Re: [PR] Implement distinct in AggFunction [iotdb]

Sun, 12 Jan 2025 07:31:50 -0800 


Wei-hao-Li commented on PR #14623:
URL: https://github.com/apache/iotdb/pull/14623#issuecomment-2585778865

   > I noticed that In Trino there's a MarkDistinctOperator, does it have 
something to do with Distinct Function? <img alt="截屏2025-01-11 17 25 18" 
width="1106" 
src="https://private-user-images.githubusercontent.com/108499334/402248480-398b7753-7996-4148-87ca-062833f39460.png?jwt=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJnaXRodWIuY29tIiwiYXVkIjoicmF3LmdpdGh1YnVzZXJjb250ZW50LmNvbSIsImtleSI6ImtleTUiLCJleHAiOjE3MzY2OTU5NzMsIm5iZiI6MTczNjY5NTY3MywicGF0aCI6Ii8xMDg0OTkzMzQvNDAyMjQ4NDgwLTM5OGI3NzUzLTc5OTYtNDE0OC04N2NhLTA2MjgzM2YzOTQ2MC5wbmc_WC1BbXotQWxnb3JpdGhtPUFXUzQtSE1BQy1TSEEyNTYmWC1BbXotQ3JlZGVudGlhbD1BS0lBVkNPRFlMU0E1M1BRSzRaQSUyRjIwMjUwMTEyJTJGdXMtZWFzdC0xJTJGczMlMkZhd3M0X3JlcXVlc3QmWC1BbXotRGF0ZT0yMDI1MDExMlQxNTI3NTNaJlgtQW16LUV4cGlyZXM9MzAwJlgtQW16LVNpZ25hdHVyZT05MzQ1NjVhM2Q2NDUxNWY5N2ZmZDEwM2MxOTVlYjQzNjY5Zjg2YjE5ODg2ZTRmNWM4MDEwMDc0NGIzOWIyZmFmJlgtQW16LVNpZ25lZEhlYWRlcnM9aG9zdCJ9.jpLAU8UXh8TlImsZfGN77oeedhmnNtwWzIdGj7eXKD4";>
   
   Yes, it is another implement of AggFunc-distinct, it will be introduced to 
our code in next optimizer PR (You can see design doc of this feature to see 
more details).


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