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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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Storage Execution
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ALL
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Execution Team 2024-04-01
If you have documents and an index {a: 1}:
// Collection: $recordId: 1 -> {_id: 1, a: 1} $recordId: 2 -> {_id: 2 a: 2} $recordId: 3 -> {_id: 3, a: 3} // {a: 1} index: {a: 1} -> $recordId: 1 {a: 2} -> $recordId: 2 {a: 3} -> $recordId: 3
Perform an insert via applyOps:
db.runCommand({
applyOps: [
{
"op" : "i",
"ns" : "test.mycoll",
"o" : {
"_id" : 34,
"a": 34
},
"o2" : {
"_id" : 34,
},
"rid": NumberLong(1)
}
]
})
In the collection, we end up overwriting the document. But in the index, we add a new entry!
// Collection: $recordId: 1 -> {_id: 34, a: 34} $recordId: 2 -> {_id: 2 a: 2} $recordId: 3 -> {_id: 3, a: 3} // {a: 1} index: {a: 1} -> $recordId: 1 {a: 2} -> $recordId: 2 {a: 3} -> $recordId: 3 {a: 34} -> $recordId: 1 // new entry
And if you delete the document with {a: 34}, you'll have a dangling index entry:
// Collection: $recordId: 2 -> {_id: 2 a: 2} $recordId: 3 -> {_id: 3, a: 3} // {a: 1} index: {a: 1} -> $recordId: 1 // dangling {a: 2} -> $recordId: 2 {a: 3} -> $recordId: 3
- is related to
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- Backlog
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- related to
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- Open
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- Closed
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