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// Test geo index selection criterion, with and without explicit hints. SERVER-4531
t = db.jstests_geog;
t.drop();
t.save({a:{x:0,y:0},z:1});
query = {a:[0,0],z:1};
function assertCount( count, hint ) {
if ( hint ) {
assert.eq( count, t.find(query).hint(hint).itcount() );
}
else {
assert.eq( count, t.find(query).itcount() );
assert.eq( count, t.count(query) );
}
}
function assertNotTryingGeoIndex() {
plans = t.find(query).explain(true).allPlans;
for( i in plans ) {
assert( !plans[i].cursor.match( /Geo/ ) );
}
}
function assertNonGeoResults() {
assertCount( 0 );
assertNotTryingGeoIndex();
}
function assertNonGeoResultsWithHint() {
assertCount( 0, {a:1} );
assertCount( 0, {$natural:1} );
}
function assertGeoResults() {
assertCount( 1 );
}
function assertGeoResultsWithHint() {
assertCount( 1, {a:'2d',z:1} );
}
assertNonGeoResults();
t.ensureIndex({a:'2d',z:1});
// If geo is the only index option, pick it.
assertGeoResults();
assertGeoResultsWithHint();
t.ensureIndex({a:1});
// If there is a non geo index, don't use the geo index.
assertNonGeoResults();
assertNonGeoResultsWithHint();
assertGeoResultsWithHint();
t.dropIndex({a:1});
assertGeoResults();
assertGeoResultsWithHint();
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