tidb scanner 源码
tidb scanner 代码
文件路径：/store/driver/txn/scanner.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 txn
import (
"github.com/pingcap/tidb/kv"
"github.com/tikv/client-go/v2/txnkv/txnsnapshot"
)
type tikvScanner struct {
*txnsnapshot.Scanner
}
// Next returns the next element.
func (s *tikvScanner) Next() error {
err := s.Scanner.Next()
return extractKeyErr(err)
}
func (s *tikvScanner) Key() kv.Key {
return kv.Key(s.Scanner.Key())
}
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