forked from mongodb/mongo
/
queryoptimizertests.cpp
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queryoptimizertests.cpp
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// queryoptimizertests.cpp : query optimizer unit tests
//
/**
* Copyright (C) 2009 10gen Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "pch.h"
#include "../db/queryoptimizer.h"
#include "../db/querypattern.h"
#include "../db/instance.h"
#include "../db/query.h"
#include "dbtests.h"
namespace mongo {
extern BSONObj id_obj;
void runQuery(Message& m, QueryMessage& q, Message &response ) {
CurOp op( &(cc()) );
op.ensureStarted();
runQuery( m , q , op, response );
}
void runQuery(Message& m, QueryMessage& q ) {
Message response;
runQuery( m, q, response );
}
void __forceLinkGeoPlugin();
shared_ptr<Cursor> newQueryOptimizerCursor( const char *ns, const BSONObj &query, const BSONObj &order = BSONObj() );
} // namespace mongo
namespace QueryOptimizerTests {
void dropCollection( const char *ns ) {
string errmsg;
BSONObjBuilder result;
dropCollection( ns, errmsg, result );
}
namespace QueryPlanTests {
using boost::shared_ptr;
class Base {
public:
Base() : _ctx( ns() ) , indexNum_( 0 ) {
string err;
userCreateNS( ns(), BSONObj(), err, false );
}
~Base() {
if ( !nsd() )
return;
dropCollection( ns() );
}
protected:
static const char *ns() { return "unittests.QueryPlanTests"; }
static NamespaceDetails *nsd() { return nsdetails( ns() ); }
IndexDetails *index( const BSONObj &key ) {
stringstream ss;
ss << indexNum_++;
string name = ss.str();
client_.resetIndexCache();
client_.ensureIndex( ns(), key, false, name.c_str() );
NamespaceDetails *d = nsd();
for( int i = 0; i < d->nIndexes; ++i ) {
if ( d->idx(i).keyPattern() == key /*indexName() == name*/ || ( d->idx(i).isIdIndex() && IndexDetails::isIdIndexPattern( key ) ) )
return &d->idx(i);
}
assert( false );
return 0;
}
int indexno( const BSONObj &key ) {
return nsd()->idxNo( *index(key) );
}
BSONObj startKey( const QueryPlan &p ) const {
return p.frv()->startKey();
}
BSONObj endKey( const QueryPlan &p ) const {
return p.frv()->endKey();
}
private:
dblock lk_;
Client::Context _ctx;
int indexNum_;
static DBDirectClient client_;
};
DBDirectClient Base::client_;
// There's a limit of 10 indexes total, make sure not to exceed this in a given test.
#define INDEXNO(x) nsd()->idxNo( *this->index( BSON(x) ) )
#define INDEX(x) this->index( BSON(x) )
auto_ptr< FieldRangeSetPair > FieldRangeSetPair_GLOBAL;
#define FRSP(x) ( FieldRangeSetPair_GLOBAL.reset( new FieldRangeSetPair( ns(), x ) ), *FieldRangeSetPair_GLOBAL )
auto_ptr< FieldRangeSetPair > FieldRangeSetPair_GLOBAL2;
#define FRSP2(x) ( FieldRangeSetPair_GLOBAL2.reset( new FieldRangeSetPair( ns(), x ) ), *FieldRangeSetPair_GLOBAL2 )
class NoIndex : public Base {
public:
void run() {
QueryPlan p( nsd(), -1, FRSP( BSONObj() ), FRSP2( BSONObj() ), BSONObj(), BSONObj() );
ASSERT( !p.optimal() );
ASSERT( !p.scanAndOrderRequired() );
ASSERT( !p.exactKeyMatch() );
}
};
class SimpleOrder : public Base {
public:
void run() {
BSONObjBuilder b;
b.appendMinKey( "" );
BSONObj start = b.obj();
BSONObjBuilder b2;
b2.appendMaxKey( "" );
BSONObj end = b2.obj();
QueryPlan p( nsd(), INDEXNO( "a" << 1 ), FRSP( BSONObj() ), FRSP2( BSONObj() ), BSONObj(), BSON( "a" << 1 ) );
ASSERT( !p.scanAndOrderRequired() );
ASSERT( !startKey( p ).woCompare( start ) );
ASSERT( !endKey( p ).woCompare( end ) );
QueryPlan p2( nsd(), INDEXNO( "a" << 1 << "b" << 1 ), FRSP( BSONObj() ), FRSP2( BSONObj() ), BSONObj(), BSON( "a" << 1 << "b" << 1 ) );
ASSERT( !p2.scanAndOrderRequired() );
QueryPlan p3( nsd(), INDEXNO( "a" << 1 ), FRSP( BSONObj() ), FRSP2( BSONObj() ), BSONObj(), BSON( "b" << 1 ) );
ASSERT( p3.scanAndOrderRequired() );
ASSERT( !startKey( p3 ).woCompare( start ) );
ASSERT( !endKey( p3 ).woCompare( end ) );
}
};
class MoreIndexThanNeeded : public Base {
public:
void run() {
QueryPlan p( nsd(), INDEXNO( "a" << 1 << "b" << 1 ), FRSP( BSONObj() ), FRSP2( BSONObj() ), BSONObj(), BSON( "a" << 1 ) );
ASSERT( !p.scanAndOrderRequired() );
}
};
class IndexSigns : public Base {
public:
void run() {
QueryPlan p( nsd(), INDEXNO( "a" << 1 << "b" << -1 ) , FRSP( BSONObj() ), FRSP2( BSONObj() ), BSONObj(), BSON( "a" << 1 << "b" << -1 ) );
ASSERT( !p.scanAndOrderRequired() );
ASSERT_EQUALS( 1, p.direction() );
QueryPlan p2( nsd(), INDEXNO( "a" << 1 << "b" << 1 ), FRSP( BSONObj() ), FRSP2( BSONObj() ), BSONObj(), BSON( "a" << 1 << "b" << -1 ) );
ASSERT( p2.scanAndOrderRequired() );
ASSERT_EQUALS( 0, p2.direction() );
QueryPlan p3( nsd(), indexno( id_obj ), FRSP( BSONObj() ), FRSP2( BSONObj() ), BSONObj(), BSON( "_id" << 1 ) );
ASSERT( !p3.scanAndOrderRequired() );
ASSERT_EQUALS( 1, p3.direction() );
}
};
class IndexReverse : public Base {
