Resolution: Won't Do
Fix Version/s: 4.x
Other database systems allow system variables to be retrieved and set via their query interface:
Proposing the following CQL syntax for retrieving variables:
SHOW VARIABLE 'variable';
Proposing the following CQL syntax for setting variables:
SET VARIABLE 'variable'='value' ;
The output of SHOW VARIABLES; will be a superset of the actual values that can be set with SET VARIABLE, as not all values are safe to change after starting the node.