mirror of https://github.com/mongodb/mongo
43 lines
1.2 KiB
JavaScript
43 lines
1.2 KiB
JavaScript
// $or clause deduping with result set sizes > 101 (smaller result sets are now also deduped by the
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// query optimizer cursor).
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t = db.jstests_orp;
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t.drop();
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t.ensureIndex({a: 1});
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t.ensureIndex({b: 1});
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t.ensureIndex({c: 1});
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for (i = 0; i < 200; ++i) {
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t.save({a: 1, b: 1});
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}
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// Deduping results from the previous clause.
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assert.eq(200, t.count({$or: [{a: 1}, {b: 1}]}));
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// Deduping results from a prior clause.
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assert.eq(200, t.count({$or: [{a: 1}, {c: 1}, {b: 1}]}));
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t.save({c: 1});
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assert.eq(201, t.count({$or: [{a: 1}, {c: 1}, {b: 1}]}));
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// Deduping results that would normally be index only matches on overlapping and double scanned $or
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// field regions.
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t.drop();
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t.ensureIndex({a: 1, b: 1});
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for (i = 0; i < 16; ++i) {
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for (j = 0; j < 16; ++j) {
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t.save({a: i, b: j});
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}
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}
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assert.eq(16 * 16, t.count({$or: [{a: {$gte: 0}, b: {$gte: 0}}, {a: {$lte: 16}, b: {$lte: 16}}]}));
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// Deduping results from a clause that completed before the multi cursor takeover.
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t.drop();
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t.ensureIndex({a: 1});
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t.ensureIndex({b: 1});
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t.save({a: 1, b: 200});
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for (i = 0; i < 200; ++i) {
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t.save({b: i});
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}
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assert.eq(201, t.count({$or: [{a: 1}, {b: {$gte: 0}}]}));
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