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*: parse the data source directly into data and skip the KV encoder
This skips the more complex pingcap/parser, and speeds up parsing speed by 50%.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,225 @@ | ||
| // Copyright 2019 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, | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package kv | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
|
|
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| "github.com/pingcap/parser/mysql" | ||
| "github.com/pingcap/tidb/kv" | ||
| "github.com/pingcap/tidb/owner" | ||
| "github.com/pingcap/tidb/sessionctx/variable" | ||
| "github.com/pingcap/tidb/types" | ||
| "github.com/pingcap/tidb/util" | ||
| "github.com/pingcap/tidb/util/kvcache" | ||
| kvec "github.com/pingcap/tidb/util/kvencoder" | ||
| binlog "github.com/pingcap/tipb/go-binlog" | ||
| ) | ||
|
|
||
| // transaction is a trimmed down Transaction type which only supports adding a | ||
| // new KV pair. | ||
| type transaction struct { | ||
| kvPairs []kvec.KvPair | ||
| } | ||
|
|
||
| func (t *transaction) Get(k kv.Key) ([]byte, error) { | ||
| panic("unexpected Get() call") | ||
| } | ||
|
|
||
| func (t *transaction) Iter(k kv.Key, upperBound kv.Key) (kv.Iterator, error) { | ||
| panic("unexpected Iter() call") | ||
| } | ||
|
|
||
| func (t *transaction) IterReverse(k kv.Key) (kv.Iterator, error) { | ||
| panic("unexpected IterReverse() call") | ||
| } | ||
|
|
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| func (t *transaction) Set(k kv.Key, v []byte) error { | ||
| t.kvPairs = append(t.kvPairs, kvec.KvPair{ | ||
| Key: k.Clone(), | ||
| Val: append([]byte{}, v...), | ||
| }) | ||
| return nil | ||
| } | ||
|
|
||
| func (t *transaction) Delete(k kv.Key) error { | ||
| panic("unexpected Delete() call") | ||
| } | ||
|
|
||
| func (t *transaction) Size() int { | ||
| panic("unexpected Size() call") | ||
| } | ||
|
|
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| func (t *transaction) Len() int { | ||
| panic("unexpected Len() call") | ||
| } | ||
|
|
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| func (t *transaction) Reset() { | ||
| panic("unexpected Reset() call") | ||
| } | ||
|
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| func (t *transaction) SetCap(cap int) { | ||
| panic("unexpected SetCap() call") | ||
| } | ||
|
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| func (t *transaction) Commit(context.Context) error { | ||
| panic("unexpected Commit() call") | ||
| } | ||
|
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| func (t *transaction) Rollback() error { | ||
| panic("unexpected Rollback() call") | ||
| } | ||
|
|
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| func (t *transaction) String() string { | ||
| panic("unexpected String() call") | ||
| } | ||
|
|
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| func (t *transaction) LockKeys(keys ...kv.Key) error { | ||
| panic("unexpected LockKeys() call") | ||
| } | ||
|
|
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| func (t *transaction) SetOption(opt kv.Option, val interface{}) {} | ||
|
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| func (t *transaction) DelOption(kv.Option) {} | ||
|
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| func (t *transaction) IsReadOnly() bool { | ||
| panic("unexpected IsReadOnly() call") | ||
| } | ||
|
|
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| func (t *transaction) StartTS() uint64 { | ||
| panic("unexpected StartTS() call") | ||
| } | ||
|
|
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| func (t *transaction) Valid() bool { | ||
| panic("unexpected Valid() call") | ||
| } | ||
|
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| func (t *transaction) GetMemBuffer() kv.MemBuffer { | ||
| panic("unexpected GetMemBuffer() call") | ||
| } | ||
|
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| func (t *transaction) SetVars(vars *kv.Variables) { | ||
| panic("unexpected SetVars() call") | ||
| } | ||
|
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| func (t *transaction) BatchGet(keys []kv.Key) (map[string][]byte, error) { | ||
| panic("unexpected BatchGet() call") | ||
| } | ||
|
