Operator for join-values

[frouioui]

Description

Related Issue(s)

• Part of Proposal to Optimize Join Operations with Chunking Using VALUES Statement #16508

[vitess-bot]

Review Checklist

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General

• Ensure that the Pull Request has a descriptive title.
• Ensure there is a link to an issue (except for internal cleanup and flaky test fixes), new features should have an RFC that documents use cases and test cases.

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Backward compatibility

• Protobuf changes should be wire-compatible.
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• RPC changes should be compatible with vitess-operator
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• vtctl command output order should be stable and awk-able.

[codecov]

Codecov Report

Attention: Patch coverage is 70.94017% with 170 lines in your changes missing coverage. Please review.

Project coverage is 67.72%. Comparing base (d1aa2f4) to head (ba53da7).
Report is 25 commits behind head on main.

Files with missing lines	Patch %	Lines
go/vt/vtgate/engine/values_join.go	39.72%	44 Missing ⚠️
go/vt/vtgate/planbuilder/operators/values_join.go	0.00%	41 Missing ⚠️
go/vt/vtgate/planbuilder/operators/values.go	9.75%	37 Missing ⚠️
go/vt/vtgate/planbuilder/operators/op_to_ast.go	92.97%	22 Missing ⚠️
...o/vt/vtgate/planbuilder/operators/query_builder.go	69.81%	16 Missing ⚠️
go/vt/vtgate/evalengine/eval.go	0.00%	9 Missing ⚠️
go/vt/vtgate/evalengine/eval_tuple.go	85.71%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #17641      +/-   ##
==========================================
+ Coverage   67.68%   67.72%   +0.04%     
==========================================
  Files        1586     1590       +4     
  Lines      255170   255987     +817     
==========================================
+ Hits       172722   173378     +656     
- Misses      82448    82609     +161     

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