27 lines
803 B
JavaScript
27 lines
803 B
JavaScript
// test preservePadding
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var mydb = db.getSiblingDB('compactPreservePadding');
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var collName = "compactPreservePadding";
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var t = mydb.getCollection(collName);
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t.drop();
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// use larger keyname to avoid hitting an edge case with extents
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for (i = 0; i < 10000; i++) {
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t.insert({useLargerKeyName:i});
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}
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// remove half the entries
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t.remove({useLargerKeyName:{$mod:[2,0]}})
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printjson(t.stats());
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originalSize = t.stats().size;
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originalStorage = t.stats().storageSize;
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// compact!
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mydb.runCommand({compact: collName, preservePadding: true});
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printjson(t.stats());
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// object sizes ('size') should be the same (unless we hit an edge case involving extents, which
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// this test doesn't) and storage size should shrink
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assert(originalSize == t.stats().size);
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assert(originalStorage > t.stats().storageSize);
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