Hi, could you help me? I am reading documentation on RelOptInfo in version
7.3.4 and have come across "RT indexes" in the explanation. Could you tell
me what they are? They are mentioned in file src/include/nodes/relation.h in
version 7.3.4. They seem to be some kind of unique identifiers of relations,
but I have not been able to find a reference to them in PostgreSQL
documentation.
Many thanks,
Rada