ColumnRef

caretta_framework_migration

Enum ColumnRef 

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#[non_exhaustive]
pub enum ColumnRef {
    Column(ColumnName),
    Asterisk(Option<TableName>),
}
Expand description

Column references.

Variants (Non-exhaustive)§

This enum is marked as non-exhaustive
Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.
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Column(ColumnName)

A column name, potentially qualified as (database.)(schema.)(table.)column.

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Asterisk(Option<TableName>)

An * expression, potentially qualified as (database.)(schema.)(table.)*.

Trait Implementations§

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impl Clone for ColumnRef

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fn clone(&self) -> ColumnRef

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for ColumnRef

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

Formats the value using the given formatter. Read more
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impl<T> From<(T, Asterisk)> for ColumnRef
where T: IntoIden,

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fn from(value: (T, Asterisk)) -> ColumnRef

Converts to this type from the input type.
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impl From<Asterisk> for ColumnRef

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fn from(_: Asterisk) -> ColumnRef

Converts to this type from the input type.
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impl From<ColumnRef> for Expr

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fn from(col: ColumnRef) -> Expr

Converts to this type from the input type.
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impl<T> From<T> for ColumnRef
where T: Into<ColumnName>,

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fn from(value: T) -> ColumnRef

Converts to this type from the input type.
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impl PartialEq for ColumnRef

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fn eq(&self, other: &ColumnRef) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl StructuralPartialEq for ColumnRef

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> ExprTrait for T
where T: Into<Expr>,

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fn as_enum<N>(self, type_name: N) -> Expr
where N: IntoIden,

Express a AS enum expression. Read more
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fn binary<O, R>(self, op: O, right: R) -> Expr
where O: Into<BinOper>, R: Into<Expr>,

Create any binary operation Read more
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fn cast_as<N>(self, type_name: N) -> Expr
where N: IntoIden,

Express a CAST AS expression. Read more
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fn unary(self, op: UnOper) -> Expr

Apply any unary operator to the expression. Read more
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fn max(self) -> Expr

Express a MAX function. Read more
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fn min(self) -> Expr

Express a MIN function. Read more
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fn sum(self) -> Expr

Express a SUM function. Read more
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fn avg(self) -> Expr

Express a AVG (average) function. Read more
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fn count(self) -> Expr

Express a COUNT function. Read more
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fn count_distinct(self) -> Expr

Express a COUNT function with the DISTINCT modifier. Read more
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fn if_null<V>(self, v: V) -> Expr
where V: Into<Expr>,

Express a IF NULL function. Read more
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fn add<R>(self, right: R) -> Expr
where R: Into<Expr>,

Express an arithmetic addition operation. Read more
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fn and<R>(self, right: R) -> Expr
where R: Into<Expr>,

Express a logical AND operation. Read more
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fn between<A, B>(self, a: A, b: B) -> Expr
where A: Into<Expr>, B: Into<Expr>,

Express a BETWEEN expression. Read more
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fn div<R>(self, right: R) -> Expr
where R: Into<Expr>,

Express an arithmetic division operation. Read more
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fn eq<R>(self, right: R) -> Expr
where R: Into<Expr>,

Express an equal (=) expression. Read more
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fn equals<C>(self, col: C) -> Expr
where C: IntoColumnRef,

Express a equal expression between two table columns, you will mainly use this to relate identical value between two table columns. Read more
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fn gt<R>(self, right: R) -> Expr
where R: Into<Expr>,

Express a greater than (>) expression. Read more
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fn gte<R>(self, right: R) -> Expr
where R: Into<Expr>,

Express a greater than or equal (>=) expression. Read more
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fn in_subquery(self, sel: SelectStatement) -> Expr

Express a IN sub-query expression. Read more
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fn in_tuples<V, I>(self, v: I) -> Expr
where V: IntoValueTuple, I: IntoIterator<Item = V>,

Express a IN sub expression. Read more
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fn is<R>(self, right: R) -> Expr
where R: Into<Expr>,

Express a IS expression. Read more
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fn is_in<V, I>(self, v: I) -> Expr
where V: Into<Expr>, I: IntoIterator<Item = V>,

Express a IN expression. Read more
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fn is_not<R>(self, right: R) -> Expr
where R: Into<Expr>,

Express a IS NOT expression. Read more
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fn is_not_in<V, I>(self, v: I) -> Expr
where V: Into<Expr>, I: IntoIterator<Item = V>,

Express a NOT IN expression. Read more
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fn is_not_null(self) -> Expr

