Andrew Dunstan <[EMAIL PROTECTED]> writes: > Tom Lane wrote: >> Andrew Dunstan <[EMAIL PROTECTED]> 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 ---------------------------(end of broadcast)--------------------------- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match