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Column vs Row Stores: How do they compare?

Yesterday I’ve asked on Twitter about technical papers looking at column-stores vs row-stores. Most of the answers I’ve got are pointing to the research done by Daniel Abadi: Papers and Technical Reports. I’ll start with:

There’s also a discussion on this topic on Hacker News. Summarizing the points in that thread:

  • data for columns is stored together requiring less disk seeks when reading
  • this makes them good for aggregation on a few columns
  • when complete rows are needed this might make them worse
  • inserts, update, deletes could be slower in column-stores
  • more effective compression (same data types per column); this leads to less storage space

Justin Sheehy, Benjamin Darfler, Nicolae Claudius

Original title and link: Column vs Row Stores: How do they compare? (NoSQL database©myNoSQL)