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/* Tests that attempts to create indexes that already exist as of the createIndexes call are
* permitted inside multi-document transactions. Also test that attempts to create new
* indexes on existing collections are not permitted inside multi-document transactions.
*
* @tags: [uses_transactions,
* # Creating indexes inside multi-document transactions is supported only in v4.4 onwards.
* requires_fcv_44]
*/
(function() {
"use strict";
const session = db.getMongo().startSession({causalConsistency: false});
const collName = "create_existing_indexes";
let sessionDB = session.getDatabase("test");
let sessionColl = sessionDB[collName];
sessionColl.drop({writeConcern: {w: "majority"}});
assert.commandWorked(sessionDB.createCollection(collName, {writeConcern: {w: "majority"}}));
assert.commandWorked(sessionDB.runCommand({
createIndexes: collName,
indexes: [{key: {a: 1}, name: "a_1"}],
writeConcern: {w: "majority"}
}));
jsTest.log("Testing createIndexes on an existing index in a transaction");
session.startTransaction({writeConcern: {w: "majority"}});
assert.commandWorked(
sessionColl.runCommand({createIndexes: collName, indexes: [{key: {a: 1}, name: "a_1"}]}));
session.commitTransaction();
jsTest.log("Testing createIndexes on a conflicting index in a transaction (throws error)");
session.startTransaction({writeConcern: {w: "majority"}});
assert.commandFailedWithCode(
sessionColl.runCommand({createIndexes: collName, indexes: [{key: {a: -1}, name: "a_1"}]}),
ErrorCodes.IndexKeySpecsConflict);
assert.commandFailedWithCode(session.abortTransaction_forTesting(), ErrorCodes.NoSuchTransaction);
jsTest.log("Testing createIndexes on a new index in a transaction (throws error)");
session.startTransaction({writeConcern: {w: "majority"}});
assert.commandFailedWithCode(
sessionColl.runCommand({createIndexes: collName, indexes: [{key: {b: 1}, name: "b_1"}]}),
ErrorCodes.OperationNotSupportedInTransaction);
assert.commandFailedWithCode(session.abortTransaction_forTesting(), ErrorCodes.NoSuchTransaction);
session.endSession();
}());
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