Struct Asterisk
pub struct Asterisk;Expand description
Asterisk (“*”)
Express the asterisk without table prefix.
§Examples
use sea_query::{tests_cfg::*, *};
let query = Query::select()
.column(Asterisk)
.from(Char::Table)
.to_owned();
assert_eq!(
query.to_string(MysqlQueryBuilder),
r#"SELECT * FROM `character`"#
);
assert_eq!(
query.to_string(PostgresQueryBuilder),
r#"SELECT * FROM "character""#
);
assert_eq!(
query.to_string(SqliteQueryBuilder),
r#"SELECT * FROM "character""#
);Express the asterisk with table prefix.
Examples
use sea_query::{tests_cfg::*, *};
let query = Query::select()
.column((Char::Table, Asterisk))
.from(Char::Table)
.to_owned();
assert_eq!(
query.to_string(MysqlQueryBuilder),
r#"SELECT `character`.* FROM `character`"#
);
assert_eq!(
query.to_string(PostgresQueryBuilder),
r#"SELECT "character".* FROM "character""#
);
assert_eq!(
query.to_string(SqliteQueryBuilder),
r#"SELECT "character".* FROM "character""#
);Trait Implementations§
§impl IntoColumnRef for Asterisk
impl IntoColumnRef for Asterisk
fn into_column_ref(self) -> ColumnRef
impl Copy for Asterisk
Auto Trait Implementations§
impl Freeze for Asterisk
impl RefUnwindSafe for Asterisk
impl Send for Asterisk
impl Sync for Asterisk
impl Unpin for Asterisk
impl UnwindSafe for Asterisk
Blanket Implementations§
§impl<U> As for U
impl<U> As for U
§fn as_<T>(self) -> Twhere
T: CastFrom<U>,
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Casts
self to type T. The semantics of numeric casting with the as operator are followed, so <T as As>::as_::<U> can be used in the same way as T as U for numeric conversions. Read moreSource§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
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Mutably borrows from an owned value. Read more
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T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
§impl<T> Downcast for Twhere
T: AsAny + ?Sized,
impl<T> Downcast for Twhere
T: AsAny + ?Sized,
§fn downcast_ref<T>(&self) -> Option<&T>where
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fn downcast_ref<T>(&self) -> Option<&T>where
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Forward to the method defined on the type
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fn in_current_span(self) -> Instrumented<Self>
Source§impl<T> IntoEither for T
impl<T> IntoEither for T
Source§fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ
fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ
Converts
self into a Left variant of Either<Self, Self>
if into_left is true.
Converts self into a Right variant of Either<Self, Self>
otherwise. Read moreSource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
Converts
self into a Left variant of Either<Self, Self>
if into_left(&self) returns true.
Converts self into a Right variant of Either<Self, Self>
otherwise. Read more§impl<T> IntoRequest<T> for T
impl<T> IntoRequest<T> for T
§fn into_request(self) -> Request<T>
fn into_request(self) -> Request<T>
Wrap the input message
T in a tonic::Request§impl<L> LayerExt<L> for L
impl<L> LayerExt<L> for L
§fn named_layer<S>(&self, service: S) -> Layered<<L as Layer<S>>::Service, S>where
L: Layer<S>,
fn named_layer<S>(&self, service: S) -> Layered<<L as Layer<S>>::Service, S>where
L: Layer<S>,
Applies the layer to a service and wraps it in [
Layered].