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| func (t *transaction) GetSnapshot() kv.Snapshot { | ||
| panic("unexpected GetSnapshot() call") | ||
| } | ||
|
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| //------------------------------------------------------------------------------ | ||
|
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| // transaction is a trimmed down Transaction type which only supports adding a | ||
| // new KV pair. | ||
| type session struct { | ||
| txn transaction | ||
| vars *variable.SessionVars | ||
| } | ||
|
|
||
| func newSession(sqlMode mysql.SQLMode) *session { | ||
| vars := variable.NewSessionVars() | ||
| vars.LightningMode = true | ||
| vars.SkipUTF8Check = true | ||
| vars.StmtCtx.InInsertStmt = true | ||
| vars.StmtCtx.BadNullAsWarning = !sqlMode.HasStrictMode() | ||
| vars.StmtCtx.TruncateAsWarning = !sqlMode.HasStrictMode() | ||
| vars.StmtCtx.IgnoreZeroInDate = !sqlMode.HasStrictMode() | ||
| vars.StmtCtx.TimeZone = vars.Location() | ||
| return &session{ | ||
| txn: transaction{}, | ||
| vars: vars, | ||
| } | ||
| } | ||
|
|
||
| func (se *session) takeKvPairs() []kvec.KvPair { | ||
| pairs := se.txn.kvPairs | ||
| se.txn.kvPairs = make([]kvec.KvPair, 0, len(pairs)) | ||
| return pairs | ||
| } | ||
|
|
||
| func (se *session) NewTxn() error { | ||
| panic("unexpected NewTxn() call") | ||
| } | ||
|
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| func (se *session) Txn(active bool) (kv.Transaction, error) { | ||
| return &se.txn, nil | ||
| } | ||
|
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| func (se *session) GetClient() kv.Client { | ||
| panic("unexpected GetClient() call") | ||
| } | ||
|
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| func (se *session) SetValue(key fmt.Stringer, value interface{}) { | ||
| panic("unexpected SetValue() call") | ||
| } | ||
|
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| func (se *session) Value(key fmt.Stringer) interface{} { | ||
| panic("unexpected Value() call") | ||
| } | ||
|
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| func (se *session) ClearValue(key fmt.Stringer) { | ||
| panic("unexpected ClearValue() call") | ||
| } | ||
|
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| func (se *session) GetSessionVars() *variable.SessionVars { | ||
| return se.vars | ||
| } | ||
|
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| func (se *session) GetSessionManager() util.SessionManager { | ||
| panic("unexpected GetSessionManager() call") | ||
| } | ||
|
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| func (se *session) RefreshTxnCtx(context.Context) error { | ||
| panic("unexpected RefreshTxnCtx() call") | ||
| } | ||
|
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| func (se *session) InitTxnWithStartTS(startTS uint64) error { | ||
| panic("unexpected InitTxnWithStartTS() call") | ||
| } | ||
|
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| func (se *session) GetStore() kv.Storage { | ||
| panic("unexpected GetStore() call") | ||
| } | ||
|
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| func (se *session) PreparedPlanCache() *kvcache.SimpleLRUCache { | ||
| panic("unexpected PreparedPlanCache() call") | ||
| } | ||
|
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| func (se *session) StoreQueryFeedback(feedback interface{}) { | ||
| panic("unexpected StoreQueryFeedback() call") | ||
| } | ||
|
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| func (se *session) StmtCommit() error { | ||
| panic("unexpected StmtCommit() call") | ||
| } | ||
|
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| func (se *session) StmtRollback() { | ||
| panic("unexpected StmtRollback() call") | ||
| } | ||
|
|
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| func (se *session) StmtGetMutation(int64) *binlog.TableMutation { | ||
| panic("unexpected StmtGetMutation() call") | ||
| } | ||
|
|
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| func (se *session) StmtAddDirtyTableOP(op int, physicalID int64, handle int64, row []types.Datum) { | ||
| panic("unexpected StmtAddDirtyTableOP() call") | ||
| } | ||
|
|
||
| func (se *session) DDLOwnerChecker() owner.DDLOwnerChecker { | ||
| panic("unexpected DDLOwnerChecker() call") | ||
| } |
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