[ { "Name": "TestUniqCompEqualEst", "Cases": [ [ "Point_Get_5 1.00 root table:t, index:PRIMARY(a, b) " ] ] }, { "Name": "TestColumnIndexNullEstimation", "Cases": [ [ "IndexReader_6 4.00 root index:IndexFullScan_5", "└─IndexFullScan_5 4.00 cop[tikv] table:t, index:idx_b(b) keep order:false" ], [ "IndexReader_6 1.00 root index:IndexFullScan_5", "└─IndexFullScan_5 1.00 cop[tikv] table:t, index:idx_b(b) keep order:false" ], [ "IndexReader_6 4.00 root index:IndexRangeScan_5", "└─IndexRangeScan_5 4.00 cop[tikv] table:t, index:idx_b(b) range:[NULL,NULL], (3,+inf], keep order:false" ], [ "IndexReader_5 5.00 root index:IndexFullScan_4", "└─IndexFullScan_4 5.00 cop[tikv] table:t, index:idx_b(b) keep order:false" ], [ "IndexReader_6 1.00 root index:IndexRangeScan_5", "└─IndexRangeScan_5 1.00 cop[tikv] table:t, index:idx_b(b) range:[-inf,4), keep order:false" ], [ "TableReader_7 1.00 root data:Selection_6", "└─Selection_6 1.00 cop[tikv] isnull(test.t.a)", " └─TableFullScan_5 5.00 cop[tikv] table:t keep order:false" ], [ "TableReader_7 4.00 root data:Selection_6", "└─Selection_6 4.00 cop[tikv] not(isnull(test.t.a))", " └─TableFullScan_5 5.00 cop[tikv] table:t keep order:false" ], [ "TableReader_7 2.00 root data:Selection_6", "└─Selection_6 2.00 cop[tikv] or(isnull(test.t.a), gt(test.t.a, 3))", " └─TableFullScan_5 5.00 cop[tikv] table:t keep order:false" ], [ "TableReader_5 5.00 root data:TableFullScan_4", "└─TableFullScan_4 5.00 cop[tikv] table:t keep order:false" ], [ "TableReader_7 3.00 root data:Selection_6", "└─Selection_6 3.00 cop[tikv] lt(test.t.a, 4)", " └─TableFullScan_5 5.00 cop[tikv] table:t keep order:false" ] ] }, { "Name": "TestDiscreteDistribution", "Cases": [ [ "IndexReader_6 0.00 root index:IndexRangeScan_5", "└─IndexRangeScan_5 0.00 cop[tikv] table:t, index:idx(a, b) range:[\"tw\" -inf,\"tw\" 0), keep order:false" ] ] }, { "Name": "TestPrimaryKeySelectivity", "Cases": [ [ "TableReader_7 3333.33 root data:Selection_6", "└─Selection_6 3333.33 cop[tikv] gt(test.t.a, \"t\")", " └─TableFullScan_5 10000.00 cop[tikv] table:t keep order:false, stats:pseudo" ], [ "TableReader_6 3333.33 root data:TableRangeScan_5", "└─TableRangeScan_5 3333.33 cop[tikv] table:t range:(1,+inf], keep order:false, stats:pseudo" ] ] }, { "Name": "TestSelectCombinedLowBound", "Cases": [ [ "IndexReader_6 7.00 root index:IndexRangeScan_5", "└─IndexRangeScan_5 7.00 cop[tikv] table:t, index:kid(kid, pid) range:[1,1], keep order:false" ] ] }, { "Name": "TestCollationColumnEstimate", "Cases": [ [ "test t a 0 0 2 2 \u0000A\u0000A\u0000A \u0000A\u0000A\u0000A", "test t a 0 1 4 2 \u0000B\u0000B\u0000B \u0000B\u0000B\u0000B" ], [ "TableReader_7 2.00 root data:Selection_6", "└─Selection_6 2.00 cop[tikv] eq(test.t.a, \"aÄa\")", " └─TableFullScan_5 4.00 cop[tikv] table:t keep order:false" ], [ "TableReader_7 2.00 root data:Selection_6", "└─Selection_6 2.00 cop[tikv] gt(test.t.a, \"aÄa\")", " └─TableFullScan_5 4.00 cop[tikv] table:t keep order:false" ] ] } ]