Force mongo to use a specific index

LocalData / localdata-tiles

A tileserver for LocalData

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Force mongo to use a specific index #141

Closed prashtx closed 9 years ago

prashtx commented 9 years ago

For some reason, MongoDB 2.4 does not always choose the right index here. It does use an index, but using an inefficient one leads to a large index scan.

/cc @hampelm