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Feat: scaling approximate aggregate values #21

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taewhi opened this issue Aug 3, 2022 · 0 comments · Fixed by #22
Closed

Feat: scaling approximate aggregate values #21

taewhi opened this issue Aug 3, 2022 · 0 comments · Fixed by #22
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taewhi commented Aug 3, 2022

For AVG function, we do not have to scale the result of approximate aggregation
This is because the avg result is not affected even if the number of input rows is changed.

However, the approximate aggregate values have to be scaled up for other functions like SUM and COUNT.
We need to multiply the ratio | original table | / | synopsis table | to the approximate results.
@taewhi taewhi self-assigned this Aug 4, 2022
@taewhi taewhi linked a pull request Aug 4, 2022 that will close this issue
[Issue #21] Feat: scaling approximate aggregate values #22
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@taewhi taewhi closed this as completed in #22 Aug 4, 2022
taewhi added a commit that referenced this issue Aug 4, 2022
@taewhi
Merge pull request #22 from traindb-project/dev/issue-21
e5612f8 
[Issue #21] Feat: scaling approximate aggregate values
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[Issue #21] Feat: scaling approximate aggregate values traindb-project/traindb
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