tidb tableutil 源码
tidb tableutil 代码
文件路径：/util/tableutil/tableutil.go
// Copyright 2021 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 tableutil
import (
"github.com/pingcap/tidb/meta/autoid"
"github.com/pingcap/tidb/parser/model"
)
// TempTable is used to store transaction-specific or session-specific information for global / local temporary tables.
// For example, stats and autoID should have their own copies of data, instead of being shared by all sessions.
type TempTable interface {
// GetAutoIDAllocator gets the autoID allocator of this table.
GetAutoIDAllocator() autoid.Allocator
// SetModified sets that the table is modified.
SetModified(bool)
// GetModified queries whether the table is modified.
GetModified() bool
// The stats of this table (*statistics.Table).
// Define the return type as interface{} here to avoid cycle imports.
GetStats() interface{}
GetSize() int64
SetSize(int64)
GetMeta() *model.TableInfo
}
// TempTableFromMeta builds a TempTable from *model.TableInfo.
// Currently, it is assigned to tables.TempTableFromMeta in tidb package's init function.
var TempTableFromMeta func(tblInfo *model.TableInfo) TempTable
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