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Generate IndexMergePath for DNF filters #10518

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hailanwhu opened this issue May 17, 2019 · 0 comments · Fixed by #10512
Closed

Generate IndexMergePath for DNF filters #10518

hailanwhu opened this issue May 17, 2019 · 0 comments · Fixed by #10512
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@hailanwhu
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type/enhancement The issue or PR belongs to an enhancement. type/new-feature

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@hailanwhu
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Feature Request

Is your feature request related to a problem? Please describe:

In order to access a table using multiple indexes, we first need to generate the possible access paths using multiple indexes.

Describe the feature you'd like:
After logical optimization, all constraints for a table are collected and we can combine these constraints with current accessible indexes to generate possible IndexMergePath.

Describe alternatives you've considered:

Teachability, Documentation, Adoption, Migration Strategy:
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planner: generate IndexMergePath in physical optimization
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@eurekaka @hailanwhu