103 lines
4.0 KiB
JavaScript
103 lines
4.0 KiB
JavaScript
// This test makes assertions about how many keys are examined during query execution, which can
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// change depending on whether/how many documents are filtered out by the SHARDING_FILTER stage.
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// @tags: [assumes_unsharded_collection]
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t = db.index_check6;
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t.drop();
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function keysExamined(query, hint) {
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var explain = t.find(query).hint(hint).explain("executionStats");
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return explain.executionStats.totalKeysExamined;
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}
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t.ensureIndex({age: 1, rating: 1});
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for (var age = 10; age < 50; age++) {
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for (var rating = 0; rating < 10; rating++) {
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t.save({age: age, rating: rating});
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}
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}
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assert.eq(10, keysExamined({age: 30}, {}), "A");
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assert.eq(20, keysExamined({age: {$gte: 29, $lte: 30}}, {}), "B");
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assert.eq(19,
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keysExamined({age: {$gte: 25, $lte: 30}, rating: {$in: [0, 9]}}, {age: 1, rating: 1}),
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"C1");
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assert.eq(24,
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keysExamined({age: {$gte: 25, $lte: 30}, rating: {$in: [0, 8]}}, {age: 1, rating: 1}),
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"C2");
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assert.eq(29,
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keysExamined({age: {$gte: 25, $lte: 30}, rating: {$in: [1, 8]}}, {age: 1, rating: 1}),
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"C3");
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assert.eq(5,
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keysExamined({age: {$gte: 29, $lte: 30}, rating: 5}, {age: 1, rating: 1}),
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"C"); // SERVER-371
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assert.eq(
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7,
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keysExamined({age: {$gte: 29, $lte: 30}, rating: {$gte: 4, $lte: 5}}, {age: 1, rating: 1}),
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"D"); // SERVER-371
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assert.eq.automsg("2",
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"t.find( { age:30, rating:{ $gte:4, $lte:5} } )" + ".explain('executionStats')" +
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".executionStats.totalKeysExamined");
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t.drop();
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for (var a = 1; a < 10; a++) {
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for (var b = 0; b < 10; b++) {
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for (var c = 0; c < 10; c++) {
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t.save({a: a, b: b, c: c});
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}
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}
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}
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function doQuery(count, query, sort, index) {
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var explain = t.find(query).hint(index).sort(sort).explain("executionStats");
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var nscanned = explain.executionStats.totalKeysExamined;
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assert(Math.abs(count - nscanned) <= 2);
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}
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function doTest(sort, index) {
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doQuery(1, {a: 5, b: 5, c: 5}, sort, index);
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doQuery(2, {a: 5, b: 5, c: {$gte: 5, $lte: 6}}, sort, index);
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doQuery(1, {a: 5, b: 5, c: {$gte: 5.5, $lte: 6}}, sort, index);
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doQuery(1, {a: 5, b: 5, c: {$gte: 5, $lte: 5.5}}, sort, index);
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doQuery(3, {a: 5, b: 5, c: {$gte: 5, $lte: 7}}, sort, index);
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doQuery(4, {a: 5, b: {$gte: 5, $lte: 6}, c: 5}, sort, index);
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if (sort.b > 0) {
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doQuery(3, {a: 5, b: {$gte: 5.5, $lte: 6}, c: 5}, sort, index);
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doQuery(3, {a: 5, b: {$gte: 5, $lte: 5.5}, c: 5}, sort, index);
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} else {
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doQuery(3, {a: 5, b: {$gte: 5.5, $lte: 6}, c: 5}, sort, index);
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doQuery(3, {a: 5, b: {$gte: 5, $lte: 5.5}, c: 5}, sort, index);
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}
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doQuery(8, {a: 5, b: {$gte: 5, $lte: 7}, c: 5}, sort, index);
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doQuery(5, {a: {$gte: 5, $lte: 6}, b: 5, c: 5}, sort, index);
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if (sort.a > 0) {
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doQuery(3, {a: {$gte: 5.5, $lte: 6}, b: 5, c: 5}, sort, index);
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doQuery(3, {a: {$gte: 5, $lte: 5.5}, b: 5, c: 5}, sort, index);
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doQuery(3, {a: {$gte: 5.5, $lte: 6}, b: 5, c: {$gte: 5, $lte: 6}}, sort, index);
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} else {
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doQuery(3, {a: {$gte: 5.5, $lte: 6}, b: 5, c: 5}, sort, index);
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doQuery(3, {a: {$gte: 5, $lte: 5.5}, b: 5, c: 5}, sort, index);
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doQuery(4, {a: {$gte: 5.5, $lte: 6}, b: 5, c: {$gte: 5, $lte: 6}}, sort, index);
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}
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doQuery(8, {a: {$gte: 5, $lte: 7}, b: 5, c: 5}, sort, index);
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doQuery(7, {a: {$gte: 5, $lte: 6}, b: 5, c: {$gte: 5, $lte: 6}}, sort, index);
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doQuery(7, {a: 5, b: {$gte: 5, $lte: 6}, c: {$gte: 5, $lte: 6}}, sort, index);
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doQuery(11, {a: {$gte: 5, $lte: 6}, b: {$gte: 5, $lte: 6}, c: 5}, sort, index);
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doQuery(15, {a: {$gte: 5, $lte: 6}, b: {$gte: 5, $lte: 6}, c: {$gte: 5, $lte: 6}}, sort, index);
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}
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for (var a = -1; a <= 1; a += 2) {
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for (var b = -1; b <= 1; b += 2) {
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for (var c = -1; c <= 1; c += 2) {
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t.dropIndexes();
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var spec = {a: a, b: b, c: c};
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t.ensureIndex(spec);
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doTest(spec, spec);
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doTest({a: -a, b: -b, c: -c}, spec);
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}
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}
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}
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