On Fri, May 15, 2015 at 4:38 PM, Dave Cramer <pg@fastcrypt.com> wrote: >> I don't really want to take a violently strong position on this >> without understanding what's really going on here. >> > Well our solution was to use ?? but that does mean we have to do some extra > parsing which in a perfect world wouldn't be necessary.
So what about strings quoted with '' or $$ or $something$ - how would you handle those?
I hadn't realised that the JDBC driver allowed the ? operator to be escaped as ??. It seems to work indeed (at least with version 9.4-1201 of the JDBC driver).
$$....?$$ also works. I guess the JDBC drivers tries to parse literals first and escapes them accordingly.
That said, I'd still suggest providing new operators and deprecating the ones containing a question mark if possible. (There are 8 distinct operator names like this: "?-", "?&", "?", "?#", "?||", "?-|", "?|" and "<?>".)
I think it would be nicer to have a single mechanism that can be used consistently across multiple languages (?? doesn't work for ECPG, for example), considering that ? as a placeholder seems quite common.
