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Compute function: mask #439

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gatesn opened this issue Jul 9, 2024 · 1 comment
Closed

Compute function: mask #439

gatesn opened this issue Jul 9, 2024 · 1 comment
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@gatesn
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gatesn commented Jul 9, 2024

Mask is a compute function that takes a boolean array and returns all rows marked true.

Take function should delegate to mask if the indices array is strict sorted.

(Equivalent of "take" but with booleans)
@gatesn gatesn added this to the V0 milestone Jul 9, 2024
@gatesn gatesn changed the title Compute Function: mask Compute function: mask Jul 9, 2024
@a10y a10y mentioned this issue Jul 15, 2024
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a10y added a commit that referenced this issue Jul 16, 2024
@a10y
Add FilterFn trait + default implementation (#458)
9fa2f6e 
Implement `filter` and corresponding `FilterFn` array trait

See #439
@a10y
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a10y commented Jul 18, 2024

This was added in #458 , using the name filter rather than mask.

Currently it's implemented using the arrow_select::filter kernel, there is ongoing work to improve the performance, see #470

@gatesn gatesn closed this as completed Jul 18, 2024
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