Michel Pelletier <pelletier.mic...@gmail.com> writes: > On Wed, Oct 23, 2024 at 8:21 AM Tom Lane <t...@sss.pgh.pa.us> wrote: >> Another thing that confuses me is why there's a second flatten_matrix >> operation happening here. Shouldn't set_element return its result >> as a R/W expanded object?
> That confuses me too, and my default assumption is always that I'm doing it > wrong. set_element does return a R/W object afaict, here is the return: > https://github.com/OneSparse/OneSparse/blob/main/src/matrix.c#L1726 Hmph. That seems right. Can you add errbacktrace() to your logging ereports, in hopes of seeing how we're getting to flatten_matrix? Or break there with gdb for a more complete/reliable stack trace. regards, tom lane