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

The NOT unary operator applied to OR can be distributed applying De Morgan's law.

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

-- With Settings.transformPatternsNotAnd active, this:
  NOT (x = 1 OR y = 2),
  NOT (x = 1 OR y = 2 OR z = 3)
FROM tab;

-- ... is transformed into the equivalent expression:
  NOT (x = 1) AND NOT (y = 2),
  NOT (x = 1) AND NOT (y = 2) AND NOT (z = 3)
FROM tab;


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