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Feature: support expression table scan #15259

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xudong963 opened this issue Apr 18, 2024 · 4 comments · Fixed by #15561
Closed

Feature: support expression table scan #15259

xudong963 opened this issue Apr 18, 2024 · 4 comments · Fixed by #15561
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@xudong963 @Dousir9
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C-feature Category: feature

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@xudong963
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Summary

Currently, databend has ConstantTableScan which is mainly used by Values(...).

In #15255, Values contains a column that isn't the constant value but expression. To address the issue and improve the ability of Values(...), we should make ConstantTableScan more flexible and support ExpressionTableScan.
@xudong963 xudong963 added the C-feature Category: feature label Apr 18, 2024
@inviscid
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Is there any estimate on when this might get selected for development?

@Dousir9
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Dousir9 commented Apr 25, 2024 •
edited

Is there any estimate on when this might get selected for development?

@inviscid I am working on it and recursive cte.

@inviscid
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inviscid commented May 1, 2024

@Dousir9 Excellent to hear you picked this up. I was wondering if you had an ETA or need any help with testing.

@Dousir9
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Dousir9 commented May 2, 2024

@inviscid Thanks for your help, expect a PR within a week.

@Dousir9 Dousir9 mentioned this issue May 17, 2024
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feat(planner): support ExpressionScan and CacheScan Dousir9/databend
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@inviscid @xudong963 @Dousir9