Tag a Shard Key Range
Define ranges based on the *shard key*
Any given range may only have *one* assigned tag
Example:
sh.addTagRange(
"demo.emails", // database.collection
{ continent: "Asia" }, { continent: "Australia" }, // range (min, max)
"ASIA" // tag
);
sh.addTagRange(
"demo.emails",
{ continent: "Europe" }, { continent: "Europe" },
"EUR"
);