38 lines
805 B
JavaScript
38 lines
805 B
JavaScript
// Test sorting with skipping and multiple candidate query plans.
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t = db.jstests_sortc;
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t.drop();
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t.save({a: 1});
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t.save({a: 2});
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function checkA(a, sort, skip, query) {
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query = query || {};
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assert.eq(a, t.find(query).sort(sort).skip(skip)[0].a);
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}
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function checkSortAndSkip() {
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checkA(1, {a: 1}, 0);
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checkA(2, {a: 1}, 1);
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checkA(1, {a: 1}, 0, {a: {$gt: 0}, b: null});
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checkA(2, {a: 1}, 1, {a: {$gt: 0}, b: null});
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checkA(2, {a: -1}, 0);
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checkA(1, {a: -1}, 1);
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checkA(2, {a: -1}, 0, {a: {$gt: 0}, b: null});
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checkA(1, {a: -1}, 1, {a: {$gt: 0}, b: null});
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checkA(1, {$natural: 1}, 0);
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checkA(2, {$natural: 1}, 1);
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checkA(2, {$natural: -1}, 0);
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checkA(1, {$natural: -1}, 1);
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}
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checkSortAndSkip();
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t.ensureIndex({a: 1});
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checkSortAndSkip();
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