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/**
* Tests if queries against time-series collections in transactions work as expected.
* @tags: [
* assumes_against_mongod_not_mongos,
* requires_fcv_49,
* uses_transactions,
* ]
*/
(function() {
"use strict";
load("jstests/core/timeseries/libs/timeseries.js");
if (!TimeseriesTest.timeseriesCollectionsEnabled(db.getMongo())) {
jsTestLog("Skipping test because the time-series collection feature flag is disabled");
return;
}
const tsTestColl = db.timeseries_txn_ts_coll;
tsTestColl.drop();
const regularColl = db.timeseries_txn_regular_coll;
regularColl.drop();
assert.commandWorked(db.createCollection(regularColl.getName()));
const timeFieldName = "time";
// Create the time-series collection with data outside of a txn session because createCollection
// commands for time-series will throw ErrorCodes.OperationNotSupportedInTransaction.
assert.commandWorked(
db.createCollection(tsTestColl.getName(), {timeseries: {timeField: timeFieldName}}));
let doc1 = {[timeFieldName]: ISODate("2021-03-01T00:00:00.000Z"), x: 1, _id: 1};
let doc2 = {[timeFieldName]: ISODate("2021-03-01T01:00:00.000Z"), x: 2, _id: 2};
let doc3 = {[timeFieldName]: ISODate("2021-03-01T02:00:00.000Z"), x: 2, _id: 3};
assert.commandWorked(tsTestColl.insert(doc1));
assert.commandWorked(tsTestColl.insert(doc2));
assert.commandWorked(tsTestColl.insert(doc3));
const session = db.getMongo().startSession();
const sessionDB = session.getDatabase(db.getName());
const sessionTsColl = sessionDB.getCollection(tsTestColl.getName());
// Test a simple find over a time-series collection.
session.startTransaction();
assert.eq(3, sessionTsColl.find().itcount());
let doc = sessionTsColl.findOne({_id: 1, x: 1});
assert.neq(null, doc);
assert.docEq(doc1, doc);
session.commitTransaction();
// Test a read from a time-series collection then a subsequent insert into a regular collection. All
// writes to time-series collections are banned within transactions.
const sessionRegularColl = sessionDB.getCollection(regularColl.getName());
session.startTransaction();
let doc4 = sessionTsColl.findOne({_id: 1, x: 1});
assert.commandWorked(sessionRegularColl.insert(doc4));
// The last insert should be visible in this session.
doc4 = sessionRegularColl.findOne({_id: 1, x: 1});
assert.neq(null, doc4);
assert.docEq(doc4, doc1);
session.commitTransaction();
// Verify that after a commit the update persists.
let doc5 = regularColl.findOne({_id: 1, x: 1});
assert.neq(null, doc5);
assert.docEq(doc5, doc4);
})();
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