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