On Jun 24, 2004, at 6:39 PM, sad wrote:
...IF ELSEIF ELSE
it's all clear
but what about unequality of BOOL type possible value set and IF alternatives
set
In my opinion the short answer is NULL is here because of the SQL standard. The SQL standard does not specify any kind of "IF alternative" for 3-valued logic afaik. Why should PostgreSQL go beyond what the standard specifies in this hairy area? Three-valued logic is something I strive to stay away from to the best of my ability, as it is far too complicated for my feeble mind.
Michael Glaesemann grzm myrealbox com
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