78 lines
3.3 KiB
JavaScript
78 lines
3.3 KiB
JavaScript
// Simple covered index query test with a unique sparse index
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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_simple_3");
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coll.drop();
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for (i=0;i<10;i++) {
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coll.insert({foo:i});
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}
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for (i=0;i<5;i++) {
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coll.insert({bar:i});
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}
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coll.insert({foo:"string"});
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coll.insert({foo:{bar:1}});
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coll.insert({foo:null});
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coll.ensureIndex({foo:1}, {sparse:true, unique:true});
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// Test equality with int value
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var plan = coll.find({foo:1}, {foo:1, _id:0}).hint({foo:1}).explain("executionStats");
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assert(isIndexOnly(plan.queryPlanner.winningPlan),
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"simple.3.1 - indexOnly should be true on covered query")
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assert.eq(0, plan.executionStats.totalDocsExamined,
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"simple.3.1 - docs examined should be 0 for covered query")
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// Test equality with string value
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var plan = coll.find({foo:"string"}, {foo:1, _id:0}).hint({foo:1}).explain("executionStats");
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assert(isIndexOnly(plan.queryPlanner.winningPlan),
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"simple.3.2 - indexOnly should be true on covered query")
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assert.eq(0, plan.executionStats.totalDocsExamined,
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"simple.3.2 - docs examined should be 0 for covered query")
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// Test equality with int value on a dotted field
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var plan = coll.find({foo:{bar:1}}, {foo:1, _id:0}).hint({foo:1}).explain("executionStats");
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assert(isIndexOnly(plan.queryPlanner.winningPlan),
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"simple.3.3 - indexOnly should be true on covered query")
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assert.eq(0, plan.executionStats.totalDocsExamined,
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"simple.3.3 - docs examined should be 0 for covered query")
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// Test no query
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var plan = coll.find({}, {foo:1, _id:0}).hint({foo:1}).explain("executionStats");
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assert(isIndexOnly(plan.queryPlanner.winningPlan),
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"simple.3.4 - indexOnly should be true on covered query")
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assert.eq(0, plan.executionStats.totalDocsExamined,
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"simple.3.4 - docs examined should be 0 for covered query")
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// Test range query
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var plan = coll.find({foo:{$gt:2,$lt:6}}, {foo:1, _id:0}).hint({foo:1}).explain("executionStats");
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assert(isIndexOnly(plan.queryPlanner.winningPlan),
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"simple.3.5 - indexOnly should be true on covered query")
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assert.eq(0, plan.executionStats.totalDocsExamined,
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"simple.3.5 - docs examined should be 0 for covered query")
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// Test in query
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var plan = coll.find({foo:{$in:[5,8]}}, {foo:1, _id:0}).hint({foo:1}).explain("executionStats");
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assert(isIndexOnly(plan.queryPlanner.winningPlan),
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"simple.3.6 - indexOnly should be true on covered query")
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assert.eq(0, plan.executionStats.totalDocsExamined,
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"simple.3.6 - docs examined should be 0 for covered query")
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// Test $exists true
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var plan = coll.find({foo:{$exists:true}}, {foo:1, _id:0}).hint({foo:1}).explain("executionStats");
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assert(isIndexOnly(plan.queryPlanner.winningPlan),
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"simple.3.7 - indexOnly should be true on covered query")
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assert.eq(0, plan.executionStats.totalDocsExamined,
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"simple.3.7 - docs examined should be 0 for covered query")
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// Check that $nin can be covered.
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coll.dropIndexes();
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coll.ensureIndex({bar: 1});
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var plan = coll.find({bar:{$nin:[5,8]}}, {bar:1, _id:0}).hint({bar:1}).explain("executionStats");
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assert(isIndexOnly(plan.queryPlanner.winningPlan),
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"simple.3.8 - indexOnly should be true on covered query")
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assert.eq(0, plan.executionStats.totalDocsExamined,
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"simple.3.8 - docs examined should be 0 for covered query")
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print ('all tests pass')
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