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Type:
Bug
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Resolution: Unresolved
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Priority:
Major - P3
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None
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Affects Version/s: None
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Component/s: None
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None
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Query Execution
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ALL
SBE-eligible queries containing set operations like $setEquals can pass when the same queries run on classic fail:
db.foo.insert({a: 1})
// Uses classic
> db.foo.aggregate([{$project: {p: {$setEquals: ["$a", "$b"]}}}])
PlanExecutor error during aggregation :: caused by :: All operands of $setEquals must be arrays. 1-th argument is of type: double
> db.foo.aggregate([{$project: {p: {$setEquals: ["$missing", "$b"]}}}])
PlanExecutor error during aggregation :: caused by :: All operands of $setEquals must be arrays. 1-th argument is of type: missing
// Uses SBE
> db.foo.aggregate([{$project: {p: {$setEquals: ["$a", "$b"]}}}, {$group: {_id: null}}])
{ "_id" : null }
> db.foo.aggregate([{$project: {p: {$setEquals: ["$missing", "$b"]}}}, {$group: {_id: null}}])
{ "_id" : null }
Looks like there are tests for this, but the queries do not use SBE, so the issue was not exposed.