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arangodb/Documentation/Examples/ensureHashIndex.generated

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arangosh> db.test.ensureHashIndex("a");
{
"id" : "test/649155996",
"type" : "hash",
"fields" : [
"a"
],
"selectivityEstimate" : 1,
"unique" : false,
"sparse" : false,
"isNewlyCreated" : true,
"code" : 201
}
arangosh> db.test.save({ a : 1 });
{
"_id" : "test/649418140",
"_rev" : "649418140",
"_key" : "649418140"
}
arangosh> db.test.save({ a : 1 });
{
"_id" : "test/649614748",
"_rev" : "649614748",
"_key" : "649614748"
}
arangosh> db.test.save({ a : null });
{
"_id" : "test/649876892",
"_rev" : "649876892",
"_key" : "649876892"
}