MaxSessions to 20. 2. Restart the sshd service: service sshd restart 6. Create and start the cluster: Edit the configuration file according to the following template, and name it as topo. �→ yaml: # # Global Find(&testPlayer, "id = ?", "test") fmt.Printf("getPlayer: %+v\n", testPlayer) // Create players with bulk inserts. Insert 1919 players totally, with �→ 114 players per batch. bulkInsertPlayers := make([]Player instance db, err := sql.Open �→ ("mysql", dsn) to connect to TiDB. Then, you can use dao.go to read, edit, add, and delete data. package main import ( "database/sql" "fmt" _ "github.com/go-sql-driver/mysql"

Optimize the execution performance of DML statements when the system variable tidb_dml_type is set to "bulk" #50215 @ekexium • Support using Optimizer Fix Control 47400 to control whether the optimizer limits Automatically terminating long-running idle transactions Y Y Y Y N N N N N N N N Bulk DML execution mode (tidb_dml_type = "bulk") E E E N N N N N N N N 2.3.7 Partitioning Partitioning 8.4 8.3 8.2 8.1 7.5 MaxSessions to 20. 2. Restart the sshd service: service sshd restart 6. Create and start the cluster: Edit the configuration file according to the following template, and name it as topo. �→ yaml: 127 #

Optimize the execution performance of DML statements when the system variable tidb_dml_type is set to "bulk" #50215 @ekexium • Support using Optimizer Fix Control 47400 to control whether the optimizer limits Automatically terminating long-running idle transactions Y Y Y Y N N N N N N N N Bulk DML execution mode (tidb_dml_type = "bulk") E E E N N N N N N N N 2.3.7 Partitioning Partitioning 8.4 8.3 8.2 8.1 7.5 MaxSessions to 20. 2. Restart the sshd service: service sshd restart 6. Create and start the cluster: Edit the configuration file according to the following template, and name it as topo. �→ yaml: # # Global

@zyguan TiDB fetches data by sending KV requests to TiKV. Batching and processing KV requests in bulk can significantly improve execution performance. Before v8.3.0, the batching strategy in TiDB is less using tidb_gc_ �→ concurrency #54570 @ekexium • Improve the performance of bulk DML execution mode (tidb_dml_type = "bulk �→ ") #50215 @ekexium • Improve the performance of schema information cache-related Automatically terminating long-running idle transactions Y Y Y N N N N N N N N Bulk DML execution mode (tidb_dml_type = "bulk") E E E N N N N N N N N 2.3.7 Partitioning Partitioning 8.3 8.2 8.1 7.5 7.1

Bulk DML for much larger transactions ( �→ experimental, introduced in v8.0.0) Large batch significant amount of memory and have �→ previously been limited at very large scales. Bulk DML (tidb_ �→ dml_type = "bulk") is a new DML type for handling large batch �→ DML tasks more efficiently Automatically terminating long-running idle transactions Y N N N N N N N N Bulk DML execution mode (tidb_dml_type = "bulk") E N N N N N N N N 4Starting from v6.4.0, TiDB supports high-performance and

Automatically terminating long-running idle transactions Y Y N N N N N N N N Bulk DML execution mode (tidb_dml_type = "bulk") E E N N N N N N N N 2.3.7 Partitioning Partitioning 8.2 8.1 7.5 7.1 6.5 6 MaxSessions to 20. 2. Restart the sshd service: service sshd restart 6. Create and start the cluster: Edit the configuration file according to the following template, and name it as topo. �→ yaml: 97 # # to run it, check out the tidb-samples/tidb-java- mybatis-quickstart repository. Connect to TiDB Edit the MyBatis configuration file mybatis-config.xml:

Bulk DML for much larger transactions ( �→ experimental, introduced in v8.0.0) Large batch significant amount of memory and have �→ previously been limited at very large scales. Bulk DML (tidb_ �→ dml_type = "bulk") is a new DML type for handling large batch �→ DML tasks more efficiently MaxSessions to 20. 2. Restart the sshd service: service sshd restart 6. Create and start the cluster: Edit the configuration file according to the following template, and name it as topo. �→ yaml: # # Global

Bulk DML for much larger transactions (experimental �→ ) Large batch DML jobs, such as extensive significant amount of memory and have �→ previously been limited at very large scales. Bulk DML (tidb_ �→ dml_type = "bulk") is a new DML type for handling large batch �→ DML tasks more efficiently added Controls the ex- ecution mode of DML state- ments. The value options are " �→ standard �→ " and "bulk" �→ . 55 Variable name Change type Description tidb_ �→ enable �→ _ �→ auto �→ _ �→ analyze �→

MaxSessions to 20. 2. Restart the sshd service: service sshd restart 6. Create and start the cluster: Edit the configuration file according to the following template, and name it as topo. �→ yaml: # # Global to run it, check out the tidb-samples/tidb-java- mybatis-quickstart repository. Connect to TiDB Edit the MyBatis configuration file mybatis-config.xml: Edit the Hibernate configuration file hibernate.cfg.xml: 154 <

MaxSessions to 20. 2. Restart the sshd service: service sshd restart 6. Create and start the cluster: Edit the configuration file according to the following template, and name it as topo. �→ yaml: # # Global to run it, check out the tidb-samples/tidb-java- mybatis-quickstart repository. Connect to TiDB Edit the MyBatis configuration file mybatis-config.xml: 141 < to run it, check out the tidb-samples/tidb-java- hibernate-quickstart repository. Connect to TiDB Edit the Hibernate configuration file hibernate.cfg.xml: