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Optimize more entity filter expressions #6498

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seadowg opened this issue Nov 5, 2024 · 2 comments
Open

Optimize more entity filter expressions #6498

seadowg opened this issue Nov 5, 2024 · 2 comments

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@seadowg
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seadowg commented Nov 5, 2024

We want more filter expressions on entity lists to be faster and not require the full list in memory. We've currently made these optimizations for = ("eq") expressions that compare values to the entity ID (name) or an entity property. We want to expand this so that the following predicates on entity items have the same performance characteristics:

  • label = <value>
  • <id/property/label> = <value 1> and <id/property/label> = <value 2>
  • <id/property/label> = <value 1> or <id/property/label> = <value 2>
  • id != <value>
@seadowg seadowg converted this from a draft issue Nov 5, 2024
@seadowg seadowg moved this from ready to not ready in ODK Collect Nov 5, 2024
@seadowg
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seadowg commented Nov 5, 2024

@lognaturel are there other expressions you think we should target here? Also, are any of the ones I've included seem like they're not as important?

@lognaturel
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That seems like a good list and it feels priority ordered from top to bottom. Maybe < and > are the same priority as !=

Relatedly, we've also talked about analyzing the form to identify columns that should be indexed. That could be a separate issue or part of this work.

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