Major - P3 This ticket reshapes the ShardCollectionType to the following scheme:
{
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"_id" : "foo.bar", // will become UUID when available
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"ns" : "foo.bar",
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"epoch" : ObjectId("58b6fd76132358839e409e47"), // will remove when UUID becomes available
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"key" : {
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"_id" : 1
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},
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"defaultCollation" : {
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"locale" : "fr_CA"
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},
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"unique" : false,
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"refreshing" : 0
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"sequenceNumber" : 5
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}
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This ticket also covers rearranging shard_metadata_util.h/cpp to use the new ShardCollectionType and provide the utilities needed by the ShardServerCatalogCacheLoader.