On 12/18/12 5:10 PM, Robert Haas wrote: > I can't help but suspect that the way we handle keywords today is > monumentally inefficient. The unreserved_keyword products, et al, > just seem somehow badly wrong-headed. We take the trouble to > distinguish all of those cases so that we an turn around and not > distinguish them. I feel like there ought to be some way to use lexer > states to handle this - if we're in a context where an unreserved > keyword will be treated as an IDENT, then have the lexer return IDENT > when it sees an unreserved keyword.
The problem would be the lookahead. You need to know the next token before you can decide what context the current one is in. -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
