65 lines
1.6 KiB
JavaScript
65 lines
1.6 KiB
JavaScript
// Check recording and playback of good query plans with different index types SERVER-958.
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t = db.jstests_indexp;
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t.drop();
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function expectRecordedPlan( query, idx ) {
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assert.eq( "BtreeCursor " + idx, t.find( query ).explain( true ).oldPlan.cursor );
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}
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function expectNoRecordedPlan( query ) {
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assert.isnull( t.find( query ).explain( true ).oldPlan );
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}
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// Basic test
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t.drop();
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t.ensureIndex( {a:1} );
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t.save( {a:1} );
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t.find( {a:1} ).itcount();
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expectRecordedPlan( {a:1}, "a_1" );
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// Index type changes
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t.drop();
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t.ensureIndex( {a:1} );
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t.save( {a:1} );
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t.find( {a:1} ).itcount();
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t.save( {a:[1,2]} );
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expectRecordedPlan( {a:1}, "a_1" );
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// Multi key QueryPattern reuses index
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t.drop();
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t.ensureIndex( {a:1} );
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t.save( {a:[1,2]} );
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t.find( {a:{$gt:0}} ).itcount();
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expectRecordedPlan( {a:{$gt:0,$lt:5}}, "a_1" );
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// Single key QueryPattern can still be used to find best plan - at least for now.
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t.drop();
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t.ensureIndex( {a:1} );
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t.save( {a:1} );
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t.find( {a:{$gt:0,$lt:5}} ).itcount();
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t.save( {a:[1,2]} );
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expectRecordedPlan( {a:{$gt:0,$lt:5}}, "a_1" );
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// Invalid query with only valid fields used
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// SERVER-2864
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t.drop();
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t.ensureIndex( {a:1} );
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t.save( {a:1} );
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t.find( {a:1,b:{$gt:5,$lt:0}} ).itcount();
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expectRecordedPlan( {a:1,b:{$gt:0,$lt:5}}, "a_1" );
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// SERVER-2864
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t.drop();
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t.ensureIndex( {a:1} );
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t.save( {a:1} );
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t.find( {a:{$gt:5,$lt:0}} ).itcount();
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expectNoRecordedPlan( {a:{$gt:0,$lt:5}}, "a_1" );
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// Dummy query plan not stored
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t.drop();
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t.ensureIndex( {a:1} );
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t.save( {a:1} );
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t.find( {a:{$gt:5,$lt:0}} ).itcount();
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expectNoRecordedPlan( {a:{$gt:5,$lt:0}} );
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