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Allow the expressions like 'v.tag' in return #5440

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merged 9 commits into from
Mar 28, 2023

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xtcyclist
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@xtcyclist xtcyclist commented Mar 27, 2023

What type of PR is this?

  • bug
  • feature
  • enhancement

What problem(s) does this PR solve?

Issue(s) number:

Fix #5329

Description:

'v.tag' means all properties of that tag are needed. They shall not be pruned by the optimizer.

How do you solve it?

Add a wildcard "*" into the VertexProp map in the tracker when encountered expressions like v.tag after the tag has been verified to be a real tag.

Special notes for your reviewer, ex. impact of this fix, design document, etc:

Checklist:

Tests:

  • Unit test(positive and negative cases)
  • Function test
  • Performance test
  • TCK

Affects:

  • Documentation affected (Please add the label if documentation needs to be modified.)
  • Incompatibility (If it breaks the compatibility, please describe it and add the label.)
  • If it's needed to cherry-pick (If cherry-pick to some branches is required, please label the destination version(s).)
  • Performance impacted: Consumes more CPU/Memory

Release notes:

Please confirm whether to be reflected in release notes and how to describe:

ex. Fixed the bug .....

@xtcyclist xtcyclist added the ready-for-testing PR: ready for the CI test label Mar 27, 2023
@xtcyclist xtcyclist requested review from czpmango, nevermore3, Aiee, codesigner, jievince, Shylock-Hg and yixinglu and removed request for czpmango March 27, 2023 10:02
@xtcyclist xtcyclist added do not review PR: not ready for the code review yet wip Solution: work in progress labels Mar 27, 2023
@xtcyclist xtcyclist marked this pull request as draft March 27, 2023 10:38
@xtcyclist xtcyclist marked this pull request as ready for review March 27, 2023 11:18
@xtcyclist xtcyclist added ready for review and removed do not review PR: not ready for the code review yet wip Solution: work in progress labels Mar 27, 2023
break;
}
auto tagId = ret.value();
propsUsed_.insertVertexProp(entityAlias, tagId, "*");
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Is it necessary to insert edge and vertex props at same time? maybe only need to handle one branch by checking where the prop is from?

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I just found e.likeness wouldn't reach here... Maybe this part was outdated. Let me check.

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@xtcyclist xtcyclist Mar 28, 2023

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It goes into Kind::kSubscript as $-.e[0]. Maybe we can delete it already. 算了,不敢删。

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Seems like we don't have sufficient information here to tell them apart. Any advise?

@xtcyclist xtcyclist requested a review from yixinglu March 28, 2023 05:47
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does nebula support outputting the attributes of a specified tag of a vertex?
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