Query planning logic depends substantially on whether or not the set of available indices is multikey, and on which indexed paths are multikey. If this information changes due to a concurrent update or insert creating a new array path, in progress queries may be using a plan that is now invalid. One way to fix this would be to kill all in-progress queries for a particular collection when making a change to that collection's multikeyness metadata.
- is duplicated by
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SERVER-4975 covered index projection may be improperly applied after index becomes multikey during yield
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- Closed
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- Closed
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- related to
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SERVER-41058 Add concurrency workload targeted at multikey index writes
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- Open
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