sessionctx/variable: fix field(History) typo in TransactionContext (

pingcap#8600)

executor/simple.go

@@ -121,7 +121,7 @@ func (e *SimpleExec) executeBegin(ctx context.Context, s *ast.BeginStmt) error {
 	// If BEGIN is the first statement in TxnCtx, we can reuse the existing transaction, without the
 	// need to call NewTxn, which commits the existing transaction and begins a new one.
 	txnCtx := e.ctx.GetSessionVars().TxnCtx
-	if txnCtx.Histroy != nil {
+	if txnCtx.History != nil {
 		err := e.ctx.NewTxn(ctx)
 		if err != nil {
 			return errors.Trace(err)

session/tidb.go

@@ -202,12 +202,12 @@ func runStmt(ctx context.Context, sctx sessionctx.Context, s sqlexec.Statement)
 
 // GetHistory get all stmtHistory in current txn. Exported only for test.
 func GetHistory(ctx sessionctx.Context) *StmtHistory {
-	hist, ok := ctx.GetSessionVars().TxnCtx.Histroy.(*StmtHistory)
+	hist, ok := ctx.GetSessionVars().TxnCtx.History.(*StmtHistory)
 	if ok {
 		return hist
 	}
 	hist = new(StmtHistory)
-	ctx.GetSessionVars().TxnCtx.Histroy = hist
+	ctx.GetSessionVars().TxnCtx.History = hist
 	return hist
 }
 

sessionctx/variable/session.go

@@ -101,7 +101,7 @@ type TransactionContext struct {
 	DirtyDB       interface{}
 	Binlog        interface{}
 	InfoSchema    interface{}
-	Histroy       interface{}
+	History       interface{}
 	SchemaVersion int64
 	StartTS       uint64
 	Shard         *int64
@@ -134,7 +134,7 @@ func (tc *TransactionContext) Cleanup() {
 	//tc.InfoSchema = nil; we cannot do it now, because some operation like handleFieldList depend on this.
 	tc.DirtyDB = nil
 	tc.Binlog = nil
-	tc.Histroy = nil
+	tc.History = nil
 	tc.TableDeltaMap = nil
 }