Details
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Bug
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Resolution: Fixed
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Major - P3
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None
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Fully Compatible
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ALL
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v4.2, v4.0, v3.6
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Repl 2020-01-27, Repl 2020-02-10
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6
Description
The following error can happen when inserting a document like
{_id: 0, a: [{0: 1}]}
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into a collection with an index on {"a.0": 1}:
> db.foo.ensureIndex({"a.0": 1})
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{
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"createdCollectionAutomatically" : false,
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"numIndexesBefore" : 2,
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"numIndexesAfter" : 3,
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"ok" : 1
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}
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> db.foo.insert({a: [{0: 1}]})
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WriteResult({
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"nInserted" : 0,
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"writeError" : {
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"code" : 16746,
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"errmsg" : "Ambiguous field name found in array (do not use numeric field names in embedded elements in an array), field: '0' for array: { 0: { 0: 1.0 } }"
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}
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})
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When finishing initial sync and applying oplog entries that happened during the sync, this error should be ignored. Like a unique index constraint violation, this should eventually be resolved during oplog application, either by a another operation deleting the document, or by another oplog entry dropping the index.
Attachments
Issue Links
- is depended on by
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SERVER-33946 Decrease number of initial sync attempts in tests to 1
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- Blocked
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- is related to
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SERVER-45827 Expand initial sync fuzzer grammar to include all CRUD document shapes and index DDL ops
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- Backlog
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- Backlog
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