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Feature: User Defined Aggregate Function (UDAF) based on arrow-udf create #16729

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sundy-li opened this issue Oct 30, 2024 · 1 comment
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A-query Area: databend query C-feature Category: feature

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@sundy-li
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sundy-li commented Oct 30, 2024

Summary

Description for this feature.

Now we already introduce arrow-udf (js/python/wasm) into databend for scalar functions.

It's time to introduce UDAF.

Example codes:

https://github.com/arrow-udf/arrow-udf/blob/47624ea3ca6c6a007545a8d66d51e38f235b8c15/arrow-udf-python/tests/python.rs#L507-L608

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@forsaken628
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forsaken628 commented Dec 23, 2024

https://crates.io/crates/arrow-udf-wasm
wasm doesn't implement an aggregation api, so I need to fix that!

update: A little more trouble than expected, lower priority

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Labels
A-query Area: databend query C-feature Category: feature
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