Ack. On 17 November 2011 12:23, William ML Leslie <william.leslie....@gmail.com> wrote: > On 17 November 2011 12:13, Elefterios Stamatogiannakis <est...@gmail.com> > wrote: >> Pypy seems to not jit at all when a (pypy) Python function is called from C. > > Calls to native functions must be residualised, as there is no way to > tell what state gives rise to the call to the UDF. > > If there was a loop inside the UDF, that would still be compiled. But > the loop that occurs in the query must just call the C function in the > usual way, as the JIT has no idea what it might do.
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