public:
void run() {
BSONObjBuilder b;
b.appendMinKey( "" );
b.appendMaxKey( "" );
BSONObj start = b.obj();
BSONObjBuilder b2;
b2.appendMaxKey( "" );
b2.appendMinKey( "" );
BSONObj end = b2.obj();
QueryPlan p( nsd(), INDEXNO( "a" << -1 << "b" << 1 ),FRSP( BSONObj() ), FRSP2( BSONObj() ), BSONObj(), BSON( "a" << 1 << "b" << -1 ) );
ASSERT( !p.scanAndOrderRequired() );
ASSERT_EQUALS( -1, p.direction() );
ASSERT( !startKey( p ).woCompare( start ) );
ASSERT( !endKey( p ).woCompare( end ) );
QueryPlan p2( nsd(), INDEXNO( "a" << 1 << "b" << 1 ), FRSP( BSONObj() ), FRSP2( BSONObj() ), BSONObj(), BSON( "a" << -1 << "b" << -1 ) );
ASSERT( !p2.scanAndOrderRequired() );
ASSERT_EQUALS( -1, p2.direction() );
QueryPlan p3( nsd(), INDEXNO( "a" << 1 << "b" << -1 ), FRSP( BSONObj() ), FRSP2( BSONObj() ), BSONObj(), BSON( "a" << -1 << "b" << -1 ) );
ASSERT( p3.scanAndOrderRequired() );
ASSERT_EQUALS( 0, p3.direction() );
}
};
class NoOrder : public Base {
public:
void run() {
BSONObjBuilder b;
b.append( "", 3 );
b.appendMinKey( "" );
BSONObj start = b.obj();
BSONObjBuilder b2;
b2.append( "", 3 );
b2.appendMaxKey( "" );
BSONObj end = b2.obj();
QueryPlan p( nsd(), INDEXNO( "a" << -1 << "b" << 1 ), FRSP( BSON( "a" << 3 ) ), FRSP2( BSON( "a" << 3 ) ), BSON( "a" << 3 ), BSONObj() );
ASSERT( !p.scanAndOrderRequired() );
ASSERT( !startKey( p ).woCompare( start ) );
ASSERT( !endKey( p ).woCompare( end ) );
QueryPlan p2( nsd(), INDEXNO( "a" << -1 << "b" << 1 ), FRSP( BSON( "a" << 3 ) ), FRSP2( BSON( "a" << 3 ) ), BSON( "a" << 3 ), BSONObj() );
ASSERT( !p2.scanAndOrderRequired() );
ASSERT( !startKey( p ).woCompare( start ) );
ASSERT( !endKey( p ).woCompare( end ) );
}
};
class EqualWithOrder : public Base {
public:
void run() {
QueryPlan p( nsd(), INDEXNO( "a" << 1 << "b" << 1 ), FRSP( BSON( "a" << 4 ) ), FRSP2( BSON( "a" << 4 ) ), BSON( "a" << 4 ), BSON( "b" << 1 ) );
ASSERT( !p.scanAndOrderRequired() );
QueryPlan p2( nsd(), INDEXNO( "a" << 1 << "b" << 1 << "c" << 1 ), FRSP( BSON( "b" << 4 ) ), FRSP2( BSON( "b" << 4 ) ), BSON( "b" << 4 ), BSON( "a" << 1 << "c" << 1 ) );
ASSERT( !p2.scanAndOrderRequired() );
QueryPlan p3( nsd(), INDEXNO( "a" << 1 << "b" << 1 ), FRSP( BSON( "b" << 4 ) ), FRSP2( BSON( "b" << 4 ) ), BSON( "b" << 4 ), BSON( "a" << 1 << "c" << 1 ) );
ASSERT( p3.scanAndOrderRequired() );
}
};
class Optimal : public Base {
public:
void run() {
QueryPlan p( nsd(), INDEXNO( "a" << 1 ), FRSP( BSONObj() ), FRSP2( BSONObj() ), BSONObj(), BSON( "a" << 1 ) );
ASSERT( p.optimal() );
QueryPlan p2( nsd(), INDEXNO( "a" << 1 << "b" << 1 ), FRSP( BSONObj() ), FRSP2( BSONObj() ), BSONObj(), BSON( "a" << 1 ) );
ASSERT( p2.optimal() );
QueryPlan p3( nsd(), INDEXNO( "a" << 1 << "b" << 1 ), FRSP( BSON( "a" << 1 ) ), FRSP2( BSON( "a" << 1 ) ), BSON( "a" << 1 ), BSON( "a" << 1 ) );
ASSERT( p3.optimal() );
QueryPlan p4( nsd(), INDEXNO( "a" << 1 << "b" << 1 ), FRSP( BSON( "b" << 1 ) ), FRSP2( BSON( "b" << 1 ) ), BSON( "b" << 1 ), BSON( "a" << 1 ) );
ASSERT( !p4.optimal() );
QueryPlan p5( nsd(), INDEXNO( "a" << 1 << "b" << 1 ), FRSP( BSON( "a" << 1 ) ), FRSP2( BSON( "a" << 1 ) ), BSON( "a" << 1 ), BSON( "b" << 1 ) );
ASSERT( p5.optimal() );
QueryPlan p6( nsd(), INDEXNO( "a" << 1 << "b" << 1 ), FRSP( BSON( "b" << 1 ) ), FRSP2( BSON( "b" << 1 ) ), BSON( "b" << 1 ), BSON( "b" << 1 ) );
ASSERT( !p6.optimal() );
QueryPlan p7( nsd(), INDEXNO( "a" << 1 << "b" << 1 ), FRSP( BSON( "a" << 1 << "b" << 1 ) ), FRSP2( BSON( "a" << 1 << "b" << 1 ) ), BSON( "a" << 1 << "b" << 1 ), BSON( "a" << 1 ) );
ASSERT( p7.optimal() );
QueryPlan p8( nsd(), INDEXNO( "a" << 1 << "b" << 1 ), FRSP( BSON( "a" << 1 << "b" << LT << 1 ) ), FRSP2( BSON( "a" << 1 << "b" << LT << 1 ) ), BSON( "a" << 1 << "b" << LT << 1 ), BSON( "a" << 1 ) );
ASSERT( p8.optimal() );
QueryPlan p9( nsd(), INDEXNO( "a" << 1 << "b" << 1 << "c" << 1 ), FRSP( BSON( "a" << 1 << "b" << LT << 1 ) ), FRSP2( BSON( "a" << 1 << "b" << LT << 1 ) ), BSON( "a" << 1 << "b" << LT << 1 ), BSON( "a" << 1 ) );
ASSERT( p9.optimal() );
}
};
class MoreOptimal : public Base {
public:
void run() {
QueryPlan p10( nsd(), INDEXNO( "a" << 1 << "b" << 1 << "c" << 1 ), FRSP( BSON( "a" << 1 ) ), FRSP2( BSON( "a" << 1 ) ), BSON( "a" << 1 ), BSONObj() );
ASSERT( p10.optimal() );
QueryPlan p11( nsd(), INDEXNO( "a" << 1 << "b" << 1 << "c" << 1 ), FRSP( BSON( "a" << 1 << "b" << LT << 1 ) ), FRSP2( BSON( "a" << 1 << "b" << LT << 1 ) ), BSON( "a" << 1 << "b" << LT << 1 ), BSONObj() );
ASSERT( p11.optimal() );
QueryPlan p12( nsd(), INDEXNO( "a" << 1 << "b" << 1 << "c" << 1 ), FRSP( BSON( "a" << LT << 1 ) ), FRSP2( BSON( "a" << LT << 1 ) ), BSON( "a" << LT << 1 ), BSONObj() );
ASSERT( p12.optimal() );
