Andrew Dunstan <andrew@dunslane.net> writes:
> Tom Lane wrote:
>> Andrew Dunstan <andrew@dunslane.net> writes:
>>> Yeah, quite possibly. I'm also wondering if we are wasting effort
>>> downcasing what will in most cases be the same pattern over and over
>>> again. Maybe we need to look at memoizing that somehow, or at least test
>>> to see if that would be a gain.
>>
>> Someone (Itagaki-san IIRC) suggested that we ought to convert
>> "x ILIKE y" into "lower(x) LIKE lower(y)" at some fairly early
>> stage, definitely before constant-folding in the planner.
>>
> Sounds like a TODO item. I'm already concerned a bit about scope creep
> for this item.
Agreed, I don't want to tackle this right now --- I'm just suggesting
it's probably a better answer than memoizing at runtime.
regards, tom lane