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Type:
Bug
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Resolution: Done
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Priority:
Minor - P4
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None
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Affects Version/s: 2.5.5
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Component/s: Querying
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None
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ALL
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Saw this in repro'ing SERVER-12613. Stripped down version below.
db.col.drop();
db.col.insert({a:"test"});
db.col.ensureIndex({a:1});
var explainObj = db.col.find({ $or: [ { 'a' : "foo" }, { 'a' : "bar" } ] }).explain();
printjson( explainObj )
assert.eq(0, explainObj.nscannedObjectsAllPlans);
assert.eq(0, explainObj.nscannedAllPlans);
db.col.getPlanCache().clear();
explainObj = db.col.find({ $or: [ { 'a' : null }, { 'a' : null } ] }).explain();
printjson( explainObj )
assert.eq(0, explainObj.nscannedObjectsAllPlans);
assert.eq(0, explainObj.nscannedAllPlans);
- is related to
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SERVER-12529 incorrect explain output for covered $or with new query framework
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- Closed
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