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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,102 @@ | ||
| // Copyright 2018 PingCAP, Inc. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package core | ||
|
|
||
| import ( | ||
| "fmt" | ||
|
|
||
| "github.com/pingcap/tidb/pkg/expression" | ||
| "github.com/pingcap/tidb/pkg/parser/model" | ||
| "github.com/pingcap/tidb/pkg/parser/mysql" | ||
| "github.com/pingcap/tidb/pkg/planner/core/base" | ||
| "github.com/pingcap/tidb/pkg/planner/property" | ||
| "github.com/pingcap/tidb/pkg/types" | ||
| ) | ||
|
|
||
| type mockLogicalJoinForJoinOrder struct { | ||
| logicalSchemaProducer | ||
| involvedNodeSet int | ||
| statsMap map[int]*property.StatsInfo | ||
| JoinType JoinType | ||
| } | ||
|
|
||
| func (mj mockLogicalJoinForJoinOrder) init(ctx base.PlanContext) *mockLogicalJoinForJoinOrder { | ||
| mj.baseLogicalPlan = newBaseLogicalPlan(ctx, "MockLogicalJoin", &mj, 0) | ||
| return &mj | ||
| } | ||
|
|
||
| // NewMockJoinForJoinOrder creates a LogicalJoin node for join order testing testing. | ||
| func NewMockJoinForJoinOrder(ctx base.PlanContext, statsMap map[int]*property.StatsInfo) func(lChild, rChild base.LogicalPlan, _ []*expression.ScalarFunction, _, _, _ []expression.Expression, joinType JoinType) base.LogicalPlan { | ||
| return func(lChild, rChild base.LogicalPlan, _ []*expression.ScalarFunction, _, _, _ []expression.Expression, joinType JoinType) base.LogicalPlan { | ||
| retJoin := mockLogicalJoinForJoinOrder{}.init(ctx) | ||
| retJoin.schema = expression.MergeSchema(lChild.Schema(), rChild.Schema()) | ||
| retJoin.statsMap = statsMap | ||
| if mj, ok := lChild.(*mockLogicalJoinForJoinOrder); ok { | ||
| retJoin.involvedNodeSet = mj.involvedNodeSet | ||
| } else { | ||
| retJoin.involvedNodeSet = 1 << uint(lChild.ID()) | ||
| } | ||
| if mj, ok := rChild.(*mockLogicalJoinForJoinOrder); ok { | ||
| retJoin.involvedNodeSet |= mj.involvedNodeSet | ||
| } else { | ||
| retJoin.involvedNodeSet |= 1 << uint(rChild.ID()) | ||
| } | ||
| retJoin.SetChildren(lChild, rChild) | ||
| retJoin.JoinType = joinType | ||
| return retJoin | ||
| } | ||
| } | ||
|
|
||
| // MockDataSource make logical DataSource. | ||
| func MockJoin(ctx base.PlanContext, leftPlan base.LogicalPlan, rightPlan base.LogicalPlan, joinType JoinType) base.LogicalPlan { | ||
| joinPlan := LogicalJoin{}.Init(ctx, 0) | ||
| joinPlan.SetChildren(leftPlan, rightPlan) | ||
| joinPlan.SetSchema(expression.MergeSchema(leftPlan.Schema(), rightPlan.Schema())) | ||
| joinPlan.names = make([]*types.FieldName, leftPlan.Schema().Len()+rightPlan.Schema().Len()) | ||
| copy(joinPlan.names, leftPlan.OutputNames()) | ||
| copy(joinPlan.names[leftPlan.Schema().Len():], rightPlan.OutputNames()) | ||
| joinPlan.JoinType = joinType | ||
| return joinPlan | ||
| } | ||
|
|
||
| // MockDataSource make logical DataSource. | ||
| func MockDataSource(ctx base.PlanContext, name string, count int) base.LogicalPlan { | ||
| ds := DataSource{}.Init(ctx, 0) | ||
| tan := model.NewCIStr(name) | ||
| ds.TableAsName = &tan | ||
| ds.schema = expression.NewSchema() | ||
| ds.schema.Append(&expression.Column{ | ||
| UniqueID: ctx.GetSessionVars().PlanColumnID.Add(1), | ||
| RetType: types.NewFieldType(mysql.TypeLonglong), | ||
| }) | ||
| ds.SetStats(&property.StatsInfo{ | ||
| RowCount: float64(count), | ||
| }) | ||
| return ds | ||
| } | ||
|
|
||
| // PlanToString serializes some logical plan nodes to string. | ||
| func PlanToString(plan base.LogicalPlan) string { | ||
| switch x := plan.(type) { | ||
| case *mockLogicalJoinForJoinOrder: | ||
| return fmt.Sprintf("MockJoin{%v, %v}", PlanToString(x.children[0]), PlanToString(x.children[1])) | ||
| case *LogicalJoin: | ||
| return fmt.Sprintf("MockJoin{%v, %v}", PlanToString(x.children[0]), PlanToString(x.children[1])) | ||
| case *DataSource: | ||
| return x.TableAsName.L | ||
| } | ||
| return "" | ||
| } | ||
|
|