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store/tikv: move transaction options out to /kv #24619
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Original file line number | Diff line number | Diff line change |
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// Copyright 2021 PingCAP, Inc. | ||
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||
// 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, | ||
// See the License for the specific language governing permissions and | ||
// limitations under the License. | ||
|
||
package kv | ||
|
||
// Transaction options | ||
const ( | ||
// BinlogInfo contains the binlog data and client. | ||
BinlogInfo int = iota + 1 | ||
// SchemaChecker is used for checking schema-validity. | ||
SchemaChecker | ||
// IsolationLevel sets isolation level for current transaction. The default level is SI. | ||
IsolationLevel | ||
// Priority marks the priority of this transaction. | ||
Priority | ||
// NotFillCache makes this request do not touch the LRU cache of the underlying storage. | ||
NotFillCache | ||
// SyncLog decides whether the WAL(write-ahead log) of this request should be synchronized. | ||
SyncLog | ||
// KeyOnly retrieve only keys, it can be used in scan now. | ||
KeyOnly | ||
// Pessimistic is defined for pessimistic lock | ||
Pessimistic | ||
// SnapshotTS is defined to set snapshot ts. | ||
SnapshotTS | ||
// Set replica read | ||
ReplicaRead | ||
// Set task ID | ||
TaskID | ||
// InfoSchema is schema version used by txn startTS. | ||
InfoSchema | ||
// CollectRuntimeStats is used to enable collect runtime stats. | ||
CollectRuntimeStats | ||
// SchemaAmender is used to amend mutations for pessimistic transactions | ||
SchemaAmender | ||
// SampleStep skips 'SampleStep - 1' number of keys after each returned key. | ||
SampleStep | ||
// CommitHook is a callback function called right after the transaction gets committed | ||
CommitHook | ||
// EnableAsyncCommit indicates whether async commit is enabled | ||
EnableAsyncCommit | ||
// Enable1PC indicates whether one-phase commit is enabled | ||
Enable1PC | ||
// GuaranteeLinearizability indicates whether to guarantee linearizability at the cost of an extra tso request before prewrite | ||
GuaranteeLinearizability | ||
// TxnScope indicates which @@txn_scope this transaction will work with. | ||
TxnScope | ||
// StalenessReadOnly indicates whether the transaction is staleness read only transaction | ||
IsStalenessReadOnly | ||
// MatchStoreLabels indicates the labels the store should be matched | ||
MatchStoreLabels | ||
) |
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I think
KeyOnly
is already unused.There was a problem hiding this comment.
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I mean this variable.