20 lines
482 B
JavaScript
20 lines
482 B
JavaScript
// @tags: [requires_non_retryable_writes]
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// SERVER-2831 Demonstration of sparse index matching semantics in a multi index $or query.
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t = db.jstests_orh;
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t.drop();
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t.ensureIndex({a: 1}, {sparse: true});
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t.ensureIndex({b: 1, a: 1});
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t.remove({});
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t.save({b: 2});
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assert.eq(1, t.count({a: null}));
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assert.eq(1, t.count({b: 2, a: null}));
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assert.eq(1, t.count({$or: [{b: 2, a: null}, {a: null}]}));
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// Is this desired?
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assert.eq(1, t.count({$or: [{a: null}, {b: 2, a: null}]}));
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