73 lines
2.2 KiB
Go
73 lines
2.2 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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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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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 core
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import (
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"strconv"
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"strings"
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)
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// ExplainInfo implements Plan interface.
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func (p *PhysicalIndexReader) ExplainInfo() string {
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return "index:" + p.indexPlan.ExplainID().String()
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}
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// ExplainNormalizedInfo implements Plan interface.
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func (p *PhysicalIndexReader) ExplainNormalizedInfo() string {
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return "index:" + p.indexPlan.TP()
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}
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// ExplainInfo implements Plan interface.
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func (p *PhysicalIndexLookUpReader) ExplainInfo() string {
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var str strings.Builder
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// The children can be inferred by the relation symbol.
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if p.PushedLimit != nil {
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str.WriteString("limit embedded(offset:")
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str.WriteString(strconv.FormatUint(p.PushedLimit.Offset, 10))
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str.WriteString(", count:")
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str.WriteString(strconv.FormatUint(p.PushedLimit.Count, 10))
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str.WriteString(")")
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}
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return str.String()
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}
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// ExplainInfo implements Plan interface.
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func (p *PhysicalIndexMergeReader) ExplainInfo() string {
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var str strings.Builder
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if p.IsIntersectionType {
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str.WriteString("type: intersection")
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} else {
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str.WriteString("type: union")
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}
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if p.PushedLimit != nil {
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str.WriteString(", limit embedded(offset:")
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str.WriteString(strconv.FormatUint(p.PushedLimit.Offset, 10))
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str.WriteString(", count:")
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str.WriteString(strconv.FormatUint(p.PushedLimit.Count, 10))
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str.WriteString(")")
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}
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return str.String()
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}
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// ExplainInfo implements Plan interface.
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func (p *PhysicalIndexMergeJoin) ExplainInfo() string {
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return p.PhysicalIndexJoin.ExplainInfoInternal(false, true)
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}
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// ExplainNormalizedInfo implements Plan interface.
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func (p *PhysicalIndexMergeJoin) ExplainNormalizedInfo() string {
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return p.PhysicalIndexJoin.ExplainInfoInternal(true, true)
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}
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