QueryPlan p13( nsd(), INDEXNO( "a" << 1 << "b" << 1 << "c" << 1 ), FRSP( BSON( "a" << LT << 1 ) ), FRSP2( BSON( "a" << LT << 1 ) ), BSON( "a" << LT << 1 ), BSON( "a" << 1 ) );
ASSERT( p13.optimal() );
}
};
class KeyMatch : public Base {
public:
void run() {
QueryPlan p( nsd(), INDEXNO( "a" << 1 ), FRSP( BSONObj() ), FRSP2( BSONObj() ), BSONObj(), BSON( "a" << 1 ) );
ASSERT( !p.exactKeyMatch() );
QueryPlan p2( nsd(), INDEXNO( "b" << 1 << "a" << 1 ), FRSP( BSONObj() ), FRSP2( BSONObj() ), BSONObj(), BSON( "a" << 1 ) );
ASSERT( !p2.exactKeyMatch() );
QueryPlan p3( nsd(), INDEXNO( "b" << 1 << "a" << 1 ), FRSP( BSON( "b" << "z" ) ), FRSP2( BSON( "b" << "z" ) ), BSON( "b" << "z" ), BSON( "a" << 1 ) );
ASSERT( !p3.exactKeyMatch() );
QueryPlan p4( nsd(), INDEXNO( "b" << 1 << "a" << 1 << "c" << 1 ), FRSP( BSON( "c" << "y" << "b" << "z" ) ), FRSP2( BSON( "c" << "y" << "b" << "z" ) ), BSON( "c" << "y" << "b" << "z" ), BSON( "a" << 1 ) );
ASSERT( !p4.exactKeyMatch() );
QueryPlan p5( nsd(), INDEXNO( "b" << 1 << "a" << 1 << "c" << 1 ), FRSP( BSON( "c" << "y" << "b" << "z" ) ), FRSP2( BSON( "c" << "y" << "b" << "z" ) ), BSON( "c" << "y" << "b" << "z" ), BSONObj() );
ASSERT( !p5.exactKeyMatch() );
QueryPlan p6( nsd(), INDEXNO( "b" << 1 << "a" << 1 << "c" << 1 ), FRSP( BSON( "c" << LT << "y" << "b" << GT << "z" ) ), FRSP2( BSON( "c" << LT << "y" << "b" << GT << "z" ) ), BSON( "c" << LT << "y" << "b" << GT << "z" ), BSONObj() );
ASSERT( !p6.exactKeyMatch() );
QueryPlan p7( nsd(), INDEXNO( "b" << 1 ), FRSP( BSONObj() ), FRSP2( BSONObj() ), BSONObj(), BSON( "a" << 1 ) );
ASSERT( !p7.exactKeyMatch() );
QueryPlan p8( nsd(), INDEXNO( "a" << 1 << "b" << 1 ), FRSP( BSON( "b" << "y" << "a" << "z" ) ), FRSP2( BSON( "b" << "y" << "a" << "z" ) ), BSON( "b" << "y" << "a" << "z" ), BSONObj() );
ASSERT( p8.exactKeyMatch() );
QueryPlan p9( nsd(), INDEXNO( "a" << 1 ), FRSP( BSON( "a" << "z" ) ), FRSP2( BSON( "a" << "z" ) ), BSON( "a" << "z" ), BSON( "a" << 1 ) );
ASSERT( p9.exactKeyMatch() );
}
};
class MoreKeyMatch : public Base {
public:
void run() {
QueryPlan p( nsd(), INDEXNO( "a" << 1 ), FRSP( BSON( "a" << "r" << "b" << NE << "q" ) ), FRSP2( BSON( "a" << "r" << "b" << NE << "q" ) ), BSON( "a" << "r" << "b" << NE << "q" ), BSON( "a" << 1 ) );
ASSERT( !p.exactKeyMatch() );
}
};
class ExactKeyQueryTypes : public Base {
public:
void run() {
QueryPlan p( nsd(), INDEXNO( "a" << 1 ), FRSP( BSON( "a" << "b" ) ), FRSP2( BSON( "a" << "b" ) ), BSON( "a" << "b" ), BSONObj() );
ASSERT( p.exactKeyMatch() );
QueryPlan p2( nsd(), INDEXNO( "a" << 1 ), FRSP( BSON( "a" << 4 ) ), FRSP2( BSON( "a" << 4 ) ), BSON( "a" << 4 ), BSONObj() );
ASSERT( !p2.exactKeyMatch() );
QueryPlan p3( nsd(), INDEXNO( "a" << 1 ), FRSP( BSON( "a" << BSON( "c" << "d" ) ) ), FRSP2( BSON( "a" << BSON( "c" << "d" ) ) ), BSON( "a" << BSON( "c" << "d" ) ), BSONObj() );
ASSERT( !p3.exactKeyMatch() );
BSONObjBuilder b;
b.appendRegex( "a", "^ddd" );
BSONObj q = b.obj();
QueryPlan p4( nsd(), INDEXNO( "a" << 1 ), FRSP( q ), FRSP2( q ), q, BSONObj() );
ASSERT( !p4.exactKeyMatch() );
QueryPlan p5( nsd(), INDEXNO( "a" << 1 << "b" << 1 ), FRSP( BSON( "a" << "z" << "b" << 4 ) ), FRSP2( BSON( "a" << "z" << "b" << 4 ) ), BSON( "a" << "z" << "b" << 4 ), BSONObj() );
ASSERT( !p5.exactKeyMatch() );
}
};
class Unhelpful : public Base {
public:
void run() {
QueryPlan p( nsd(), INDEXNO( "a" << 1 << "b" << 1 ), FRSP( BSON( "b" << 1 ) ), FRSP2( BSON( "b" << 1 ) ), BSON( "b" << 1 ), BSONObj() );
ASSERT( !p.range( "a" ).nontrivial() );
ASSERT( p.unhelpful() );
QueryPlan p2( nsd(), INDEXNO( "a" << 1 << "b" << 1 ), FRSP( BSON( "b" << 1 << "c" << 1 ) ), FRSP2( BSON( "b" << 1 << "c" << 1 ) ), BSON( "b" << 1 << "c" << 1 ), BSON( "a" << 1 ) );
ASSERT( !p2.scanAndOrderRequired() );
ASSERT( !p2.range( "a" ).nontrivial() );
ASSERT( !p2.unhelpful() );
QueryPlan p3( nsd(), INDEXNO( "b" << 1 ), FRSP( BSON( "b" << 1 << "c" << 1 ) ), FRSP2( BSON( "b" << 1 << "c" << 1 ) ), BSON( "b" << 1 << "c" << 1 ), BSONObj() );
ASSERT( p3.range( "b" ).nontrivial() );
ASSERT( !p3.unhelpful() );
QueryPlan p4( nsd(), INDEXNO( "b" << 1 << "c" << 1 ), FRSP( BSON( "c" << 1 << "d" << 1 ) ), FRSP2( BSON( "c" << 1 << "d" << 1 ) ), BSON( "c" << 1 << "d" << 1 ), BSONObj() );
ASSERT( !p4.range( "b" ).nontrivial() );
ASSERT( p4.unhelpful() );
}
};
} // namespace QueryPlanTests
namespace QueryPlanSetTests {
class Base {
public:
Base() : _context( ns() ) {
string err;
userCreateNS( ns(), BSONObj(), err, false );
}
virtual ~Base() {
if ( !nsd() )
return;
NamespaceDetailsTransient::_get( ns() ).clearQueryCache();
dropCollection( ns() );
}
static void assembleRequest( const string &ns, BSONObj query, int nToReturn, int nToSkip, BSONObj *fieldsToReturn, int queryOptions, Message &toSend ) {
// see query.h for the protocol we are using here.
