with --filter or -f. Usage example: The following command backs up the data of all tables in the form db*.tbl* to the /tmp/backup path on each TiKV node and writes the backupmeta file to this path. br cases, you need to disable credentials sending with --send �→ -credentials-to-tikv=false (or the short form -c=0): ./br backup full -c=0 -u pd-service:2379 -s 's3://bucket-name/prefix' When using SQL statements gion schedule �→ . �→ split �→ - �→ merge �→ - �→ interval �→ Determines the time inter- val of per- form- ing split and merge oper- a- tions on the same Re- gion 337 Configuration item Description schedule

SQL digest. – Add the TIDB_DECODE_SQL_DIGESTS function to query the normalized SQL state- ments (a form without formats and arguments) corresponding to a set of SQL digests in the cluster. This simplifies with --filter or -f. Usage example: The following command backs up the data of all tables in the form db*.tbl* to the /tmp/backup path on each TiKV node and writes the backupmeta file to this path. br cases, you need to disable credentials sending with --send �→ -credentials-to-tikv=false (or the short form -c=0): ./br backup full -c=0 -u pd-service:2379 -s 's3://bucket-name/prefix' When using SQL statements

need to pay attention to the following restrictions: – Index Merge supports only disjunctive normal form (X1 ￿ X2 ￿ …Xn). That is, this feature only works when filtering conditions in a WHERE clause are --filter or -f. Usage example: 317 The following command backs up the data of all tables in the form db*.tbl* to the /tmp/backup path on each TiKV node and writes the backupmeta file to this path. br cases, you need to disable credentials sending with --send �→ -credentials-to-tikv=false (or the short form -c=0): ./br backup full -c=0 -u pd-service:2379 -s 's3://bucket-name/prefix' When using SQL statements

--filter or -f. Usage example: 209 The following command backs up the data of all tables in the form db*.tbl* to the /tmp/backup path on each TiKV node and writes the backupmeta file to this path. br cases, you need to disable credentials sending with --send �→ -credentials-to-tikv=false (or the short form -c=0): ./br backup full -c=0 -u pd-service:2379 -s 's3://bucket-name/prefix' When using SQL statements schedule �→ . �→ split �→ - �→ merge �→ - �→ interval �→ Determines the time inter- val of per- form- ing split and merge oper- a- tions on the same Re- gion schedule �→ . �→ max �→ - �→ snapshot �→

'Content-Type: application/x-www-form-urlencoded' \ --data-urlencode 'sellID=1' \ --data-urlencode 'buyID=2' \ --data-urlencode 'amount=10' \ --data-urlencode 'price=100' The request uses Form Data as the payload `sequence` feature to create a generator, * and it named "player_jpa_id_seq" in database, initial form 1 (by �→ `initialValue` 183 * parameter default), and every operator will increase 1 (by ` �→ responds to a PUT request in HTTP. • @RequestParam declares that this function parses URL parameters, form parameters, and other parameters in the request and binds them to the annotated variables. 192 4

4.4.2.2 MySQL JDBC parameters JDBC usually provides implementation-related configurations in the form of JDBC URL parameters. This section introduces MySQL Connector/J’s parameter configurations (If you the database. It is used to store the data sent from SQL statements. Tables save data records in the form of rows and columns. A table has at least one column. If you have defined n columns, each row of data or organization’s table naming convention. The CREATE TABLE statement usually takes the following form: 345 CREATE TABLE {table_name} ( {elements} ); Parameter description • {table_name}: The name

Description validate_password �→ . �→ enable �→ Newly added This vari- able con- trols whether to per- form pass- word com- plexity check. If this vari- able is set to ON, TiDB per- forms the pass- word com- 4.4.2.2 MySQL JDBC parameters JDBC usually provides implementation-related configurations in the form of JDBC URL parameters. This section introduces MySQL Connector/J’s parameter configurations (If you the database. It is used to store the data sent from SQL statements. Tables save data records in the form of rows and columns. A table has at least one column. If you have defined n columns, each row of data

4.4.2.2 MySQL JDBC parameters JDBC usually provides implementation-related configurations in the form of JDBC URL parameters. This section introduces MySQL Connector/J’s parameter configurations (If you the database. It is used to store the data sent from SQL statements. Tables save data records in the form of rows and columns. A table has at least one column. If you have defined n columns, each row of data or organization’s table naming convention. The CREATE TABLE statement usually takes the following form: CREATE TABLE {table_name} ( {elements} ); Parameter description • {table_name}: The name of the

Modified Changes the max- imum value from 18446744073709551615 �→ (64-bit plat- form) and 4294967295 �→ (32-bit plat- form) to 1048576 to avoid causing TiDB Server OOM when setting it too large. It means 4.4.2.2 MySQL JDBC parameters JDBC usually provides implementation-related configurations in the form of JDBC URL parameters. This section introduces MySQL Connector/J’s parameter configurations (If you the database. It is used to store the data sent from SQL statements. Tables save data records in the form of rows and columns. A table has at least one column. If you have defined n columns, each row of data

4.4.2.2 MySQL JDBC parameters JDBC usually provides implementation-related configurations in the form of JDBC URL parameters. This section introduces MySQL Connector/J’s parameter configurations (If you the database. It is used to store the data sent from SQL statements. Tables save data records in the form of rows and columns. A table has at least one column. If you have defined n columns, each row of data or organization’s table naming convention. The CREATE TABLE statement usually takes the following form: CREATE TABLE {table_name} ( {elements} ); Parameter description • {table_name}: The name of the