arangosh> db.example.insert({"a" : 1});
{
"_id" : "example/15727",
"_key" : "15727",
"_rev" : "15727"
}
arangosh> db.example.update("example/19988371",
........> { "b" : null, "c" : null, "d" : 3 });
{
"_id" : "example/19988371",
"_key" : "19988371",
"_oldRev" : "15723",
"_rev" : "15730"
}
arangosh> db.example.document("example/19988371");
{
"_id" : "example/19988371",
"_key" : "19988371",
"_rev" : "15730",
"b" : null,
"c" : null,
"d" : 3
}
arangosh> db.example.update("example/19988371", { "a" : null }, false, false);
{
"_id" : "example/19988371",
"_key" : "19988371",
"_oldRev" : "15730",
"_rev" : "15734"
}
arangosh> db.example.document("example/19988371");
{
"_id" : "example/19988371",
"_key" : "19988371",
"_rev" : "15734",
"b" : null,
"c" : null,
"d" : 3
}
arangosh> db.example.update("example/19988371",
........> { "b" : null, "c": null, "d" : null }, false, false);
{
"_id" : "example/19988371",
"_key" : "19988371",
"_oldRev" : "15734",
"_rev" : "15738"
}
arangosh> db.example.document("example/19988371");
{
"_id" : "example/19988371",
"_key" : "19988371",
"_rev" : "15738"
}