BufBuilder b;
int opts = queryOptions;
b.appendNum(opts);
b.appendStr(ns);
b.appendNum(nToSkip);
b.appendNum(nToReturn);
query.appendSelfToBufBuilder(b);
if ( fieldsToReturn )
fieldsToReturn->appendSelfToBufBuilder(b);
toSend.setData(dbQuery, b.buf(), b.len());
}
protected:
static const char *ns() { return "unittests.QueryPlanSetTests"; }
static NamespaceDetails *nsd() { return nsdetails( ns() ); }
private:
dblock lk_;
Client::Context _context;
};
class NoIndexes : public Base {
public:
void run() {
auto_ptr< FieldRangeSetPair > frsp( new FieldRangeSetPair( ns(), BSON( "a" << 4 ) ) );
auto_ptr< FieldRangeSetPair > frspOrig( new FieldRangeSetPair( *frsp ) );
QueryPlanSet s( ns(), frsp, frspOrig, BSON( "a" << 4 ), BSON( "b" << 1 ) );
ASSERT_EQUALS( 1, s.nPlans() );
}
};
class Optimal : public Base {
public:
void run() {
Helpers::ensureIndex( ns(), BSON( "a" << 1 ), false, "a_1" );
Helpers::ensureIndex( ns(), BSON( "a" << 1 ), false, "b_2" );
auto_ptr< FieldRangeSetPair > frsp( new FieldRangeSetPair( ns(), BSON( "a" << 4 ) ) );
auto_ptr< FieldRangeSetPair > frspOrig( new FieldRangeSetPair( *frsp ) );
QueryPlanSet s( ns(), frsp, frspOrig, BSON( "a" << 4 ), BSONObj() );
ASSERT_EQUALS( 1, s.nPlans() );
}
};
class NoOptimal : public Base {
public:
void run() {
Helpers::ensureIndex( ns(), BSON( "a" << 1 ), false, "a_1" );
Helpers::ensureIndex( ns(), BSON( "b" << 1 ), false, "b_1" );
auto_ptr< FieldRangeSetPair > frsp( new FieldRangeSetPair( ns(), BSON( "a" << 4 ) ) );
auto_ptr< FieldRangeSetPair > frspOrig( new FieldRangeSetPair( *frsp ) );
QueryPlanSet s( ns(), frsp, frspOrig, BSON( "a" << 4 ), BSON( "b" << 1 ) );
ASSERT_EQUALS( 3, s.nPlans() );
}
};
class NoSpec : public Base {
public:
void run() {
Helpers::ensureIndex( ns(), BSON( "a" << 1 ), false, "a_1" );
Helpers::ensureIndex( ns(), BSON( "b" << 1 ), false, "b_1" );
auto_ptr< FieldRangeSetPair > frsp( new FieldRangeSetPair( ns(), BSONObj() ) );
auto_ptr< FieldRangeSetPair > frspOrig( new FieldRangeSetPair( *frsp ) );
QueryPlanSet s( ns(), frsp, frspOrig, BSONObj(), BSONObj() );
ASSERT_EQUALS( 1, s.nPlans() );
}
};
class HintSpec : public Base {
public:
void run() {
Helpers::ensureIndex( ns(), BSON( "a" << 1 ), false, "a_1" );
Helpers::ensureIndex( ns(), BSON( "b" << 1 ), false, "b_1" );
BSONObj b = BSON( "hint" << BSON( "a" << 1 ) );
BSONElement e = b.firstElement();
auto_ptr< FieldRangeSetPair > frsp( new FieldRangeSetPair( ns(), BSON( "a" << 1 ) ) );
auto_ptr< FieldRangeSetPair > frspOrig( new FieldRangeSetPair( *frsp ) );
QueryPlanSet s( ns(), frsp, frspOrig, BSON( "a" << 1 ), BSON( "b" << 1 ), &e );
ASSERT_EQUALS( 1, s.nPlans() );
}
};
class HintName : public Base {
public:
void run() {
Helpers::ensureIndex( ns(), BSON( "a" << 1 ), false, "a_1" );
Helpers::ensureIndex( ns(), BSON( "b" << 1 ), false, "b_1" );
BSONObj b = BSON( "hint" << "a_1" );
BSONElement e = b.firstElement();
auto_ptr< FieldRangeSetPair > frsp( new FieldRangeSetPair( ns(), BSON( "a" << 1 ) ) );
auto_ptr< FieldRangeSetPair > frspOrig( new FieldRangeSetPair( *frsp ) );
QueryPlanSet s( ns(), frsp, frspOrig, BSON( "a" << 1 ), BSON( "b" << 1 ), &e );
ASSERT_EQUALS( 1, s.nPlans() );
}
};
class NaturalHint : public Base {
public:
void run() {
Helpers::ensureIndex( ns(), BSON( "a" << 1 ), false, "a_1" );
Helpers::ensureIndex( ns(), BSON( "b" << 1 ), false, "b_1" );
BSONObj b = BSON( "hint" << BSON( "$natural" << 1 ) );
BSONElement e = b.firstElement();
auto_ptr< FieldRangeSetPair > frsp( new FieldRangeSetPair( ns(), BSON( "a" << 1 ) ) );
auto_ptr< FieldRangeSetPair > frspOrig( new FieldRangeSetPair( *frsp ) );
QueryPlanSet s( ns(), frsp, frspOrig, BSON( "a" << 1 ), BSON( "b" << 1 ), &e );
ASSERT_EQUALS( 1, s.nPlans() );
}
};
class NaturalSort : public Base {
public:
void run() {
Helpers::ensureIndex( ns(), BSON( "a" << 1 ), false, "a_1" );
Helpers::ensureIndex( ns(), BSON( "a" << 1 ), false, "b_2" );
auto_ptr< FieldRangeSetPair > frsp( new FieldRangeSetPair( ns(), BSON( "a" << 1 ) ) );
auto_ptr< FieldRangeSetPair > frspOrig( new FieldRangeSetPair( *frsp ) );
QueryPlanSet s( ns(), frsp, frspOrig, BSON( "a" << 1 ), BSON( "$natural" << 1 ) );
ASSERT_EQUALS( 1, s.nPlans() );
}
};
class BadHint : public Base {
public:
void run() {
BSONObj b = BSON( "hint" << "a_1" );
BSONElement e = b.firstElement();
auto_ptr< FieldRangeSetPair > frsp( new FieldRangeSetPair( ns(), BSON( "a" << 1 ) ) );
auto_ptr< FieldRangeSetPair > frspOrig( new FieldRangeSetPair( *frsp ) );
