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Func

Struct Func 

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pub struct Func {
    pub name: &'static str,
    pub args: Vec<Expr>,
    pub distinct: bool,
}
Expand description

A function call.

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§name: &'static str

The function name, written verbatim.

§args: Vec<Expr>

The arguments.

§distinct: bool

Whether DISTINCT applies to the first argument, as in aggregates.

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impl Func

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pub fn call(name: &'static str, args: impl IntoIterator<Item = Expr>) -> Expr

Builds a call to any function.

The name is written verbatim, so this is the escape hatch for engine functions that have no dedicated constructor.

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pub fn count(expr: Expr) -> Expr

Builds COUNT(expr).

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pub fn count_star() -> Expr

Builds COUNT(*).

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pub fn count_distinct(expr: Expr) -> Expr

Builds COUNT(DISTINCT expr).

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pub fn max(expr: Expr) -> Expr

Builds MAX(expr).

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pub fn min(expr: Expr) -> Expr

Builds MIN(expr).

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pub fn sum(expr: Expr) -> Expr

Builds SUM(expr).

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pub fn avg(expr: Expr) -> Expr

Builds AVG(expr).

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pub fn coalesce(args: impl IntoIterator<Item = Expr>) -> Expr

Builds COALESCE(a, b, ...).

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pub fn lower(expr: Expr) -> Expr

Builds LOWER(expr).

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pub fn upper(expr: Expr) -> Expr

Builds UPPER(expr).

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pub fn length(expr: Expr) -> Expr

Builds LENGTH(expr).

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pub fn abs(expr: Expr) -> Expr

Builds ABS(expr).

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pub fn if_null(a: Expr, b: Expr) -> Expr

Builds IFNULL(a, b).

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pub fn json_extract(json: Expr, path: impl Into<Value>) -> Expr

Builds json_extract(json, path), binding path as a parameter.

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pub fn vector_distance_cos(a: Expr, b: Expr) -> Expr

Builds vector_distance_cos(a, b) — Turso vector search.

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pub fn vector_distance_l2(a: Expr, b: Expr) -> Expr

Builds vector_distance_l2(a, b) — Turso vector search.

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pub fn vector32(expr: Expr) -> Expr

Builds vector32(text) — the Turso vector constructor.

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pub fn fts_match(column: Expr, query: impl Into<Value>) -> Expr

Builds fts_match(column, query) — Turso full-text search, binding query as a parameter.

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pub fn fts_score(column: Expr) -> Expr

Builds fts_score(column) — Turso full-text search ranking.

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impl Clone for Func

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

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

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

Formats the value using the given formatter. Read more
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impl PartialEq for Func

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

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

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

Inequality operator !=. Read more
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impl StructuralPartialEq for Func

Auto Trait Implementations§

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impl Freeze for Func

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impl RefUnwindSafe for Func

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impl Send for Func

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impl Sync for Func

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impl Unpin for Func

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impl UnsafeUnpin for Func

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impl UnwindSafe for Func

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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> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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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> 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 = !

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

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.