On 5 Jul 2018, at 7:30am, Clemens Ladisch <clem...@ladisch.de> wrote:

> The expression "x = x" will fail for NULL, but succeed for everything
> else.  So you can use that to implement a "not-NULL ELSE"

Wow.  That has to be the most counter-intuitive feature of SQLite.  I 
understand why it works, but I still don't like it.  Thanks for posting it.

Hmm.  Yes, "x != x" works too.  I forgot to check "x IS NOT x".

Simon.
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