ASSERT_EXCEPTION( QueryPlanSet s( ns(), frsp, frspOrig, BSON( "a" << 1 ), BSON( "b" << 1 ), &e ),
AssertionException );
}
};
class Count : public Base {
public:
void run() {
Helpers::ensureIndex( ns(), BSON( "a" << 1 ), false, "a_1" );
Helpers::ensureIndex( ns(), BSON( "b" << 1 ), false, "b_1" );
string err;
ASSERT_EQUALS( 0, runCount( ns(), BSON( "query" << BSON( "a" << 4 ) ), err ) );
BSONObj one = BSON( "a" << 1 );
BSONObj fourA = BSON( "a" << 4 );
BSONObj fourB = BSON( "a" << 4 );
theDataFileMgr.insertWithObjMod( ns(), one );
ASSERT_EQUALS( 0, runCount( ns(), BSON( "query" << BSON( "a" << 4 ) ), err ) );
theDataFileMgr.insertWithObjMod( ns(), fourA );
ASSERT_EQUALS( 1, runCount( ns(), BSON( "query" << BSON( "a" << 4 ) ), err ) );
theDataFileMgr.insertWithObjMod( ns(), fourB );
ASSERT_EQUALS( 2, runCount( ns(), BSON( "query" << BSON( "a" << 4 ) ), err ) );
ASSERT_EQUALS( 3, runCount( ns(), BSON( "query" << BSONObj() ), err ) );
ASSERT_EQUALS( 3, runCount( ns(), BSON( "query" << BSON( "a" << GT << 0 ) ), err ) );
// missing ns
ASSERT_EQUALS( -1, runCount( "unittests.missingNS", BSONObj(), err ) );
// impossible match
ASSERT_EQUALS( 0, runCount( ns(), BSON( "query" << BSON( "a" << GT << 0 << LT << -1 ) ), err ) );
}
};
class QueryMissingNs : public Base {
public:
QueryMissingNs() { log() << "querymissingns starts" << endl; }
~QueryMissingNs() {
log() << "end QueryMissingNs" << endl;
}
void run() {
Message m;
assembleRequest( "unittests.missingNS", BSONObj(), 0, 0, 0, 0, m );
DbMessage d(m);
QueryMessage q(d);
Message ret;
runQuery( m, q, ret );
ASSERT_EQUALS( 0, ((QueryResult*)ret.header())->nReturned );
}
};
class UnhelpfulIndex : public Base {
public:
void run() {
Helpers::ensureIndex( ns(), BSON( "a" << 1 ), false, "a_1" );
Helpers::ensureIndex( ns(), BSON( "b" << 1 ), false, "b_1" );
auto_ptr< FieldRangeSetPair > frsp( new FieldRangeSetPair( ns(), BSON( "a" << 1 << "c" << 2 ) ) );
auto_ptr< FieldRangeSetPair > frspOrig( new FieldRangeSetPair( *frsp ) );
QueryPlanSet s( ns(), frsp, frspOrig, BSON( "a" << 1 << "c" << 2 ), BSONObj() );
ASSERT_EQUALS( 2, s.nPlans() );
}
};
class SingleException : public Base {
public:
void run() {
Helpers::ensureIndex( ns(), BSON( "a" << 1 ), false, "a_1" );
Helpers::ensureIndex( ns(), BSON( "b" << 1 ), false, "b_1" );
auto_ptr< FieldRangeSetPair > frsp( new FieldRangeSetPair( ns(), BSON( "a" << 4 ) ) );
auto_ptr< FieldRangeSetPair > frspOrig( new FieldRangeSetPair( *frsp ) );
QueryPlanSet s( ns(), frsp, frspOrig, BSON( "a" << 4 ), BSON( "b" << 1 ) );
ASSERT_EQUALS( 3, s.nPlans() );
bool threw = false;
auto_ptr< TestOp > t( new TestOp( true, threw ) );
boost::shared_ptr< TestOp > done = s.runOp( *t );
ASSERT( threw );
ASSERT( done->complete() );
ASSERT( done->exception().empty() );
ASSERT( !done->error() );
}
private:
class TestOp : public QueryOp {
public:
TestOp( bool iThrow, bool &threw ) : iThrow_( iThrow ), threw_( threw ), i_(), youThrow_( false ) {}
virtual void _init() {}
virtual void next() {
if ( iThrow_ )
threw_ = true;
massert( 10408 , "throw", !iThrow_ );
if ( ++i_ > 10 )
setComplete();
}
virtual QueryOp *_createChild() const {
QueryOp *op = new TestOp( youThrow_, threw_ );
youThrow_ = !youThrow_;
return op;
}
virtual bool mayRecordPlan() const { return true; }
virtual long long nscanned() { return 0; }
private:
bool iThrow_;
bool &threw_;
int i_;
mutable bool youThrow_;
};
};
class AllException : public Base {
public:
void run() {
Helpers::ensureIndex( ns(), BSON( "a" << 1 ), false, "a_1" );
Helpers::ensureIndex( ns(), BSON( "b" << 1 ), false, "b_1" );
auto_ptr< FieldRangeSetPair > frsp( new FieldRangeSetPair( ns(), BSON( "a" << 4 ) ) );
auto_ptr< FieldRangeSetPair > frspOrig( new FieldRangeSetPair( *frsp ) );
QueryPlanSet s( ns(), frsp, frspOrig, BSON( "a" << 4 ), BSON( "b" << 1 ) );
ASSERT_EQUALS( 3, s.nPlans() );
auto_ptr< TestOp > t( new TestOp() );
boost::shared_ptr< TestOp > done = s.runOp( *t );
ASSERT( !done->complete() );
ASSERT_EQUALS( "throw", done->exception().msg );
ASSERT( done->error() );
}
private:
class TestOp : public QueryOp {
public:
virtual void _init() {}
virtual void next() {
massert( 10409 , "throw", false );
}
virtual QueryOp *_createChild() const {
return new TestOp();
}
virtual bool mayRecordPlan() const { return true; }
virtual long long nscanned() { return 0; }
};
};
class SaveGoodIndex : public Base {
public:
void run() {
Helpers::ensureIndex( ns(), BSON( "a" << 1 ), false, "a_1" );
Helpers::ensureIndex( ns(), BSON( "b" << 1 ), false, "b_1" );
