82 lines
3.4 KiB
JavaScript
82 lines
3.4 KiB
JavaScript
// Compound index covered query tests
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// Include helpers for analyzing explain output.
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load("jstests/libs/analyze_plan.js");
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var coll = db.getCollection("covered_compound_1");
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coll.drop();
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for (i = 0; i < 100; i++) {
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coll.insert({a: i, b: "strvar_" + (i % 13), c: NumberInt(i % 10)});
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}
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coll.ensureIndex({a: 1, b: -1, c: 1});
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// Test equality - all indexed fields queried and projected
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var plan = coll.find({a: 10, b: "strvar_10", c: 0}, {a: 1, b: 1, c: 1, _id: 0})
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.hint({a: 1, b: -1, c: 1})
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.explain("executionStats");
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assert(isIndexOnly(plan.queryPlanner.winningPlan),
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"compound.1.1 - indexOnly should be true on covered query");
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assert.eq(0,
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plan.executionStats.totalDocsExamined,
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"compound.1.1 - nscannedObjects should be 0 for covered query");
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// Test query on subset of fields queried and project all
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var plan = coll.find({a: 26, b: "strvar_0"}, {a: 1, b: 1, c: 1, _id: 0})
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.hint({a: 1, b: -1, c: 1})
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.explain("executionStats");
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assert(isIndexOnly(plan.queryPlanner.winningPlan),
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"compound.1.2 - indexOnly should be true on covered query");
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assert.eq(0,
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plan.executionStats.totalDocsExamined,
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"compound.1.2 - nscannedObjects should be 0 for covered query");
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// Test query on all fields queried and project subset
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var plan = coll.find({a: 38, b: "strvar_12", c: 8}, {b: 1, c: 1, _id: 0})
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.hint({a: 1, b: -1, c: 1})
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.explain("executionStats");
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assert(isIndexOnly(plan.queryPlanner.winningPlan),
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"compound.1.3 - indexOnly should be true on covered query");
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assert.eq(0,
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plan.executionStats.totalDocsExamined,
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"compound.1.3 - nscannedObjects should be 0 for covered query");
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// Test no query
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var plan = coll.find({}, {b: 1, c: 1, _id: 0}).hint({a: 1, b: -1, c: 1}).explain("executionStats");
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assert(isIndexOnly(plan.queryPlanner.winningPlan),
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"compound.1.4 - indexOnly should be true on covered query");
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assert.eq(0,
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plan.executionStats.totalDocsExamined,
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"compound.1.4 - nscannedObjects should be 0 for covered query");
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// Test range query
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var plan = coll.find({a: {$gt: 25, $lt: 43}}, {b: 1, c: 1, _id: 0})
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.hint({a: 1, b: -1, c: 1})
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.explain("executionStats");
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assert(isIndexOnly(plan.queryPlanner.winningPlan),
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"compound.1.5 - indexOnly should be true on covered query");
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assert.eq(0,
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plan.executionStats.totalDocsExamined,
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"compound.1.5 - nscannedObjects should be 0 for covered query");
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// Test in query
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var plan = coll.find({a: 38, b: "strvar_12", c: {$in: [5, 8]}}, {b: 1, c: 1, _id: 0})
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.hint({a: 1, b: -1, c: 1})
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.explain("executionStats");
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assert(isIndexOnly(plan.queryPlanner.winningPlan),
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"compound.1.6 - indexOnly should be true on covered query");
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assert.eq(0,
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plan.executionStats.totalDocsExamined,
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"compound.1.6 - nscannedObjects should be 0 for covered query");
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// Test no result
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var plan = coll.find({a: 38, b: "strvar_12", c: 55}, {a: 1, b: 1, c: 1, _id: 0})
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.hint({a: 1, b: -1, c: 1})
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.explain("executionStats");
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assert(isIndexOnly(plan.queryPlanner.winningPlan),
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"compound.1.7 - indexOnly should be true on covered query");
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assert.eq(0,
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plan.executionStats.totalDocsExamined,
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"compound.1.7 - nscannedObjects should be 0 for covered query");
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print('all tests passed');
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