Logging queries executed by SPI_execute

Hi there,

I have been trying to debug what queries an extension is firing. After reading
the code for the extension, I noticed that all the statements are fired via the
SPI interface, most specifically, using the SPI_execute* family of functions.

However, the problem is that these statements don't seem to feature in the
logfile. It has become a bit of a "dead end" for me to fully analyse what
queries are fired in the end.

My postgresql.conf is fairly simple, but I have added "log_statement = 'all'"
and thus was expecting to see information for these statements too.

Is there anything I am missing? Some configuration or perhaps another way to
find out about these statements?

It may not be relevant, but the extension I am having a look at is pg_repack if
anyone is interested. I am trying to get a deeper understanding of what the
function repack_apply does.

Thanks,
Marcelo.