James Cloos <cloos@jhcloos.com> writes:
> Is there any contraindication to recasting:
> foo ILIKE 'bar'
> into:
> LOWER(foo) LIKE LOWER('bar')
In some locales those are not equivalent, I believe, or at least
shouldn't be. (What the current code actually does is a separate
question.)
> Perhaps the parser could read the former as the latter?
Not unless the equivalence can be shown to be exact, which I doubt.
In any case it's not obvious why LOWER rather than UPPER.
regards, tom lane