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Which issue does this PR close?

Closes #4765 .

Rationale for this change

See issue.

What changes are included in this PR?

  • Remove Operator::{Like,NotLike,ILike,NotILike}
  • For datafusion_expr::expr::Expr::{like, not_like, ilike, not_ilike}, return Expr::{Like, ILike} version.
  • In TypeCoercionRewriter use like_coercion directly, bypass Operator::Like etc.
  • Add a new LikeExpr in datafusion_physical_expr::expressions, bypass Operator::Like etc. Also convert Expr::{like, not_like, ilike, not_ilike} to this LikeExpr
  • Add new type in PhysicalExprNode proto, make corresponding change in from_proto & to_proto

Are these changes tested?

  • TypeCoercionRewriter and LikeExpr are tested correspondingly.
  • In datafusion::physical_plan::planner::tests::errors(), tests for like/ilike/not like/not ilike are removed, as for Expr::Like and Expr::ILike, coerce_types are not performed in Expr::get_type

https://github.com/apache/arrow-datafusion/blob/54ae4323a730a4a34c6b5f638e2083f0c3fe5dcc/datafusion/expr/src/expr_schema.rs#L128-L130

Are there any user-facing changes?

No.

@github-actions github-actions bot added core Core DataFusion crate logical-expr Logical plan and expressions optimizer Optimizer rules physical-expr Changes to the physical-expr crates labels Jan 2, 2023
@alamb
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alamb commented Jan 2, 2023

Thank you 🙏 @unconsolable -- I plan to review this one carefully tomorrow

@alamb alamb added the api change Changes the API exposed to users of the crate label Jan 2, 2023
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Thank you @unconsolable -- this is a very beautiful first PR 🏆

I had a few minor suggestions but overall this looks very close to mergable.

Thank you so much 🙏

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Thank you @unconsolable and @crepererum

@alamb alamb merged commit 702e117 into apache:master Jan 5, 2023
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alamb commented Jan 5, 2023

🚀

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ursabot commented Jan 5, 2023

Benchmark runs are scheduled for baseline = 24023b5 and contender = 702e117. 702e117 is a master commit associated with this PR. Results will be available as each benchmark for each run completes.
Conbench compare runs links:
[Skipped ⚠️ Benchmarking of arrow-datafusion-commits is not supported on ec2-t3-xlarge-us-east-2] ec2-t3-xlarge-us-east-2
[Skipped ⚠️ Benchmarking of arrow-datafusion-commits is not supported on test-mac-arm] test-mac-arm
[Skipped ⚠️ Benchmarking of arrow-datafusion-commits is not supported on ursa-i9-9960x] ursa-i9-9960x
[Skipped ⚠️ Benchmarking of arrow-datafusion-commits is not supported on ursa-thinkcentre-m75q] ursa-thinkcentre-m75q
Buildkite builds:
Supported benchmarks:
ec2-t3-xlarge-us-east-2: Supported benchmark langs: Python, R. Runs only benchmarks with cloud = True
test-mac-arm: Supported benchmark langs: C++, Python, R
ursa-i9-9960x: Supported benchmark langs: Python, R, JavaScript
ursa-thinkcentre-m75q: Supported benchmark langs: C++, Java

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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 physical-expr Changes to the physical-expr crates

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Multiple ways to express like / ilike / not like / not ilike

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