4 ms·

Can you elaborate on the topic of a "relational data model on top of a hash map"? Are there any books that cover the concepts?

• gpderetta 7y ago
  not the parent (but I like their thinking); I think the key concept is to treat the hash map as just a (potentially primary) index over your data. Of course keeping secondary indices up to date is now the job of the application (or the abstraction layer)
  • kumarvvr 7y ago
    But isnt that just a sql db?
    • gpderetta 7y ago
      the idea is, if for whatever reason you do not have access to a proper DB, can you build your own relational model on top of the bits you have?
    • lincpa 7y ago
      But it is also Nosql (hash-map). It is flexible according to your needs, as sqldb or Nosql or data structure.
• lincpa 7y ago
  "a relational data model on top top of hash-map" is my original idea, and then combine [The Pure Function Pipeline Data Flow v3.0 with Warehouse/Workshop Model](https://github.com/linpengcheng/PurefunctionPipelineDataflow https://github.com/linpengcheng/PurefunctionPipelineDataflow), can perfectly realize the simplicity and unity combination of system architecture.
  • johnthescott 7y ago
    cockroach is built on top of a key/value index, i believe. https://www.cockroachlabs.com/blog/sql-in-cockroachdb-mapping-table-data-to-key-value-storage/ https://www.cockroachlabs.com/blog/sql-in-cockroachdb-mappin...