mongodb/jstests/find8.js

// SERVER-1932 Test unindexed matching of a range that is only valid in a multikey context.

t = db.jstests_find8;
t.drop();

t.save( {a:[1,10]} );
assert.eq( 1, t.count( { a: { $gt:2,$lt:5} } ) );

// Check that we can do a query with 'invalid' range.
assert.eq( 1, t.count( { a: { $gt:5,$lt:2} } ) );

t.save( {a:[-1,12]} );

// Check that we can do a query with 'invalid' range and sort.
assert.eq( 1, t.find( { a: { $gt:5,$lt:2} } ).sort( {a:1} ).toArray()[ 0 ].a[ 0 ] );
assert.eq( 2, t.find( { a: { $gt:5,$lt:2} } ).sort( {$natural:-1} ).itcount() );

// SERVER-2864
if( 0 ) {
t.find( { a: { $gt:5,$lt:2} } ).itcount();
// Check that we can record a plan for an 'invalid' range.
assert( t.find( { a: { $gt:5,$lt:2} } ).explain( true ).oldPlan );
}

t.ensureIndex( {b:1} );
// Check that if we do a table scan of an 'invalid' range in an or clause we don't check subsequent clauses.
assert.eq( "BasicCursor", t.find( { $or:[{ a: { $gt:5,$lt:2} }, {b:1}] } ).explain().cursor );