Struct tidb_query_aggr::impl_count::AggrFnDefinitionParserCount[−][src]

[+] Show declaration

pub struct AggrFnDefinitionParserCount;

[−]

The parser for COUNT aggregate function.

Trait Implementations

`impl AggrDefinitionParser for AggrFnDefinitionParserCount`[src][+]

[+] Show hidden undocumented items

`fn check_supported(&self, aggr_def: &Expr) -> Result<()>`[src][−]

`fn parse_rpn( &self, root_expr: Expr, exp: RpnExpression, _ctx: &mut EvalContext, _src_schema: &[FieldType], out_schema: &mut Vec<FieldType>, out_exp: &mut Vec<RpnExpression> ) -> Result<Box<dyn AggrFunction>>`[src]

`fn parse( &self, aggr_def: Expr, ctx: &mut EvalContext, src_schema: &[FieldType], out_schema: &mut Vec<FieldType>, out_exp: &mut Vec<RpnExpression> ) -> Result<Box<dyn AggrFunction>>`[src][−]

Auto Trait Implementations

`impl RefUnwindSafe for AggrFnDefinitionParserCount`

`impl Send for AggrFnDefinitionParserCount`

`impl Sync for AggrFnDefinitionParserCount`

`impl Unpin for AggrFnDefinitionParserCount`

`impl UnwindSafe for AggrFnDefinitionParserCount`

Blanket Implementations

`impl<T> Any for T where T: 'static + ?Sized,` [src][+]

[+] Show hidden undocumented items

`pub fn type_id(&self) -> TypeId`[src][−]

`impl<T> Borrow<T> for T where T: ?Sized,` [src][+]

[+] Show hidden undocumented items

`pub fn borrow(&self) -> &T`[src][−]

`impl<T> BorrowMut<T> for T where T: ?Sized,` [src][+]

[+] Show hidden undocumented items

`pub fn borrow_mut(&mut self) -> &mut T`[src][−]

`impl<V, W> ConvertFrom<W> for V where W: ConvertTo<V>,` [src][+]

[+] Show hidden undocumented items

`pub fn convert_from(ctx: &mut EvalContext, from: W) -> Result<V, Error>`[src][−]

`impl<T> From<T> for T`[src][+]

[+] Show hidden undocumented items

`pub fn from(t: T) -> T`[src][−]

`impl<T> Instrument for T`[src][+]

[+] Show hidden undocumented items

`pub fn instrument(self, span: Span) -> Instrumented<Self>`[src][−]

`pub fn in_current_span(self) -> Instrumented<Self>`[src][−]

`impl<T, U> Into for T where U: From<T>,` [src][+]

[+] Show hidden undocumented items

`pub fn into(self) -> U`[src][−]

`impl<T> Pointable for T`[src][+]

[+] Show hidden undocumented items

`pub const ALIGN: usize`[src][−][−]

`type Init = T`

The type for initializers.

`pub unsafe fn init(init: <T as Pointable>::Init) -> usize`[src][−]

`pub unsafe fn deref<'a>(ptr: usize) -> &'a T`[src][−]

`pub unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T`[src][−]

`pub unsafe fn drop(ptr: usize)`[src][−]

`impl<T> Same<T> for T`[src]

`type Output = T`

Should always be Self

`impl<T> Sealed<T> for T where T: ?Sized,` [src]

`impl<T> SendSyncUnwindSafe for T where T: Send + Sync + UnwindSafe + ?Sized,` [src]

`impl<T, U> TryFrom for T where U: Into<T>,` [src][+]

[+] Show hidden undocumented items

`type Error = Infallible`

The type returned in the event of a conversion error.

`pub fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>`[src][−]

`impl<T, U> TryInto for T where U: TryFrom<T>,` [src][+]

[+] Show hidden undocumented items

`type Error = >::Error`

The type returned in the event of a conversion error.

`pub fn try_into(self) -> Result<U, >::Error>`[src][−]

`impl<V, T> VZip<V> for T where V: MultiLane<T>,` [src][+]

[+] Show hidden undocumented items

Struct tidb_query_aggr::impl_count::AggrFnDefinitionParserCount⎘[−][src]

Trait Implementations

impl AggrDefinitionParser for AggrFnDefinitionParserCount[src][+]

fn check_supported(&self, aggr_def: &Expr) -> Result<()>[src][−]

fn parse_rpn( &self, root_expr: Expr, exp: RpnExpression, _ctx: &mut EvalContext, _src_schema: &[FieldType], out_schema: &mut Vec<FieldType>, out_exp: &mut Vec<RpnExpression>) -> Result<Box<dyn AggrFunction>>[src]

fn parse( &self, aggr_def: Expr, ctx: &mut EvalContext, src_schema: &[FieldType], out_schema: &mut Vec<FieldType>, out_exp: &mut Vec<RpnExpression>) -> Result<Box<dyn AggrFunction>>[src][−]

