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https://github.com/mongodb/mongo.git
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39 lines
1.1 KiB
JavaScript
39 lines
1.1 KiB
JavaScript
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t = db.index_diag
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t.drop();
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t.ensureIndex( { x : 1 } );
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all = []
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ids = []
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xs = []
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function r( a ){
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var n = []
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for ( var x=a.length-1; x>=0; x-- )
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n.push( a[x] );
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return n;
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}
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for ( i=1; i<4; i++ ){
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o = { _id : i , x : -i }
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t.insert( o );
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all.push( o );
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ids.push( { _id : i } );
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xs.push( { x : -i } );
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}
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assert.eq( all , t.find().sort( { _id : 1 } ).toArray() , "A1" );
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assert.eq( r( all ) , t.find().sort( { _id : -1 } ).toArray() , "A2" );
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assert.eq( all , t.find().sort( { x : -1 } ).toArray() , "A3" );
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assert.eq( r( all ) , t.find().sort( { x : 1 } ).toArray() , "A4" );
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assert.eq( ids , t.find().sort( { _id : 1 } )._addSpecial( "$returnKey" , true ).toArray() , "B1" )
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assert.eq( r( ids ) , t.find().sort( { _id : -1 } )._addSpecial( "$returnKey" , true ).toArray() , "B2" )
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assert.eq( xs , t.find().sort( { x : -1 } )._addSpecial( "$returnKey" , true ).toArray() , "B3" )
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assert.eq( r( xs ) , t.find().sort( {x : 1 } )._addSpecial( "$returnKey" , true ).toArray() , "B4" )
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assert.eq( r( xs ) , t.find().hint( { x : 1 } )._addSpecial( "$returnKey" , true ).toArray() , "B4" )
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