In r992993 the NODES table design was added. The SVN_WC__NODES conditional was created to enable known-working code for this schema. The NODES conditional will be used to flag sections which need to be further looked into for modification, just as with SINGLE_DB and NODE_DATA.
It would be my idea to work toward a situation where - under SVN_WC__NODES - everything is written to two tables, verifying their equality when reading the data back from them. Then when we're able to run in that mode, we can switch to the NODES table from the current model of three tables. I'm going to tear down SVN_WC__NODE_DATA in the process. There are no guarantees the code will remain in working state with that conditional. Bye, Erik.