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Lookup limit push down #2796

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merged 5 commits into from
Sep 15, 2021
Merged

Lookup limit push down #2796

merged 5 commits into from
Sep 15, 2021

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bright-starry-sky
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@bright-starry-sky bright-starry-sky added the wip Solution: work in progress label Sep 6, 2021
@Shylock-Hg
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And you should add a test case.

@Shylock-Hg Shylock-Hg mentioned this pull request Sep 8, 2021
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@bright-starry-sky bright-starry-sky added ready-for-testing PR: ready for the CI test and removed wip Solution: work in progress labels Sep 9, 2021
@bright-starry-sky bright-starry-sky changed the title [DRAFT] lookup limit push down Lookup limit push down Sep 9, 2021
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Addressed comments.

@bright-starry-sky
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Related #2602

panda-sheep
panda-sheep previously approved these changes Sep 14, 2021
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Good job！

src/clients/storage/GraphStorageClient.cpp Show resolved Hide resolved
src/storage/index/LookupBaseProcessor.h Show resolved Hide resolved
@bright-starry-sky
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Corrected comments. thanks @panda-sheep

panda-sheep
panda-sheep previously approved these changes Sep 14, 2021
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@bright-starry-sky
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rebase and resolve conflict

critical27
critical27 approved these changes Sep 15, 2021
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Generally LGTM, wait graph PR is ready.

@bright-starry-sky bright-starry-sky merged commit dbea9c7 into vesoft-inc:master Sep 15, 2021
@bright-starry-sky bright-starry-sky deleted the push_dowm_limit_sample branch September 15, 2021 01:37
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related #2823

@cangfengzhs
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The limit must be the top node of the execution plan, otherwise the size of the final dataset will be smaller than the limit count due to the filter (and possibly dedup) discarding part of the data.

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The limit must be the top node of the execution plan, otherwise the size of the final dataset will be smaller than the limit count due to the filter (and possibly dedup) discarding part of the data.

Yes the limit push down can't over the filter operation.

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The limit must be the top node of the execution plan, otherwise the size of the final dataset will be smaller than the limit count due to the filter (and possibly dedup) discarding part of the data.

Good point. Thanks for your remind.
The limit can't cover filter, ttl and dedup. I'll deal with it later.

@bright-starry-sky bright-starry-sky mentioned this pull request Sep 18, 2021
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@jamieliu1023 jamieliu1023 mentioned this pull request Sep 18, 2021
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@bright-starry-sky bright-starry-sky mentioned this pull request Sep 27, 2021
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@Sophie-Xie Sophie-Xie added this to the v2.6.0 milestone Sep 27, 2021
yixinglu pushed a commit to yixinglu/nebula that referenced this pull request Sep 14, 2023
@Aiee
[LM] Set readFromCache_ to true if the host is not the leader (veso…
ecacd63 
…ft-inc#2796)

Fix
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@Shylock-Hg Shylock-Hg Shylock-Hg left review comments

@panda-sheep panda-sheep panda-sheep approved these changes

@critical27 critical27 critical27 approved these changes

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@bright-starry-sky @Shylock-Hg @cangfengzhs @critical27 @panda-sheep @Sophie-Xie