Available in versions: Dev (3.19) | Latest (3.18) | 3.17

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

This documentation is for the unreleased development version of jOOQ. Click on the above version links to get this documentation for a supported version of jOOQ.

Inverse hyperbolic functions

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

Some dialects may not support all trigonometric functions.

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

-- With Settings.transformPatternsInverseHyperbolicFunctions active, this:
SELECT
  LN(x + SQRT(SQUARE(x) + 1)),
  LN(x + SQRT(SQUARE(x) - 1)), 
  LN((1 + x) / (1 - x)) / 2),
  LN((x + 1) / (x - 1)) / 2)
FROM tab;

-- ... is transformed into the equivalent expression:
SELECT
  ASINH(x), -- LN(x + SQRT(SQUARE(x) + 1))
  ACOSH(x), -- LN(x + SQRT(SQUARE(x) - 1)) 
  ATANH(x), -- LN((1 + x) / (1 - x)) / 2)
  ACOTH(x)  -- LN((x + 1) / (x - 1)) / 2)
FROM tab;

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