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// Tests that special stages which must run on mongos cannot be run in combination with an $out or
// $merge stage.
(function() {
"use strict";
const st = new ShardingTest({shards: 2, rs: {nodes: 1}, config: 1});
const db = st.s0.getDB("db");
const admin = st.s0.getDB("admin");
// Create a collection in the db to get around optimizations that will do nothing in lieu of
// failing when the db is empty.
assert.commandWorked(db.runCommand({create: "coll"}));
// These should fail because the initial stages require mongos execution and $out/$merge
// requires shard execution.
assert.commandFailedWithCode(
db.runCommand(
{aggregate: 1, pipeline: [{$listLocalSessions: {}}, {$out: "test"}], cursor: {}}),
ErrorCodes.IllegalOperation);
assert.commandFailedWithCode(
admin.runCommand(
{aggregate: 1, pipeline: [{$currentOp: {localOps: true}}, {$out: "test"}], cursor: {}}),
ErrorCodes.IllegalOperation);
assert.commandFailedWithCode(
db.runCommand({aggregate: 1, pipeline: [{$changeStream: {}}, {$out: "test"}], cursor: {}}),
ErrorCodes.IllegalOperation);
assert.commandFailedWithCode(db.runCommand({
aggregate: 1,
pipeline: [{$listLocalSessions: {}}, {$merge: {into: "test"}}],
cursor: {}
}),
ErrorCodes.IllegalOperation);
assert.commandFailedWithCode(admin.runCommand({
aggregate: 1,
pipeline: [{$currentOp: {localOps: true}}, {$merge: {into: "test"}}],
cursor: {}
}),
ErrorCodes.IllegalOperation);
assert.commandFailedWithCode(
db.runCommand(
{aggregate: 1, pipeline: [{$changeStream: {}}, {$merge: {into: "test"}}], cursor: {}}),
ErrorCodes.IllegalOperation);
st.stop();
}());
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