nPlans( 3 );
runQuery();
nPlans( 1 );
nPlans( 1 );
Helpers::ensureIndex( ns(), BSON( "c" << 1 ), false, "c_1" );
nPlans( 3 );
runQuery();
nPlans( 1 );
{
DBDirectClient client;
for( int i = 0; i < 34; ++i ) {
client.insert( ns(), BSON( "i" << i ) );
client.update( ns(), QUERY( "i" << i ), BSON( "i" << i + 1 ) );
client.remove( ns(), BSON( "i" << i + 1 ) );
}
}
nPlans( 3 );
auto_ptr< FieldRangeSetPair > frsp( new FieldRangeSetPair( ns(), BSON( "a" << 4 ) ) );
auto_ptr< FieldRangeSetPair > frspOrig( new FieldRangeSetPair( *frsp ) );
QueryPlanSet s( ns(), frsp, frspOrig, BSON( "a" << 4 ), BSON( "b" << 1 ) );
NoRecordTestOp original;
s.runOp( original );
nPlans( 3 );
BSONObj hint = fromjson( "{hint:{$natural:1}}" );
BSONElement hintElt = hint.firstElement();
auto_ptr< FieldRangeSetPair > frsp2( new FieldRangeSetPair( ns(), BSON( "a" << 4 ) ) );
auto_ptr< FieldRangeSetPair > frspOrig2( new FieldRangeSetPair( *frsp2 ) );
QueryPlanSet s2( ns(), frsp2, frspOrig2, BSON( "a" << 4 ), BSON( "b" << 1 ), &hintElt );
TestOp newOriginal;
s2.runOp( newOriginal );
nPlans( 3 );
auto_ptr< FieldRangeSetPair > frsp3( new FieldRangeSetPair( ns(), BSON( "a" << 4 ), true ) );
auto_ptr< FieldRangeSetPair > frspOrig3( new FieldRangeSetPair( *frsp3 ) );
QueryPlanSet s3( ns(), frsp3, frspOrig3, BSON( "a" << 4 ), BSON( "b" << 1 << "c" << 1 ) );
TestOp newerOriginal;
s3.runOp( newerOriginal );
nPlans( 3 );
runQuery();
nPlans( 1 );
}
private:
void nPlans( int n ) {
auto_ptr< FieldRangeSetPair > frsp( new FieldRangeSetPair( ns(), BSON( "a" << 4 ) ) );
auto_ptr< FieldRangeSetPair > frspOrig( new FieldRangeSetPair( *frsp ) );
QueryPlanSet s( ns(), frsp, frspOrig, BSON( "a" << 4 ), BSON( "b" << 1 ) );
ASSERT_EQUALS( n, s.nPlans() );
}
void runQuery() {
auto_ptr< FieldRangeSetPair > frsp( new FieldRangeSetPair( ns(), BSON( "a" << 4 ) ) );
auto_ptr< FieldRangeSetPair > frspOrig( new FieldRangeSetPair( *frsp ) );
QueryPlanSet s( ns(), frsp, frspOrig, BSON( "a" << 4 ), BSON( "b" << 1 ) );
TestOp original;
s.runOp( original );
}
class TestOp : public QueryOp {
public:
virtual void _init() {}
virtual void next() {
setComplete();
}
virtual QueryOp *_createChild() const {
return new TestOp();
}
virtual bool mayRecordPlan() const { return true; }
virtual long long nscanned() { return 0; }
};
class NoRecordTestOp : public TestOp {
virtual bool mayRecordPlan() const { return false; }
virtual QueryOp *_createChild() const { return new NoRecordTestOp(); }
};
};
class TryAllPlansOnErr : public Base {
public:
void run() {
Helpers::ensureIndex( ns(), BSON( "a" << 1 ), false, "a_1" );
auto_ptr< FieldRangeSetPair > frsp( new FieldRangeSetPair( ns(), BSON( "a" << 4 ) ) );
auto_ptr< FieldRangeSetPair > frspOrig( new FieldRangeSetPair( *frsp ) );
QueryPlanSet s( ns(), frsp, frspOrig, BSON( "a" << 4 ), BSON( "b" << 1 ) );
ScanOnlyTestOp op;
s.runOp( op );
pair< BSONObj, long long > best = QueryUtilIndexed::bestIndexForPatterns( s.frsp(), BSON( "b" << 1 ) );
ASSERT( fromjson( "{$natural:1}" ).woCompare( best.first ) == 0 );
ASSERT_EQUALS( 1, best.second );
auto_ptr< FieldRangeSetPair > frsp2( new FieldRangeSetPair( ns(), BSON( "a" << 4 ) ) );
auto_ptr< FieldRangeSetPair > frspOrig2( new FieldRangeSetPair( *frsp2 ) );
QueryPlanSet s2( ns(), frsp2, frspOrig2, BSON( "a" << 4 ), BSON( "b" << 1 ) );
TestOp op2;
ASSERT( s2.runOp( op2 )->complete() );
}
private:
class TestOp : public QueryOp {
public:
TestOp() {}
virtual void _init() {}
virtual void next() {
if ( qp().indexKey().firstElementFieldName() == string( "$natural" ) )
massert( 10410 , "throw", false );
setComplete();
}
virtual QueryOp *_createChild() const {
return new TestOp();
}
virtual bool mayRecordPlan() const { return true; }
virtual long long nscanned() { return 1; }
};
class ScanOnlyTestOp : public TestOp {
virtual void next() {
if ( qp().indexKey().firstElement().fieldName() == string( "$natural" ) )
setComplete();
massert( 10411 , "throw", false );
}
virtual QueryOp *_createChild() const {
return new ScanOnlyTestOp();
}
};
};
class FindOne : public Base {
public:
void run() {
BSONObj one = BSON( "a" << 1 );
theDataFileMgr.insertWithObjMod( ns(), one );
BSONObj result;
ASSERT( Helpers::findOne( ns(), BSON( "a" << 1 ), result ) );
ASSERT_EXCEPTION( Helpers::findOne( ns(), BSON( "a" << 1 ), result, true ), AssertionException );
Helpers::ensureIndex( ns(), BSON( "a" << 1 ), false, "a_1" );
ASSERT( Helpers::findOne( ns(), BSON( "a" << 1 ), result, true ) );
}
};
class Delete : public Base {
