On 2012-07-17, David Johnston <polobo(at)yahoo(dot)com> wrote:
> On Jul 17, 2012, at 2:32, Rafal Pietrak <rafal(at)zorro(dot)isa-geek(dot)com> wrote:
>>
>> Is that even possible to implement? (e.g.: "SELECT * FROM log WHERE
>> start_date <> 'XXXX-YY-ZZ' and end_date = 'ZZZZ-AA-BB'" - when both
>> start_date and end_date possibly have 'infinity')
>
> I was unclear. I intended "<>" to mean "greater than and less than comparisons" as opposed to not equals comparisons. Equality and inequality are two sides to the same coin.
confusingly in mathematics greater-than and less-than are classed as inequalities
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