opengeospatial / opengeospatial/ogcapi-features

Related concerns around spec description of IS NULL and IS NOT NULL

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CQL2
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Description

I'm looking at: https://github.com/opengeospatial/ogcapi-features/blob/master/cql2/standard/clause_6_basic_cql2.adoc

Few related concerns:

  1. This doesn't mention "IS NOT NULL" as allowed as an operator, but used in an example for IS NULL.
  2. I assume "NOT IS NULL" would also work, but this isn't mentioned.
  3. There's no example using just "IS NULL"
  4. Is there a CQL JSON Operator "isNotNull" also?

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Research direction

Start with cql2/standard/clause_6_basic_cql2.adoc and review how IS NULL is described and used in its example. Verify whether IS NOT NULL, NOT IS NULL, and a JSON isNotNull operator are supported, then update the specification with the resolved syntax and representative examples.

Written by the indexing model from the issue text.

Assessment

Domain
documentation
Issue type
Documentation
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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