Introduce Compare to support nulls comparison
#5672
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Signed-off-by: jayzhan211 <jayzhan211@gmail.com>
Signed-off-by: jayzhan211 <jayzhan211@gmail.com>
Signed-off-by: jayzhan211 <jayzhan211@gmail.com>
jayzhan211
commented
Apr 21, 2024
| } | ||
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| #[inline] | ||
| pub fn is_null(&self) -> bool { |
Signed-off-by: jayzhan211 <jayzhan211@gmail.com>
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As stated on the ticket, this needs more thought as it won't work for distinct, it is on my list to work out a way to support this but I haven't had time recently. Edit: it is possible I just had a brain fart, I think we should mock up something showing this works for distinct and then we can move forward with this. We should probably double check this doesn't regress the lexsort benchmarks as well |
tustvold
reviewed
Apr 21, 2024
| /// Compare the values at two arbitrary indices in two arrays. | ||
| pub type DynComparator = Box<dyn Fn(usize, usize) -> Ordering + Send + Sync>; | ||
| pub type DynComparator = Box<dyn Fn(usize, usize) -> Compare + Send + Sync>; |
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Currently this will be a breaking change, we might want to make this change additive and deprecate DynComparator instead
tustvold
reviewed
Apr 21, 2024
| @@ -725,16 +726,19 @@ impl LexicographicalComparator { | |||
| None => (true, true), | |||
| }; | |||
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| // TODO: after dict values with nulls are supported, we can compare with | |||
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I think this will probably be necessary to avoid this change regressing the performance of lexsort
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Which issue does this PR close?
First step of #5426, support existing comparator, exclude list
Rationale for this change
What changes are included in this PR?
Are there any user-facing changes?