AW: [HACKERS] relation ### modified while in use

[Zeugswetter Andreas SB]

> > The problem at hand is that > > a plan may be invalidated before it is even finished building. Do you > > expect the parse-rewrite-plan-execute pipeline to be prepared to back up > > and restart if we notice a relation schema change report halfway down the > > process? Yes, during the processing "of one single statement", (and this includes the parse/plan phase) we will need to hold a shared lock from the first access, as by our previous discussion. Andreas