Express a IS NOT NULL expression. Read more
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fn is_null(self) -> Expr

Express a IS NULL expression. Read more
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fn left_shift<R>(self, right: R) -> Expr
where R: Into<Expr>,

Express a bitwise left shift. Read more
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fn like<L>(self, like: L) -> Expr
where L: IntoLikeExpr,

Express a LIKE expression. Read more
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fn lt<R>(self, right: R) -> Expr
where R: Into<Expr>,

Express a less than (<) expression. Read more
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fn lte<R>(self, right: R) -> Expr
where R: Into<Expr>,

Express a less than or equal (<=) expression. Read more
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fn modulo<R>(self, right: R) -> Expr
where R: Into<Expr>,

Express an arithmetic modulo operation. Read more
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fn mul<R>(self, right: R) -> Expr
where R: Into<Expr>,

Express an arithmetic multiplication operation. Read more
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fn ne<R>(self, right: R) -> Expr
where R: Into<Expr>,

Express a not equal (<>) expression. Read more
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fn not(self) -> Expr

Negates an expression with NOT. Read more
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fn not_between<A, B>(self, a: A, b: B) -> Expr
where A: Into<Expr>, B: Into<Expr>,

Express a NOT BETWEEN expression. Read more
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fn not_equals<C>(self, col: C) -> Expr
where C: IntoColumnRef,

Express a not equal expression between two table columns, you will mainly use this to relate identical value between two table columns. Read more
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fn not_in_subquery(self, sel: SelectStatement) -> Expr

Express a NOT IN sub-query expression. Read more
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fn not_like<L>(self, like: L) -> Expr
where L: IntoLikeExpr,

Express a NOT LIKE expression. Read more
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fn or<R>(self, right: R) -> Expr
where R: Into<Expr>,

Express a logical OR operation. Read more
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fn right_shift<R>(self, right: R) -> Expr
where R: Into<Expr>,

Express a bitwise right shift. Read more
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fn sub<R>(self, right: R) -> Expr
where R: Into<Expr>,

Express an arithmetic subtraction operation. Read more
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fn bit_and<R>(self, right: R) -> Expr
where R: Into<Expr>,

Express a bitwise AND operation. Read more
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fn bit_or<R>(self, right: R) -> Expr
where R: Into<Expr>,

Express a bitwise OR operation. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoColumnRef for T
where T: Into<ColumnRef>,

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fn into_column_ref(self) -> ColumnRef

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impl<T> IntoEither for T

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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 more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

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
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impl<T> PgExpr for T
where T: ExprTrait,

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fn concatenate<T>(self, right: T) -> Expr
where T: Into<Expr>,

Express an postgres concatenate (||) expression. Read more
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fn concat<T>(self, right: T) -> Expr
where T: Into<Expr>,

Alias of PgExpr::concatenate
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fn matches<T>(self, expr: T) -> Expr
where T: Into<Expr>,

Express an postgres fulltext search matches (@@) expression. Read more
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fn contains<T>(self, expr: T) -> Expr
where T: Into<Expr>,

Express an postgres fulltext search contains (@>) expression. Read more
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fn contained<T>(self, expr: T) -> Expr
where T: Into<Expr>,

Express an postgres fulltext search contained (<@) expression. Read more
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fn ilike<L>(self, like: L) -> Expr
where L: IntoLikeExpr,

Express a ILIKE expression. Read more
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fn not_ilike<L>(self, like: L) -> Expr
where L: IntoLikeExpr,

Express a NOT ILIKE expression
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fn get_json_field<T>(self, right: T) -> Expr
where T: Into<Expr>,

Express a postgres retrieves JSON field as JSON value (->). Read more
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fn cast_json_field<T>(self, right: T) -> Expr
where T: Into<Expr>,

Express a postgres retrieves JSON field and casts it to an appropriate SQL type (->>). Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> SqliteExpr for T
where T: ExprTrait,

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fn glob<T>(self, right: T) -> Expr
where T: Into<Expr>,

Express an sqlite GLOB operator. Read more
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fn matches<T>(self, right: T) -> Expr
where T: Into<Expr>,

Express an sqlite MATCH operator. Read more
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fn get_json_field<T>(self, right: T) -> Expr
where T: Into<Expr>,

Express an sqlite retrieves JSON field as JSON value (->). Read more
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fn cast_json_field<T>(self, right: T) -> Expr
where T: Into<Expr>,

Express an sqlite retrieves JSON field and casts it to an appropriate SQL type (->>). Read more
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
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impl<T> ErasedDestructor for T
where T: 'static,