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fix order by for null/nonexistant column
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| use crate::engine::*; | ||
| use crate::mem_store::Val; | ||
|
|
||
| #[derive(Debug)] | ||
| pub struct NullToVal { | ||
| pub input: BufferRef<Any>, | ||
| pub output: BufferRef<Val<'static>>, | ||
|
|
||
| pub batch_size: usize, | ||
| } | ||
|
|
||
| impl<'a> VecOperator<'a> for NullToVal { | ||
| fn execute(&mut self, _: bool, scratchpad: &mut Scratchpad<'a>) -> Result<(), QueryError> { | ||
| let len = scratchpad.get_any(self.input).len(); | ||
| if self.batch_size > len { | ||
| let mut output = scratchpad.get_mut(self.output); | ||
| output.truncate(len); | ||
| } | ||
| Ok(()) | ||
| } | ||
|
|
||
| fn init(&mut self, _: usize, batch_size: usize, scratchpad: &mut Scratchpad<'a>) { | ||
| self.batch_size = batch_size; | ||
| scratchpad.set(self.output, vec![Val::Null; batch_size]); | ||
| } | ||
|
|
||
| fn inputs(&self) -> Vec<BufferRef<Any>> { | ||
| vec![self.input.any()] | ||
| } | ||
| fn outputs(&self) -> Vec<BufferRef<Any>> { | ||
| vec![self.output.any()] | ||
| } | ||
| fn can_stream_input(&self, _: usize) -> bool { | ||
| true | ||
| } | ||
| fn can_stream_output(&self, _: usize) -> bool { | ||
| true | ||
| } | ||
| fn allocates(&self) -> bool { | ||
| true | ||
| } | ||
|
|
||
| fn display_op(&self, _: bool) -> String { | ||
| format!("{} expand as Val", self.input) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,54 @@ | ||
| use crate::engine::*; | ||
|
|
||
| // Take a null count and expands it into a nullable vec of the same length with arbitrary type and all values set to null | ||
| #[derive(Debug)] | ||
| pub struct NullToVec<T> { | ||
| pub input: BufferRef<Any>, | ||
| pub output: BufferRef<Nullable<T>>, | ||
|
|
||
| pub batch_size: usize, | ||
| } | ||
|
|
||
| impl<'a, T: 'a> VecOperator<'a> for NullToVec<T> | ||
| where | ||
| T: VecData<T> + Copy + Default, | ||
| { | ||
| fn execute(&mut self, _: bool, scratchpad: &mut Scratchpad<'a>) -> Result<(), QueryError> { | ||
| let len = scratchpad.get_any(self.input).len(); | ||
| if self.batch_size > len { | ||
| let (mut output, mut present) = scratchpad.get_mut_nullable(self.output); | ||
| output.truncate(len); | ||
| present.truncate((len + 7) / 8); | ||
| } | ||
| Ok(()) | ||
| } | ||
|
|
||
| fn init(&mut self, _: usize, batch_size: usize, scratchpad: &mut Scratchpad<'a>) { | ||
| self.batch_size = batch_size; | ||
| scratchpad.set_nullable( | ||
| self.output, | ||
| vec![T::default(); batch_size], | ||
| vec![0u8; (batch_size + 7) / 8], | ||
| ); | ||
| } | ||
|
|
||
| fn inputs(&self) -> Vec<BufferRef<Any>> { | ||
| vec![self.input.any()] | ||
| } | ||
| fn outputs(&self) -> Vec<BufferRef<Any>> { | ||
| vec![self.output.any()] | ||
| } | ||
| fn can_stream_input(&self, _: usize) -> bool { | ||
| true | ||
| } | ||
| fn can_stream_output(&self, _: usize) -> bool { | ||
| true | ||
| } | ||
| fn allocates(&self) -> bool { | ||
| true | ||
| } | ||
|
|
||
| fn display_op(&self, _: bool) -> String { | ||
| format!("{} expand as Nullable<{:?}>", self.input, T::t()) | ||
| } | ||
| } |
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