Available in versions: Dev (3.18) | Latest (3.17)

This is experimental functionality, and as such subject to change. Use at your own risk!

Merge BIT_NOT with BIT_NOR

Applies to ✅ Open Source Edition   ✅ Express Edition   ✅ Professional Edition   ✅ Enterprise Edition

The BIT_NOT function bitwise inverts its argument value. If the argument value is a BIT_NOR function, we can simply merge the two functions.

Using Settings.transformPatternsBitNotNor, the following transformations can be achieved:

-- With Settings.transformPatternsBitNotNor active, this:
SELECT
  ~(bitnor(a, b)),
  ~(bitor(a, b))
FROM tab;

-- ... is transformed into the equivalent expression:
SELECT 
  bitor(a, b), -- ~(bitnor(a, b))
  bitnor(a, b) -- ~(bitor(a, b))
FROM tab;

Feedback

Do you have any feedback about this page? We'd love to hear it!

The jOOQ Logo