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