Since the subroots will surely link back to the same glob struct, this
necessarily leads to infinite recursion. Doh. Found while trying to
debug some other code.
/* NB: this isn't a complete set of fields */
WRITE_NODE_FIELD(paramlist);
WRITE_NODE_FIELD(subplans);
- WRITE_NODE_FIELD(subroots);
WRITE_BITMAPSET_FIELD(rewindPlanIDs);
WRITE_NODE_FIELD(finalrtable);
WRITE_NODE_FIELD(finalrowmarks);