SQL on Data Structures Backed by High-Density Memory Store
If you configure the
IMap data structure to use
High-Density Memory Store, you have to
create at least one global High-Density Memory Store index to run an SQL statement.
This limitation comes from the fact that off-heap
IMap data structure is not
thread-safe, and we use thread-safe concurrent indexes based on the B+ Tree implementation
IMaps scan operators.