Auto Trait Implementations

impl RefUnwindSafe for AggrFnDefinitionParserCount

impl Send for AggrFnDefinitionParserCount

impl Sync for AggrFnDefinitionParserCount

impl Unpin for AggrFnDefinitionParserCount

impl UnwindSafe for AggrFnDefinitionParserCount

Blanket Implementations

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

pub fn type_id(&self) -> TypeId[src][−]

impl<T> Borrow<T> for T where T: ?Sized, [src][+]

pub fn borrow(&self) -> &T[src][−]

impl<T> BorrowMut<T> for T where T: ?Sized, [src][+]

pub fn borrow_mut(&mut self) -> &mut T[src][−]

impl<V, W> ConvertFrom<W> for V where W: ConvertTo<V>, [src][+]

pub fn convert_from(ctx: &mut EvalContext, from: W) -> Result<V, Error>[src][−]

impl<T> From<T> for T[src][+]

pub fn from(t: T) -> T[src][−]

impl<T> Instrument for T[src][+]

pub fn instrument(self, span: Span) -> Instrumented<Self>[src][−]

pub fn in_current_span(self) -> Instrumented<Self>[src][−]

impl<T, U> Into<U> for T where U: From<T>, [src][+]

pub fn into(self) -> U[src][−]

impl<T> Pointable for T[src][+]

pub const ALIGN: usize[src][−][−]

type Init = T

pub unsafe fn init(init: <T as Pointable>::Init) -> usize[src][−]

pub unsafe fn deref<'a>(ptr: usize) -> &'a T[src][−]

pub unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T[src][−]

pub unsafe fn drop(ptr: usize)[src][−]

impl<T> Same<T> for T[src]

type Output = T

impl<T> Sealed<T> for T where T: ?Sized, [src]

impl<T> SendSyncUnwindSafe for T where T: Send + Sync + UnwindSafe + ?Sized, [src]

impl<T, U> TryFrom<U> for T where U: Into<T>, [src][+]

type Error = Infallible

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src][−]

impl<T, U> TryInto<U> for T where U: TryFrom<T>, [src][+]

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

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>[src][−]

impl<V, T> VZip<V> for T where V: MultiLane<T>, [src][+]

pub fn vzip(self) -> V[src]

Struct tidb_query_aggr::impl_count::AggrFnDefinitionParserCount[−][src]

`impl AggrDefinitionParser for AggrFnDefinitionParserCount`[src][+]

`fn check_supported(&self, aggr_def: &Expr) -> Result<()>`[src][−]

`fn parse_rpn( &self, root_expr: Expr, exp: RpnExpression, _ctx: &mut EvalContext, _src_schema: &[FieldType], out_schema: &mut Vec<FieldType>, out_exp: &mut Vec<RpnExpression> ) -> Result<Box<dyn AggrFunction>>`[src]

`fn parse( &self, aggr_def: Expr, ctx: &mut EvalContext, src_schema: &[FieldType], out_schema: &mut Vec<FieldType>, out_exp: &mut Vec<RpnExpression> ) -> Result<Box<dyn AggrFunction>>`[src][−]

`impl RefUnwindSafe for AggrFnDefinitionParserCount`

`impl Send for AggrFnDefinitionParserCount`

`impl Sync for AggrFnDefinitionParserCount`

`impl Unpin for AggrFnDefinitionParserCount`

`impl UnwindSafe for AggrFnDefinitionParserCount`

`impl<T> Any for T where T: 'static + ?Sized,` [src][+]

`pub fn type_id(&self) -> TypeId`[src][−]

`impl<T> Borrow<T> for T where T: ?Sized,` [src][+]

`pub fn borrow(&self) -> &T`[src][−]

`impl<T> BorrowMut<T> for T where T: ?Sized,` [src][+]

`pub fn borrow_mut(&mut self) -> &mut T`[src][−]

`impl<V, W> ConvertFrom<W> for V where W: ConvertTo<V>,` [src][+]

`pub fn convert_from(ctx: &mut EvalContext, from: W) -> Result<V, Error>`[src][−]

`impl<T> From<T> for T`[src][+]

`pub fn from(t: T) -> T`[src][−]

`impl<T> Instrument for T`[src][+]

`pub fn instrument(self, span: Span) -> Instrumented<Self>`[src][−]

`pub fn in_current_span(self) -> Instrumented<Self>`[src][−]

`impl<T, U> Into<U> for T where U: From<T>,` [src][+]

`pub fn into(self) -> U`[src][−]

`impl<T> Pointable for T`[src][+]

`pub const ALIGN: usize`[src][−][−]

`type Init = T`

`pub unsafe fn init(init: <T as Pointable>::Init) -> usize`[src][−]

`pub unsafe fn deref<'a>(ptr: usize) -> &'a T`[src][−]

`pub unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T`[src][−]

`pub unsafe fn drop(ptr: usize)`[src][−]

`impl<T> Same<T> for T`[src]

`type Output = T`

`impl<T> Sealed<T> for T where T: ?Sized,` [src]

`impl<T> SendSyncUnwindSafe for T where T: Send + Sync + UnwindSafe + ?Sized,` [src]

`impl<T, U> TryFrom<U> for T where U: Into<T>,` [src][+]

`type Error = Infallible`

`pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>`[src][−]

`impl<T, U> TryInto<U> for T where U: TryFrom<T>,` [src][+]

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

`pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>`[src][−]

`impl<V, T> VZip<V> for T where V: MultiLane<T>,` [src][+]

`pub fn vzip(self) -> V`[src]