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.
On Tue, Mar 3, 2015 at 6:57 AM, Sergei Golubchik <[email protected]> wrote: > Hi, Justin! > > On Mar 03, Justin Swanhart wrote: > > You can't drop a busy proc in production to replace it. Many users > > would get an error. This is the same reason views have had CoR for so > > long. So yes it is a big deal! > > Okay, I'm happy to know it. > My main reason for offering this GSoC project was syntax consistency. > Same syntax works identically for all objects, just as a user expects, > no gotchas or unpleasant surprises. > > > Anyway, what I want most are Antony Curtis' stored proc / parser > > changes (mdev 820 if I'm not mistaken). I am especially interested in > > table functions and external stored routines. > > Yes, I'd be happy to see them in 10.2. It's too early to tell what is > going to be there, but I'll certainly put them at the top of list. > > > I'd also like to discuss window functions too. I've implemented them > > in shard-query and have ideas about how to implement them in the > > server, but pluggable parser would be really useful here. > > Window functions have a good chance of being in 10.2, it's MDEV-6115. > But I don't think that somebody is working on MDEV-6115 yet. > > I'm afraid that a pluggable parser is practically impossible to do > with bison generated parsers. For a recursive descent parser - yes, but > not with bison parsers :( > > The best we can do, I think, is to generalize certain parts of the > parser by using a generic 'identifier' rule instead of a specific > hard-coded keyword token. We've done it a couple of times for plugins: > > in CREATE TABLE: > https://mariadb.com/kb/en/engine-defined-new-tablefieldindex-attributes/ > and in SHOW and FLUSH: > https://mariadb.com/kb/en/information-schema-plugins-show-and-flush-statements/ > > Regards, > Sergei > >
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