Hi!
Currently I'm working on the compiler, which has this BNF: http://trac.doctrine-project.org/browser/trunk/query-language.txt I've done a lot of optimizations to be able to not touch the default nesting input level, but doing that I added a lot of restrictions that now are my bottlenecks.
I'm not sure I understand - how this compiler is related to input nesting level? What exactly you do there that requires 150+ levels of nesting on input?
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