mirror of https://github.com/mongodb/mongo
51 lines
1.5 KiB
JavaScript
51 lines
1.5 KiB
JavaScript
// @tags: [requires_fastcount]
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t = db.jstests_exists;
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t.drop();
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t.save({});
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t.save({a: 1});
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t.save({a: {b: 1}});
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t.save({a: {b: {c: 1}}});
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t.save({a: {b: {c: {d: null}}}});
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function dotest(n) {
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assert.eq(5, t.count(), n);
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assert.eq(1, t.count({a: null}), n);
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assert.eq(2, t.count({'a.b': null}), n);
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assert.eq(3, t.count({'a.b.c': null}), n);
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assert.eq(5, t.count({'a.b.c.d': null}), n);
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assert.eq(5, t.count(), n);
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assert.eq(4, t.count({a: {$ne: null}}), n);
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assert.eq(3, t.count({'a.b': {$ne: null}}), n);
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assert.eq(2, t.count({'a.b.c': {$ne: null}}), n);
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assert.eq(0, t.count({'a.b.c.d': {$ne: null}}), n);
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assert.eq(4, t.count({a: {$exists: true}}), n);
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assert.eq(3, t.count({'a.b': {$exists: true}}), n);
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assert.eq(2, t.count({'a.b.c': {$exists: true}}), n);
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assert.eq(1, t.count({'a.b.c.d': {$exists: true}}), n);
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assert.eq(1, t.count({a: {$exists: false}}), n);
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assert.eq(2, t.count({'a.b': {$exists: false}}), n);
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assert.eq(3, t.count({'a.b.c': {$exists: false}}), n);
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assert.eq(4, t.count({'a.b.c.d': {$exists: false}}), n);
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}
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dotest("before index");
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t.ensureIndex({"a": 1});
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t.ensureIndex({"a.b": 1});
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t.ensureIndex({"a.b.c": 1});
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t.ensureIndex({"a.b.c.d": 1});
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dotest("after index");
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assert.eq(1, t.find({a: {$exists: false}}).hint({a: 1}).itcount());
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t.drop();
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t.save({r: [{s: 1}]});
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assert(t.findOne({'r.s': {$exists: true}}));
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assert(!t.findOne({'r.s': {$exists: false}}));
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assert(!t.findOne({'r.t': {$exists: true}}));
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assert(t.findOne({'r.t': {$exists: false}}));
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