Ccls: Can compilationDatabaseDirectory be changed after init?

The ccls documentation section explains that compilationDatabaseDirectory should be set during initialization.

While settings it to build fits most cases, sometimes I’d like to point the language server to a different compile commands database. For instance, build typically holds my debug/development configuration, while build_release is the release configuration I use for benchmarking and profiling.

Is there an easy way to change which database is used?