Fix corner-case coredump in _SPI_error_callback(). I noticed that _SPI_execute_plan initially sets spierrcontext.arg = NULL, and only fills it in some time later. If an error were to happen in between, _SPI_error_callback would try to dereference the null pointer. This is unlikely --- there's not much between those points except push-snapshot calls --- but it's clearly not impossible. Tweak the callback to do nothing if the pointer isn't set yet.
It's been like this for awhile, so back-patch to all supported branches. Branch ------ REL9_6_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/c26d46ff6d6e10e8ac1ecf80f8cf9014e3efe418 Modified Files -------------- src/backend/executor/spi.c | 3 +++ 1 file changed, 3 insertions(+)
