Available as add-on

Physical Schema Design - Projections

A projection defines how the records specified by logical tables are actually stored and distributed across the cluster nodes. The following parameters of a physical data representation can be configured using a projection:

  • Columns to be included and column encoding (run-length encoding, delta encoding, and so on)

  • Column ordering

  • Segmentation: The rows to keep on the same node and the projections to be replicated instead of split

If a superprojection is not defined for the table, it is created automatically when the first row is inserted into the table. 

Select from the following topics to get more information: