astronomy-commons/hats-tap

Translate ADQL's `BETWEEN` to appropriate Python

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#17 opened on 2025/12/02

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説明

Feature request

SELECT * FROM ppdb.DiaObject WHERE r_psfFluxMean BETWEEN 1090.0 and 1100.0

can be translated to

compute(ppdb.query("1090.0 <= r_psfFluxMean <= 1100.0"))

or

ppdb.open_catalog(..., filters=[('r_psfFluxMean', '>=', 1090), ('r_psfFluxMean', '<=', 1100)])
compute(ppdb)

At present, the second version is what the translator supports, but the Python "between" operator could be used once we have implemented the ability to translate to .query(). In either case, the translator needs to attach logic to the BETWEEN event.

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  • I have described the purpose of the suggested change, specifying what I need the enhancement to accomplish, i.e. what problem it solves.
  • I have included any relevant links, screenshots, environment information, and data relevant to implementing the requested feature, as well as pseudocode for how I want to access the new functionality.
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