Opened 2 years ago

Closed 5 weeks ago

#893 closed defect (fixed)

null keyword in operations

Reported by: pbaumann Owned by: mtarigradschi
Priority: major Milestone: 9.5
Component: qlparser Version: development
Keywords: Cc: pbaumann
Complexity: Medium

Description

Suggest to introduce "is null" as an induced comparison, with the meaning: "true if cell has one of the null values defined in the participating coverage, false otherwise".

Examples:

  • c is null
  • c is not null (this is crafted along SQL, but shatters our grammar, so to be inspected)

Change History (5)

comment:1 Changed 2 years ago by dmisev

  • Milestone changed from 9.1 to 9.2

comment:2 Changed 6 months ago by dmisev

  • Milestone changed from 9.2 to 10.0

comment:3 Changed 6 weeks ago by dmisev

  • Owner changed from dmisev to mtarigradschi
  • Status changed from new to assigned

Note: c is not null can be internally implemented as a transformation to not (c is null)

comment:4 Changed 5 weeks ago by dmisev

  • Milestone changed from 10.0 to 9.5

comment:5 Changed 5 weeks ago by dmisev

  • Resolution set to fixed
  • Status changed from assigned to closed
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