[Bug] A large number of nulls causes the insert to be slower #49847

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Open

2 of 3 tasks

zhuxt2015 opened this issue Apr 7, 2025 · 1 comment

Open

2 of 3 tasks

[Bug] A large number of nulls causes the insert to be slower #49847

zhuxt2015 opened this issue Apr 7, 2025 · 1 comment

zhuxt2015 commented Apr 7, 2025 •

edited

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I had searched in the issues and found no similar issues.

Version

3.0.4

What's Wrong?

doris_profile.log
insert 10000 rows cost 24sec750ms，RowDistributionTime cost 23sec483ms， very slow

What You Expected?

Insertion performance was able to catch up with 2.0.4

How to Reproduce?

Refer to the table in the profile, simulate a large number of null values, and then create the same table and insert data into the table

Anything Else?

No response

Are you willing to submit PR?

Yes I am willing to submit a PR!

Code of Conduct

I agree to follow this project's Code of Conduct

Contributor

yiguolei commented Apr 16, 2025

I will take a look at this problem

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