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67 lines
2.4 KiB
JavaScript
67 lines
2.4 KiB
JavaScript
// Check key match with sub matchers - part of SERVER-3192
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t = db.jstests_and3;
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t.drop();
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t.save( {a:1} );
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t.save( {a:'foo'} );
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t.ensureIndex( {a:1} );
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function checkScanMatch( query, nscannedObjects, n ) {
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var e = t.find( query ).hint( {a:1} ).explain();
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// NOTE The nscannedObjects values aren't necessarily optimal currently,
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// we're just checking current behavior here.
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assert.eq( nscannedObjects, e.nscannedObjects );
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assert.eq( n, e.n );
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}
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checkScanMatch( {a:/o/}, 1, 1 );
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checkScanMatch( {a:/a/}, 0, 0 );
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checkScanMatch( {a:{$not:/o/}}, 2, 1 );
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checkScanMatch( {a:{$not:/a/}}, 2, 2 );
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checkScanMatch( {$and:[{a:/o/}]}, 1, 1 );
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checkScanMatch( {$and:[{a:/a/}]}, 0, 0 );
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checkScanMatch( {$and:[{a:{$not:/o/}}]}, 2, 1 );
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checkScanMatch( {$and:[{a:{$not:/a/}}]}, 2, 2 );
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checkScanMatch( {$and:[{a:/o/},{a:{$not:/o/}}]}, 1, 0 );
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checkScanMatch( {$and:[{a:/o/},{a:{$not:/a/}}]}, 1, 1 );
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checkScanMatch( {$or:[{a:/o/}]}, 1, 1 );
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checkScanMatch( {$or:[{a:/a/}]}, 0, 0 );
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checkScanMatch( {$nor:[{a:/o/}]}, 2, 1 );
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checkScanMatch( {$nor:[{a:/a/}]}, 2, 2 );
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checkScanMatch( {$and:[{$and:[{a:/o/}]}]}, 1, 1 );
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checkScanMatch( {$and:[{$and:[{a:/a/}]}]}, 0, 0 );
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checkScanMatch( {$and:[{$and:[{a:{$not:/o/}}]}]}, 2, 1 );
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checkScanMatch( {$and:[{$and:[{a:{$not:/a/}}]}]}, 2, 2 );
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checkScanMatch( {$and:[{$or:[{a:/o/}]}]}, 1, 1 );
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checkScanMatch( {$and:[{$or:[{a:/a/}]}]}, 0, 0 );
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checkScanMatch( {$or:[{a:{$not:/o/}}]}, 2, 1 );
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checkScanMatch( {$and:[{$or:[{a:{$not:/o/}}]}]}, 2, 1 );
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checkScanMatch( {$and:[{$or:[{a:{$not:/a/}}]}]}, 2, 2 );
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checkScanMatch( {$and:[{$nor:[{a:/o/}]}]}, 2, 1 );
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checkScanMatch( {$and:[{$nor:[{a:/a/}]}]}, 2, 2 );
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checkScanMatch( {$where:'this.a==1'}, 2, 1 );
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checkScanMatch( {$and:[{$where:'this.a==1'}]}, 2, 1 );
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checkScanMatch( {a:1,$where:'this.a==1'}, 1, 1 );
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checkScanMatch( {a:1,$and:[{$where:'this.a==1'}]}, 1, 1 );
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checkScanMatch( {$and:[{a:1},{$where:'this.a==1'}]}, 1, 1 );
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checkScanMatch( {$and:[{a:1,$where:'this.a==1'}]}, 1, 1 );
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checkScanMatch( {a:1,$and:[{a:1},{a:1,$where:'this.a==1'}]}, 1, 1 );
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function checkImpossibleMatch( query ) {
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var e = t.find( query ).explain();
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assert.eq( 0, e.n );
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assert.eq( 'BasicCursor', e.cursor );
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}
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// With a single key index, all bounds are utilized.
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assert.eq( [[1,1]], t.find( {$and:[{a:1}]} ).explain().indexBounds.a );
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assert.eq( [[1,1]], t.find( {a:1,$and:[{a:1}]} ).explain().indexBounds.a );
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checkImpossibleMatch( {a:1,$and:[{a:2}]} );
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checkImpossibleMatch( {$and:[{a:1},{a:2}]} );
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