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Re: stored programs



What about providing an alternate parser in the server but only for plugins
to use?  The plugins rewrite the whole query, not modify the syntax tree so
there is no fiddling with the query on THD, it is rewritten before the
bison parser gets it.


On Tue, Mar 3, 2015 at 8:07 AM, Sergei Golubchik <serg@xxxxxxxxxxx> wrote:

> Hi, Justin!
> On Mar 03, Justin Swanhart wrote:
> > So uhmm, use a new parser.  Like the one antony wrote in LLVM? :)  I
> > mean, we would like to have window functions, CTE, and all those other
> > fun things. SQL-92 is a not relevant anymore.
> In MySQL times we've tried to replace a parser. Twice.
> Antony has spent a year on that - that was one of the attempts.
> We're still using the old one, so neither project was a success.
> And Oracle started "parser refactoring" in 5.7, but they're doing it
> piece-wise now, not trying to replace everything at once. And they'll
> have to stay with bison this way.
> What I mean - we very much want to use a new parser. We really do.
> But it's just such a huge project :(
> Regards,
> Sergei

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