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/**
* Basic test of sharding with a hashed shard key and other unique index. Does 2 things and checks
* for consistent error:
* 1. shard collection on hashed "a", ensure unique index {a:1, b:1}
* 2. reverse order
*/
(function() {
'use strict';
var s = new ShardingTest({shards: 1, mongos: 1});
var dbName = "test";
var collName = "foo";
var ns = dbName + "." + collName;
var db = s.getDB(dbName);
var coll = db.getCollection(collName);
// Enable sharding on DB
assert.commandWorked(db.adminCommand({enablesharding: dbName}));
// Shard a fresh collection using a hashed shard key
assert.commandWorked(db.adminCommand({shardcollection: ns, key: {a: "hashed"}}));
// Create unique index
assert.commandWorked(coll.createIndex({a: 1, b: 1}, {unique: true}));
jsTest.log("------ indexes -------");
jsTest.log(tojson(coll.getIndexes()));
// Second Part
jsTest.log("------ dropping sharded collection to start part 2 -------");
coll.drop();
// Create unique index
assert.commandWorked(coll.createIndex({a: 1, b: 1}, {unique: true}));
// shard a fresh collection using a hashed shard key
assert.commandWorked(db.adminCommand({shardcollection: ns, key: {a: "hashed"}}),
"shardcollection didn't worked 2");
s.printShardingStatus();
jsTest.log("------ indexes 2-------");
jsTest.log(tojson(coll.getIndexes()));
s.stop();
})();
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