1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
|
// Test covered index projection with $or clause, specifically in getMore
// SERVER-4980
t = db.jstests_coveredIndex4;
t.drop();
t.ensureIndex( { a:1 } );
t.ensureIndex( { b:1 } );
orClause = [];
for( i = 0; i < 200; ++i ) {
if ( i % 2 == 0 ) {
t.save( { a:i } );
orClause.push( { a:i } );
}
else {
t.save( { b:i } );
orClause.push( { b:i } );
}
}
c = t.find( { $or:orClause }, { _id:0, a:1 } );
// No odd values of a were saved, so we should not see any in the results.
while( c.hasNext() ) {
o = c.next();
if ( o.a ) {
assert.eq( 0, o.a % 2, 'unexpected result: ' + tojson( o ) );
}
}
c = t.find( { $or:orClause }, { _id:0, b:1 } );
// No even values of b were saved, so we should not see any in the results.
while( c.hasNext() ) {
o = c.next();
if ( o.b ) {
assert.eq( 1, o.b % 2, 'unexpected result: ' + tojson( o ) );
}
}
|
