pub enum Value {
Number(String, bool),
SingleQuotedString(String),
NationalStringLiteral(String),
HexStringLiteral(String),
DoubleQuotedString(String),
Boolean(bool),
Interval {
value: String,
leading_field: Option<DateTimeField>,
leading_precision: Option<u64>,
last_field: Option<DateTimeField>,
fractional_seconds_precision: Option<u64>,
},
Null,
Placeholder(String),
}
Expand description
Primitive SQL values such as number and string
Variants
Number(String, bool)
Numeric literal
SingleQuotedString(String)
‘string value’
NationalStringLiteral(String)
N’string value’
HexStringLiteral(String)
X’hex value’
DoubleQuotedString(String)
Boolean(bool)
Boolean value true or false
Interval
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
.
Null
NULL
value
Placeholder(String)
?
or $
Prepared statement arg placeholder
Trait Implementations
impl Eq for Value
impl StructuralEq for Value
impl StructuralPartialEq for Value
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
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> ToOwned for T where
T: Clone,
impl<T> ToOwned for T where
T: Clone,
type Owned = T
type Owned = T
The resulting type after obtaining ownership.
sourcefn clone_into(&self, target: &mut T)
fn clone_into(&self, target: &mut T)
🔬 This is a nightly-only experimental API. (
toowned_clone_into
)Uses borrowed data to replace owned data, usually by cloning. Read more