Increase `LeafsStore.pageSize` and decreased `.leadingBufferZone` (plus deactivated `autoLoad`
*Materialized* "view" - `node_path` table: The `dirty` column will be used to implement deferred refresh  via the invalidation trigger. The `expiry` column will be used to deal with special cases where we can’t count on a database event to trigger a refresh.
Materialized view 'node_path': Tweaking SQL functions
Fix: Apparently insert is by `lexicographic` position of the column `names` and *not* the names itself .. what a primitive language.