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Remove OwnedTableReference and OwnedSchemaReference #9933

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merged 4 commits into from
Apr 4, 2024
Merged

Remove OwnedTableReference and OwnedSchemaReference #9933

merged 4 commits into from
Apr 4, 2024

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comphead
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@comphead comphead commented Apr 4, 2024

Which issue does this PR close?

Related to #9764
Followup on #9824

Rationale for this change

In #9824 we switched to use Arc smart pointers instead of CoW<&'a>. Having done that the auxiliary types supporting lifetimes became obsolete.

What changes are included in this PR?

The PR removes OwnedTableReference and OwnedSchemaReference types which are now obsolete.

Are these changes tested?

Are there any user-facing changes?

@github-actions github-actions bot added sql SQL Planner logical-expr Logical plan and expressions optimizer Optimizer rules core Core DataFusion crate labels Apr 4, 2024
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comphead commented Apr 4, 2024

I have run benches, there is slight noise for most of benches, however there are sometimes regression 4%, sometimes performance improvement 4%.

My feeling once we unify TableReference types, we can also unify references to this types which will give more boost. Sometimes we use direct reference, sometime option, sometime lifetime, etc, unifying accessing to TableReference will make code cleaner and faster

phillipleblanc
phillipleblanc reviewed Apr 4, 2024
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I like this change 👍. What is the process to mark this as a breaking change users should be aware of when updating?

@comphead comphead added the api change Changes the API exposed to users of the crate label Apr 4, 2024
@alamb alamb mentioned this pull request Apr 4, 2024
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alamb commented Apr 4, 2024

I like this change 👍. What is the process to mark this as a breaking change users should be aware of when updating?

We add a api-change label which then highlights it as a breaking change in the release notes https://github.com/apache/arrow-datafusion/blob/main/dev/changelog/36.0.0.md

@comphead comphead mentioned this pull request Apr 4, 2024
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This looks really nice -- thank you @comphead 🙏

datafusion/expr/src/logical_plan/builder.rs
.collect::<Vec<_>>();
left_fields.into_iter().chain(right_fields).collect()
}
JoinType::Left => {
// left then right, right set to nullable in case of not matched scenario
let left_fields = left_fields
.map(|(q, f)| (q.map(|r| r.to_owned_reference()), f.clone()))
.map(|(q, f)| (q.cloned(), f.clone()))
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👍

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I'm thinking to try removing all this clones in future... if possible

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comphead commented Apr 4, 2024

I'll wait for couple of more hours, if there is no more comments, I'll merge to avoid conflicts on upcoming analyzer changes

@alamb alamb mentioned this pull request Apr 4, 2024
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@comphead comphead merged commit 3ae0299 into apache:main Apr 4, 2024
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@phillipleblanc phillipleblanc mentioned this pull request May 13, 2024
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api change Changes the API exposed to users of the crate core Core DataFusion crate logical-expr Logical plan and expressions optimizer Optimizer rules sql SQL Planner
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