src/main/java/org/apache/datasketches/server/MergeHandler.java (1 line):
	- line 143: // TODO: Check for sketch value types with distinct counting?


src/main/java/org/apache/datasketches/server/DataQueryHandler.java (1 line):
	- line 215: // TODO: consider valuesPMF vs valuesCDF calls to allow a mix?


src/main/java/org/apache/datasketches/server/SketchServerConfig.java (1 line):
	- line 45: * TODO: define config options