Tatsuo Ishii <t-ishii(at)sra(dot)co(dot)jp> writes:
>> Something is rotten in the state of Denmark...
> These all oddness are caused by the parser (makeIndexable).
Ah-hah, I'm sure you're right. That makes *two* serious bugs in
makeIndexable. (We still don't have an adequate solution
for its known problem in non-C locales...)
> It seems that the only solution is checking '|' to see if it appears
> in the target regexp and giving up the optimization in that case.
I'm feeling a strong urge to just rip out makeIndexable until
it can be redesigned... how many other problems has it got
that we haven't stumbled upon?
regards, tom lane