44 lines
1.8 KiB
JavaScript
44 lines
1.8 KiB
JavaScript
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/**
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* Ensure that unique indexes are not updated on running an empty collMod command with FCV=4.0.
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* Creates a unique index, downgrades the FCV, and runs collMod on the collection.
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* @tags: [requires_replication, requires_wiredtiger]
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*/
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(function() {
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'use strict';
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const newIndexFormatVersion = 12;
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const rst = new ReplSetTest({nodes: [{}, {rsConfig: {priority: 0, votes: 0}}]});
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const nodes = rst.startSet();
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rst.initiate();
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let dbName = 'test';
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let collName = 't';
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const primary = rst.getPrimary();
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const primaryDb = primary.getDB(dbName);
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const secondary = rst.getSecondary();
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const coll = primaryDb.getCollection(collName);
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assert.commandWorked(coll.createIndex({a: 1}, {unique: true}));
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assert.writeOK(coll.insert({_id: 0, a: 1}));
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assert.commandWorked(primaryDb.adminCommand({setFeatureCompatibilityVersion: '4.0'}));
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assert.commandWorked(primaryDb.runCommand({collMod: coll.getName()}));
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// Wait for replication of the index creation.
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rst.awaitReplication();
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const secondaryDb = secondary.getDB(dbName);
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const coll_secondary = secondaryDb.getCollection(collName);
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const index = coll_secondary.getIndexes();
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assert.eq(index[1].unique, true, "Expected a unique index: " + tojson(index[1]));
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// Validate that the unique index is not updated on the secondary after an empty collMod
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// command.
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const indexFormatVersion = coll_secondary.aggregate({$collStats: {storageStats: {}}})
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.next()
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.storageStats.indexDetails[index[1].name]
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.metadata.formatVersion;
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assert.eq(indexFormatVersion,
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newIndexFormatVersion,
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"Expected index format version 12 for the unique index: " + tojson(index[1]));
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rst.stopSet();
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})();
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