x.md

• Add methods for data page to update it's parts. It will have Link and byte array as args.
• Fix PageIds mismatch in Space and DataPages. DataPages always adds pages with incremental PageId's first. But in Space it can become different PageId. For example SpaceInfo is always 0, then primary index, so data is at least 3rd. After read we will get page with 3 as id, but all Link's in indexes will be wrong. (in progress by ATsibin)
• Check PersistTable macro and see Space type that is generated (Space describes file structure). You need to add methods to add pages to the Space correctly. You must be careful with Intervals that describes data layout.
• Check indexset and see how to map internal nodes to disk representation. Also there must be possibility to set node size to meet page size correctly.
• Add PesristEngine object to WorkTable. It will contain queue of write operations to sync in-memory with file.
  • Create operation as struct representation. As I think it can be enum of Create, Update and Delete. Create ops contains primary + secondary keys data, Link on data page and data as bytes array. Update should just contain Link on data page and data as bytes array. Delete should contain primary + secondary keys data to find and remove them from index pages (index pages are not optimised now, empty links are also not optimised now).
  • Create PesristEngine object that will contain queue of ops and will apply them to the file. (in progress by me)
  • Add logic to generated tables code in methods to push operations into PesristEngine.