executor: reset the related session vars for both INSERT and REPLACE

executor/executor.go

@@ -2186,6 +2186,8 @@ func ResetContextOfStmt(ctx sessionctx.Context, s ast.StmtNode) (err error) {
 	vars.PrevFoundInBinding = vars.FoundInBinding
 	vars.FoundInBinding = false
 	vars.DurationWaitTS = 0
+	vars.CurrInsertBatchExtraCols = nil
+	vars.CurrInsertValues = chunk.Row{}
 	return
 }
 

executor/insert.go

@@ -345,8 +345,6 @@ func (e *InsertExec) Close() error {
 		defer e.ctx.GetSessionVars().StmtCtx.RuntimeStatsColl.RegisterStats(e.id, e.stats)
 	}
 	defer e.memTracker.ReplaceBytesUsed(0)
-	e.ctx.GetSessionVars().CurrInsertValues = chunk.Row{}
-	e.ctx.GetSessionVars().CurrInsertBatchExtraCols = e.ctx.GetSessionVars().CurrInsertBatchExtraCols[0:0:0]
 	e.setMessage()
 	if e.SelectExec != nil {
 		return e.SelectExec.Close()

executor/writetest/write_test.go

@@ -4318,3 +4318,15 @@ func TestIssueInsertPrefixIndexForNonUTF8Collation(t *testing.T) {
 	tk.MustExec("insert into t3 select 'abc '")
 	tk.MustGetErrCode("insert into t3 select 'abc d'", 1062)
 }
+
+func TestMutipleReplaceAndInsertInOneSession(t *testing.T) {
+	store := testkit.CreateMockStore(t)
+	tk := testkit.NewTestKit(t, store)
+	tk.MustExec("use test")
+	tk.MustExec("create table t_securities(id bigint not null auto_increment primary key, security_id varchar(8), market_id smallint, security_type int, unique key uu(security_id, market_id))")
+	tk.MustExec(`insert into t_securities (security_id, market_id, security_type) values ("1", 2, 7), ("7", 1, 7) ON DUPLICATE KEY UPDATE security_type = VALUES(security_type)`)
+	tk.MustExec(`replace into t_securities (security_id, market_id, security_type) select security_id+1, 1, security_type from t_securities  where security_id="7";`)
+	tk.MustExec(`INSERT INTO t_securities (security_id, market_id, security_type) values ("1", 2, 7), ("7", 1, 7) ON DUPLICATE KEY UPDATE security_type = VALUES(security_type)`)
+
+	tk.MustQuery("select * from t_securities").Sort().Check(testkit.Rows("1 1 2 7", "2 7 1 7", "3 8 1 7"))
+}