Ostensibly this article is about the wins you can get as far as disk size is concerned by using cstore_fdw, but I can't help but notice they weren't creating any indices on this data.

By creating a simple GIN index on the regular jsonb table, you could dramatically improve those query times. So if your workload doesn't require that you do a table scan for all records then the tradeoff in terms of disk space would more than make up for the perf wins provided by the index.

Does anyone know if cstore supports creating indices of any kind, let alone GIN?