the default value
Trait Implementations
impl Clone for Value
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impl Debug for Value
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impl Display for Value
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impl Eq for Value
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impl Hash for Value
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pub fn hash<__H: Hasher>(&self, state: &mut __H)
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pub fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
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H: Hasher,
impl PartialEq<Value> for Value
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impl StructuralEq for Value
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impl StructuralPartialEq for Value
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Auto Trait Implementations
impl RefUnwindSafe for Value
impl Send for Value
impl Sync for Value
impl Unpin for Value
impl UnwindSafe for Value
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn clone_into(&self, target: &mut T)
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impl<T> ToString for T where
T: Display + ?Sized,
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T: Display + ?Sized,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,