public:
void run() {
Helpers::ensureIndex( ns(), BSON( "a" << 1 ), false, "a_1" );
for( int i = 0; i < 200; ++i ) {
BSONObj two = BSON( "a" << 2 );
theDataFileMgr.insertWithObjMod( ns(), two );
}
BSONObj one = BSON( "a" << 1 );
theDataFileMgr.insertWithObjMod( ns(), one );
deleteObjects( ns(), BSON( "a" << 1 ), false );
ASSERT( BSON( "a" << 1 ).woCompare( NamespaceDetailsTransient::_get( ns() ).indexForPattern( FieldRangeSet( ns(), BSON( "a" << 1 ), true ).pattern() ) ) == 0 );
ASSERT_EQUALS( 1, NamespaceDetailsTransient::_get( ns() ).nScannedForPattern( FieldRangeSet( ns(), BSON( "a" << 1 ), true ).pattern() ) );
}
};
class DeleteOneScan : public Base {
public:
void run() {
Helpers::ensureIndex( ns(), BSON( "_id" << 1 ), false, "_id_1" );
BSONObj one = BSON( "_id" << 3 << "a" << 1 );
BSONObj two = BSON( "_id" << 2 << "a" << 1 );
BSONObj three = BSON( "_id" << 1 << "a" << -1 );
theDataFileMgr.insertWithObjMod( ns(), one );
theDataFileMgr.insertWithObjMod( ns(), two );
theDataFileMgr.insertWithObjMod( ns(), three );
deleteObjects( ns(), BSON( "_id" << GT << 0 << "a" << GT << 0 ), true );
for( boost::shared_ptr<Cursor> c = theDataFileMgr.findAll( ns() ); c->ok(); c->advance() )
ASSERT( 3 != c->current().getIntField( "_id" ) );
}
};
class DeleteOneIndex : public Base {
public:
void run() {
Helpers::ensureIndex( ns(), BSON( "a" << 1 ), false, "a" );
BSONObj one = BSON( "a" << 2 << "_id" << 0 );
BSONObj two = BSON( "a" << 1 << "_id" << 1 );
BSONObj three = BSON( "a" << 0 << "_id" << 2 );
theDataFileMgr.insertWithObjMod( ns(), one );
theDataFileMgr.insertWithObjMod( ns(), two );
theDataFileMgr.insertWithObjMod( ns(), three );
deleteObjects( ns(), BSON( "a" << GTE << 0 ), true );
for( boost::shared_ptr<Cursor> c = theDataFileMgr.findAll( ns() ); c->ok(); c->advance() )
ASSERT( 2 != c->current().getIntField( "_id" ) );
}
};
class TryOtherPlansBeforeFinish : public Base {
public:
void run() {
Helpers::ensureIndex( ns(), BSON( "a" << 1 ), false, "a_1" );
for( int i = 0; i < 100; ++i ) {
for( int j = 0; j < 2; ++j ) {
BSONObj temp = BSON( "a" << 100 - i - 1 << "b" << i );
theDataFileMgr.insertWithObjMod( ns(), temp );
}
}
Message m;
// Need to return at least 2 records to cause plan to be recorded.
assembleRequest( ns(), QUERY( "b" << 0 << "a" << GTE << 0 ).obj, 2, 0, 0, 0, m );
stringstream ss;
{
DbMessage d(m);
QueryMessage q(d);
runQuery( m, q);
}
ASSERT( BSON( "$natural" << 1 ).woCompare( NamespaceDetailsTransient::_get( ns() ).indexForPattern( FieldRangeSet( ns(), BSON( "b" << 0 << "a" << GTE << 0 ), true ).pattern() ) ) == 0 );
Message m2;
assembleRequest( ns(), QUERY( "b" << 99 << "a" << GTE << 0 ).obj, 2, 0, 0, 0, m2 );
{
DbMessage d(m2);
QueryMessage q(d);
runQuery( m2, q);
}
ASSERT( BSON( "a" << 1 ).woCompare( NamespaceDetailsTransient::_get( ns() ).indexForPattern( FieldRangeSet( ns(), BSON( "b" << 0 << "a" << GTE << 0 ), true ).pattern() ) ) == 0 );
ASSERT_EQUALS( 3, NamespaceDetailsTransient::_get( ns() ).nScannedForPattern( FieldRangeSet( ns(), BSON( "b" << 0 << "a" << GTE << 0 ), true ).pattern() ) );
}
};
class InQueryIntervals : public Base {
public:
void run() {
Helpers::ensureIndex( ns(), BSON( "a" << 1 ), false, "a_1" );
for( int i = 0; i < 10; ++i ) {
BSONObj temp = BSON( "a" << i );
theDataFileMgr.insertWithObjMod( ns(), temp );
}
BSONObj hint = fromjson( "{$hint:{a:1}}" );
BSONElement hintElt = hint.firstElement();
auto_ptr< FieldRangeSetPair > frsp( new FieldRangeSetPair( ns(), fromjson( "{a:{$in:[2,3,6,9,11]}}" ) ) );
auto_ptr< FieldRangeSetPair > frspOrig( new FieldRangeSetPair( *frsp ) );
QueryPlanSet s( ns(), frsp, frspOrig, fromjson( "{a:{$in:[2,3,6,9,11]}}" ), BSONObj(), &hintElt );
QueryPlan qp( nsd(), 1, s.frsp(), s.originalFrsp(), fromjson( "{a:{$in:[2,3,6,9,11]}}" ), BSONObj() );
boost::shared_ptr<Cursor> c = qp.newCursor();
double expected[] = { 2, 3, 6, 9 };
for( int i = 0; i < 4; ++i, c->advance() ) {
ASSERT_EQUALS( expected[ i ], c->current().getField( "a" ).number() );
}
ASSERT( !c->ok() );
// now check reverse
{
auto_ptr< FieldRangeSetPair > frsp( new FieldRangeSetPair( ns(), fromjson( "{a:{$in:[2,3,6,9,11]}}" ) ) );
auto_ptr< FieldRangeSetPair > frspOrig( new FieldRangeSetPair( *frsp ) );
QueryPlanSet s( ns(), frsp, frspOrig, fromjson( "{a:{$in:[2,3,6,9,11]}}" ), BSON( "a" << -1 ), &hintElt );
QueryPlan qp( nsd(), 1, s.frsp(), s.originalFrsp(), fromjson( "{a:{$in:[2,3,6,9,11]}}" ), BSON( "a" << -1 ) );
boost::shared_ptr<Cursor> c = qp.newCursor();
