2c6d1cf8fa
HashSemiJoin is only used in Apply, it exists only because NestedLoopJoin doesn't support SemiJoin type. This PR support SemiJoin type in NestedLoopJoin executor, so HashSemiJoin can be removed.
262 lines
7.8 KiB
Go
262 lines
7.8 KiB
Go
// Copyright 2017 PingCAP, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package plan
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import (
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"bytes"
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"fmt"
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"github.com/pingcap/tidb/expression"
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"github.com/pingcap/tidb/expression/aggregation"
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)
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// ExplainInfo implements PhysicalPlan interface.
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func (p *PhysicalLock) ExplainInfo() string {
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return p.Lock.String()
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}
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// ExplainInfo implements PhysicalPlan interface.
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func (p *PhysicalIndexScan) ExplainInfo() string {
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buffer := bytes.NewBufferString("")
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tblName := p.Table.Name.O
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if p.TableAsName != nil && p.TableAsName.O != "" {
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tblName = p.TableAsName.O
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}
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buffer.WriteString(fmt.Sprintf("table:%s", tblName))
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if len(p.Index.Columns) > 0 {
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buffer.WriteString(", index:")
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for i, idxCol := range p.Index.Columns {
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buffer.WriteString(idxCol.Name.O)
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if i+1 < len(p.Index.Columns) {
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buffer.WriteString(", ")
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}
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}
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}
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if len(p.Ranges) > 0 {
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buffer.WriteString(", range:")
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for i, idxRange := range p.Ranges {
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buffer.WriteString(idxRange.String())
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if i+1 < len(p.Ranges) {
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buffer.WriteString(", ")
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}
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}
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}
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buffer.WriteString(fmt.Sprintf(", out of order:%v", p.OutOfOrder))
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if p.Desc {
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buffer.WriteString(", desc")
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}
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return buffer.String()
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}
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// ExplainInfo implements PhysicalPlan interface.
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func (p *PhysicalTableScan) ExplainInfo() string {
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buffer := bytes.NewBufferString("")
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tblName := p.Table.Name.O
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if p.TableAsName != nil && p.TableAsName.O != "" {
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tblName = p.TableAsName.O
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}
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buffer.WriteString(fmt.Sprintf("table:%s", tblName))
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if p.pkCol != nil {
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buffer.WriteString(fmt.Sprintf(", pk col:%s", p.pkCol.ExplainInfo()))
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}
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if len(p.Ranges) > 0 {
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buffer.WriteString(", range:")
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for i, idxRange := range p.Ranges {
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buffer.WriteString(idxRange.String())
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if i+1 < len(p.Ranges) {
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buffer.WriteString(", ")
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}
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}
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}
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buffer.WriteString(fmt.Sprintf(", keep order:%v", p.KeepOrder))
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if p.Desc {
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buffer.WriteString(", desc")
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}
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return buffer.String()
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}
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// ExplainInfo implements PhysicalPlan interface.
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func (p *PhysicalTableReader) ExplainInfo() string {
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return fmt.Sprintf("data:%s", p.tablePlan.ExplainID())
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}
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// ExplainInfo implements PhysicalPlan interface.
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func (p *PhysicalIndexReader) ExplainInfo() string {
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return fmt.Sprintf("index:%s", p.indexPlan.ExplainID())
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}
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// ExplainInfo implements PhysicalPlan interface.
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func (p *PhysicalIndexLookUpReader) ExplainInfo() string {
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return fmt.Sprintf("index:%s, table:%s", p.indexPlan.ExplainID(), p.tablePlan.ExplainID())
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}
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// ExplainInfo implements PhysicalPlan interface.
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func (p *PhysicalUnionScan) ExplainInfo() string {
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return string(expression.ExplainExpressionList(p.Conditions))
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}
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// ExplainInfo implements PhysicalPlan interface.
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func (p *PhysicalSelection) ExplainInfo() string {
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return string(expression.ExplainExpressionList(p.Conditions))
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}
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// ExplainInfo implements PhysicalPlan interface.
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func (p *PhysicalProjection) ExplainInfo() string {
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return string(expression.ExplainExpressionList(p.Exprs))
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}
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// ExplainInfo implements PhysicalPlan interface.
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func (p *PhysicalTableDual) ExplainInfo() string {
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return fmt.Sprintf("rows:%v", p.RowCount)
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}
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// ExplainInfo implements PhysicalPlan interface.
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func (p *PhysicalSort) ExplainInfo() string {
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buffer := bytes.NewBufferString("")
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for i, item := range p.ByItems {
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order := "asc"
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if item.Desc {
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order = "desc"
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}
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buffer.WriteString(fmt.Sprintf("%s:%s", item.Expr.ExplainInfo(), order))
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if i+1 < len(p.ByItems) {
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buffer.WriteString(", ")
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}
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}
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return buffer.String()
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}
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// ExplainInfo implements PhysicalPlan interface.
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func (p *PhysicalLimit) ExplainInfo() string {
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return fmt.Sprintf("offset:%v, count:%v", p.Offset, p.Count)
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}
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// ExplainInfo implements PhysicalPlan interface.
