tikv/interface:remove kv.Storage from tikv.Storage (#22868)

go.mod

@@ -38,7 +38,7 @@ require (
 	github.com/phayes/freeport v0.0.0-20180830031419-95f893ade6f2
 	github.com/pierrec/lz4 v2.5.2+incompatible // indirect
 	github.com/pingcap/badger v1.5.1-0.20200908111422-2e78ee155d19
-	github.com/pingcap/br v4.0.0-beta.2.0.20210115100158-7a7b4a421c0a+incompatible
+	github.com/pingcap/br v4.0.0-beta.2.0.20210220133344-578be7fb5165+incompatible
 	github.com/pingcap/check v0.0.0-20200212061837-5e12011dc712
 	github.com/pingcap/errors v0.11.5-0.20201126102027-b0a155152ca3
 	github.com/pingcap/failpoint v0.0.0-20200702092429-9f69995143ce

go.sum

@@ -381,8 +381,8 @@ github.com/pierrec/lz4 v2.5.2+incompatible/go.mod h1:pdkljMzZIN41W+lC3N2tnIh5sFi
 github.com/pingcap-incubator/tidb-dashboard v0.0.0-20210104140916-41a0a3a87e75/go.mod h1:EONGys2gM5n14pII2vjmU/5VG3Dtj6kpqUT1GUZ4ysw=
 github.com/pingcap/badger v1.5.1-0.20200908111422-2e78ee155d19 h1:IXpGy7y9HyoShAFmzW2OPF0xCA5EOoSTyZHwsgYk9Ro=
 github.com/pingcap/badger v1.5.1-0.20200908111422-2e78ee155d19/go.mod h1:LyrqUOHZrUDf9oGi1yoz1+qw9ckSIhQb5eMa1acOLNQ=
-github.com/pingcap/br v4.0.0-beta.2.0.20210115100158-7a7b4a421c0a+incompatible h1:idKUWy8no4l5bhnVAhLm4PeiASI411O2XADzpuJmicg=
-github.com/pingcap/br v4.0.0-beta.2.0.20210115100158-7a7b4a421c0a+incompatible/go.mod h1:ymVmo50lQydxib0tmK5hHk4oteB7hZ0IMCArunwy3UQ=
+github.com/pingcap/br v4.0.0-beta.2.0.20210220133344-578be7fb5165+incompatible h1:Zd4LjoIYVmGF9KW484B0F+XvFHlcp9hraI5FAB9h1/I=
+github.com/pingcap/br v4.0.0-beta.2.0.20210220133344-578be7fb5165+incompatible/go.mod h1:ymVmo50lQydxib0tmK5hHk4oteB7hZ0IMCArunwy3UQ=
 github.com/pingcap/check v0.0.0-20190102082844-67f458068fc8/go.mod h1:B1+S9LNcuMyLH/4HMTViQOJevkGiik3wW2AN9zb2fNQ=
 github.com/pingcap/check v0.0.0-20191107115940-caf2b9e6ccf4/go.mod h1:PYMCGwN0JHjoqGr3HrZoD+b8Tgx8bKnArhSq8YVzUMc=
 github.com/pingcap/check v0.0.0-20191216031241-8a5a85928f12/go.mod h1:PYMCGwN0JHjoqGr3HrZoD+b8Tgx8bKnArhSq8YVzUMc=

store/tikv/interface.go

@@ -14,6 +14,7 @@
 package tikv
 
 import (
+	"context"
 	"time"
 
 	"github.com/pingcap/tidb/kv"
@@ -23,8 +24,6 @@ import (
 
 // Storage represent the kv.Storage runs on TiKV.
 type Storage interface {
-	kv.Storage
-
 	// GetRegionCache gets the RegionCache.
 	GetRegionCache() *RegionCache
 
@@ -51,4 +50,38 @@ type Storage interface {
 
 	// Closed returns the closed channel.
 	Closed() <-chan struct{}
+
+	// Begin a global transaction
+	Begin() (kv.Transaction, error)
+	// Begin a transaction with the given txnScope (local or global)
+	BeginWithTxnScope(txnScope string) (kv.Transaction, error)
+	// BeginWithStartTS begins transaction with given txnScope and startTS.
+	BeginWithStartTS(txnScope string, startTS uint64) (kv.Transaction, error)
+	// BeginWithStalenessTS begins transaction with given staleness
+	BeginWithExactStaleness(txnScope string, prevSec uint64) (kv.Transaction, error)
+	// GetSnapshot gets a snapshot that is able to read any data which data is <= ver.
+	// if ver is MaxVersion or > current max committed version, we will use current version for this snapshot.
+	GetSnapshot(ver kv.Version) kv.Snapshot
+	// GetClient gets a client instance.
+	GetClient() kv.Client
+	// GetMPPClient gets a mpp client instance.
+	GetMPPClient() kv.MPPClient
+	// Close store
+	Close() error
+	// UUID return a unique ID which represents a Storage.
+	UUID() string
+	// CurrentVersion returns current max committed version with the given txnScope (local or global).
+	CurrentVersion(txnScope string) (kv.Version, error)
+	// GetOracle gets a timestamp oracle client.
+	GetOracle() oracle.Oracle
+	// SupportDeleteRange gets the storage support delete range or not.
+	SupportDeleteRange() (supported bool)
+	// Name gets the name of the storage engine
+	Name() string
+	// Describe returns of brief introduction of the storage
+	Describe() string
+	// ShowStatus returns the specified status of the storage
+	ShowStatus(ctx context.Context, key string) (interface{}, error)
+	// GetMemCache return memory manager of the storage
+	GetMemCache() kv.MemManager
 }