double expected[] = { 9, 6, 3, 2 };
for( int i = 0; i < 4; ++i, c->advance() ) {
ASSERT_EQUALS( expected[ i ], c->current().getField( "a" ).number() );
}
ASSERT( !c->ok() );
}
}
};
class EqualityThenIn : public Base {
public:
void run() {
Helpers::ensureIndex( ns(), BSON( "a" << 1 << "b" << 1 ), false, "a_1_b_1" );
for( int i = 0; i < 10; ++i ) {
BSONObj temp = BSON( "a" << 5 << "b" << i );
theDataFileMgr.insertWithObjMod( ns(), temp );
}
BSONObj hint = fromjson( "{$hint:{a:1,b:1}}" );
auto_ptr< FieldRangeSetPair > frsp( new FieldRangeSetPair( ns(), fromjson( "{a:5,b:{$in:[2,3,6,9,11]}}" ) ) );
QueryPlan qp( nsd(), 1, *frsp, *frsp, fromjson( "{a:5,b:{$in:[2,3,6,9,11]}}" ), BSONObj() );
boost::shared_ptr<Cursor> c = qp.newCursor();
double expected[] = { 2, 3, 6, 9 };
ASSERT( c->ok() );
for( int i = 0; i < 4; ++i, c->advance() ) {
ASSERT( c->ok() );
ASSERT_EQUALS( expected[ i ], c->current().getField( "b" ).number() );
}
ASSERT( !c->ok() );
}
};
class NotEqualityThenIn : public Base {
public:
void run() {
Helpers::ensureIndex( ns(), BSON( "a" << 1 << "b" << 1 ), false, "a_1_b_1" );
for( int i = 0; i < 10; ++i ) {
BSONObj temp = BSON( "a" << 5 << "b" << i );
theDataFileMgr.insertWithObjMod( ns(), temp );
}
BSONObj hint = fromjson( "{$hint:{a:1,b:1}}" );
auto_ptr< FieldRangeSetPair > frsp( new FieldRangeSetPair( ns(), fromjson( "{a:{$gte:5},b:{$in:[2,3,6,9,11]}}" ) ) );
QueryPlan qp( nsd(), 1, *frsp, *frsp, fromjson( "{a:{$gte:5},b:{$in:[2,3,6,9,11]}}" ), BSONObj() );
boost::shared_ptr<Cursor> c = qp.newCursor();
int matches[] = { 2, 3, 6, 9 };
for( int i = 0; i < 4; ++i, c->advance() ) {
ASSERT_EQUALS( matches[ i ], c->current().getField( "b" ).number() );
}
ASSERT( !c->ok() );
}
};
} // namespace QueryPlanSetTests
class Base {
public:
Base() : _ctx( ns() ) {
string err;
userCreateNS( ns(), BSONObj(), err, false );
}
~Base() {
if ( !nsd() )
return;
string s( ns() );
dropCollection( ns() );
}
protected:
static const char *ns() { return "unittests.QueryOptimizerTests"; }
static NamespaceDetails *nsd() { return nsdetails( ns() ); }
private:
dblock lk_;
Client::Context _ctx;
};
class BestGuess : public Base {
public:
void run() {
Helpers::ensureIndex( ns(), BSON( "a" << 1 ), false, "a_1" );
Helpers::ensureIndex( ns(), BSON( "b" << 1 ), false, "b_1" );
BSONObj temp = BSON( "a" << 1 );
theDataFileMgr.insertWithObjMod( ns(), temp );
temp = BSON( "b" << 1 );
theDataFileMgr.insertWithObjMod( ns(), temp );
boost::shared_ptr< Cursor > c = bestGuessCursor( ns(), BSON( "b" << 1 ), BSON( "a" << 1 ) );
ASSERT_EQUALS( string( "a" ), c->indexKeyPattern().firstElement().fieldName() );
c = bestGuessCursor( ns(), BSON( "a" << 1 ), BSON( "b" << 1 ) );
ASSERT_EQUALS( string( "b" ), c->indexKeyPattern().firstElementFieldName() );
boost::shared_ptr< MultiCursor > m = dynamic_pointer_cast< MultiCursor >( bestGuessCursor( ns(), fromjson( "{b:1,$or:[{z:1}]}" ), BSON( "a" << 1 ) ) );
ASSERT_EQUALS( string( "a" ), m->sub_c()->indexKeyPattern().firstElement().fieldName() );
m = dynamic_pointer_cast< MultiCursor >( bestGuessCursor( ns(), fromjson( "{a:1,$or:[{y:1}]}" ), BSON( "b" << 1 ) ) );
ASSERT_EQUALS( string( "b" ), m->sub_c()->indexKeyPattern().firstElementFieldName() );
FieldRangeSet frs( "ns", BSON( "a" << 1 ), true );
{
scoped_lock lk(NamespaceDetailsTransient::_qcMutex);
NamespaceDetailsTransient::get_inlock( ns() ).registerIndexForPattern( frs.pattern( BSON( "b" << 1 ) ), BSON( "a" << 1 ), 0 );
}
m = dynamic_pointer_cast< MultiCursor >( bestGuessCursor( ns(), fromjson( "{a:1,$or:[{y:1}]}" ), BSON( "b" << 1 ) ) );
ASSERT_EQUALS( string( "b" ), m->sub_c()->indexKeyPattern().firstElement().fieldName() );
}
};
namespace QueryOptimizerCursorTests {
using boost::shared_ptr;
class Base {
public:
Base() {
dblock lk;
Client::Context ctx( ns() );
string err;
userCreateNS( ns(), BSONObj(), err, false );
dropCollection( ns() );
}
~Base() {
cc().curop()->reset();
}
protected:
DBDirectClient _cli;
static const char *ns() { return "unittests.QueryOptimizerTests"; }
void setQueryOptimizerCursor( const BSONObj &query, const BSONObj &order = BSONObj() ) {
_c = newQueryOptimizerCursor( ns(), query, order );
if ( ok() && !mayReturnCurrent() ) {
advance();
}
}
bool ok() const { return _c->ok(); }
/** Handles matching and deduping. */
bool advance() {
while( _c->advance() && !mayReturnCurrent() );
return ok();
}
int itcount() {
int ret = 0;
while( ok() ) {
++ret;
advance();
}
return ret;
}
BSONObj current() const { return _c->current(); }