Hi
I discovered that if you build with -DEXEC_BACKEND on a Unix system
and then try to start a background worker, it dies in
InitializeLatchSupport:
TRAP: FailedAssertion("!(selfpipe_readfd == -1)", File: "latch.c", Line: 161)
That's because InitPostmasterChild is called twice. I can
successfully use regular parallel query workers and bgworkers created
by extensions if I apply the attached patch.
--
Thomas Munro
http://www.enterprisedb.com