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Type:
Bug
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Resolution: Done
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Priority:
Major - P3
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None
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Affects Version/s: 2.0.4
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Component/s: Index Maintenance
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None
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Environment:Capped Collection / 'rf' is sparse-indexed
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Linux
db.log.find(
{ rf : 'o-5556457634'}).sort(
{ '$natural' : -1 }).explain();
{
"cursor" : "ReverseCappedCursor",
"nscanned" : 1654468,
"nscannedObjects" : 1654468,
"n" : 4,
"millis" : 2932,
"nYields" : 5,
"nChunkSkips" : 0,
"isMultiKey" : false,
"indexOnly" : false,
"indexBounds" : {}
}
Without the 'natural' sort:
db.log.find(
{ rf : 'o-5556457634'}).explain();
{
"cursor" : "BtreeCursor rf_1",
"nscanned" : 4,
"nscannedObjects" : 4,
"n" : 4,
"millis" : 0,
"nYields" : 0,
"nChunkSkips" : 0,
"isMultiKey" : false,
"indexOnly" : false,
"indexBounds" : {
"rf" : [
[
"o-5556457634",
"o-5556457634"
]
]
}
- related to
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SERVER-8607 add support for natural order sorting in memory
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- Closed
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