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func (p *basePhysicalAgg) ExplainInfo() string {
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buffer := bytes.NewBufferString("")
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if len(p.GroupByItems) > 0 {
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buffer.WriteString(fmt.Sprintf("group by:%s",
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expression.ExplainExpressionList(p.GroupByItems)))
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}
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buffer.WriteString(", funcs:")
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for i, agg := range p.AggFuncs {
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buffer.WriteString(aggregation.ExplainAggFunc(agg))
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if i+1 < len(p.AggFuncs) {
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buffer.WriteString(", ")
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}
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}
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return buffer.String()
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}
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// ExplainInfo implements PhysicalPlan interface.
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func (p *PhysicalApply) ExplainInfo() string {
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buffer := bytes.NewBufferString(p.PhysicalJoin.ExplainInfo())
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buffer.WriteString(fmt.Sprintf(", right:%s", p.Children()[1].ExplainID()))
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return buffer.String()
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}
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// ExplainInfo implements PhysicalPlan interface.
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func (p *PhysicalIndexJoin) ExplainInfo() string {
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buffer := bytes.NewBufferString(fmt.Sprintf("outer:%s",
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p.Children()[p.OuterIndex].ExplainID()))
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buffer.WriteString(fmt.Sprintf(", %s", p.JoinType))
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if len(p.OuterJoinKeys) > 0 {
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buffer.WriteString(fmt.Sprintf(", outer key:%s",
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expression.ExplainColumnList(p.OuterJoinKeys)))
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}
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if len(p.InnerJoinKeys) > 0 {
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buffer.WriteString(fmt.Sprintf(", inner key:%s",
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expression.ExplainColumnList(p.InnerJoinKeys)))
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}
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if len(p.LeftConditions) > 0 {
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buffer.WriteString(fmt.Sprintf(", left cond:%s",
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expression.ExplainExpressionList(p.LeftConditions)))
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}
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if len(p.RightConditions) > 0 {
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buffer.WriteString(fmt.Sprintf(", right cond:%s",
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expression.ExplainExpressionList(p.RightConditions)))
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}
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if len(p.OtherConditions) > 0 {
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buffer.WriteString(fmt.Sprintf(", other cond:%s",
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expression.ExplainExpressionList(p.OtherConditions)))
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}
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return buffer.String()
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}
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// ExplainInfo implements PhysicalPlan interface.
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func (p *PhysicalHashJoin) ExplainInfo() string {
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buffer := bytes.NewBufferString(p.JoinType.String())
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buffer.WriteString(fmt.Sprintf(", small:%s", p.Children()[p.SmallChildIdx].ExplainID()))
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if len(p.EqualConditions) > 0 {
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buffer.WriteString(fmt.Sprintf(", equal:%s", p.EqualConditions))
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}
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if len(p.LeftConditions) > 0 {
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buffer.WriteString(fmt.Sprintf(", left cond:%s", p.LeftConditions))
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}
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if len(p.RightConditions) > 0 {
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buffer.WriteString(fmt.Sprintf(", right cond:%s",
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expression.ExplainExpressionList(p.RightConditions)))
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}
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if len(p.OtherConditions) > 0 {
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buffer.WriteString(fmt.Sprintf(", other cond:%s",
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expression.ExplainExpressionList(p.OtherConditions)))
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}
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return buffer.String()
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}
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// ExplainInfo implements PhysicalPlan interface.
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func (p *PhysicalMergeJoin) ExplainInfo() string {
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buffer := bytes.NewBufferString(p.JoinType.String())
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if len(p.EqualConditions) > 0 {
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buffer.WriteString(fmt.Sprintf(", equal:%s", p.EqualConditions))
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}
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if len(p.LeftConditions) > 0 {
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buffer.WriteString(fmt.Sprintf(", left cond:%s", p.LeftConditions))
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}
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if len(p.RightConditions) > 0 {
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buffer.WriteString(fmt.Sprintf(", right cond:%s",
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expression.ExplainExpressionList(p.RightConditions)))
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}
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if len(p.OtherConditions) > 0 {
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buffer.WriteString(fmt.Sprintf(", other cond:%s",
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expression.ExplainExpressionList(p.OtherConditions)))
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}
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if len(p.leftKeys) > 0 {
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buffer.WriteString(fmt.Sprintf(", left key:%s",
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expression.ExplainColumnList(p.leftKeys)))
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}
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if len(p.rightKeys) > 0 {
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buffer.WriteString(fmt.Sprintf(", right key:%s",
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expression.ExplainColumnList(p.rightKeys)))
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}
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return buffer.String()
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}
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// ExplainInfo implements PhysicalPlan interface.
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func (p *PhysicalTopN) ExplainInfo() string {
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buffer := bytes.NewBufferString("")
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for i, item := range p.ByItems {
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order := "asc"
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if item.Desc {
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order = "desc"
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}
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buffer.WriteString(fmt.Sprintf("%s:%s", item.Expr.ExplainInfo(), order))
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if i+1 < len(p.ByItems) {
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buffer.WriteString(", ")
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}
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}
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buffer.WriteString(fmt.Sprintf(", offset:%v, count:%v", p.Offset, p.Count))
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return buffer.String()
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}
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