. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Release Plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 Plan IDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . execute a query. This evaluation is known as query planning, and results in a query execution plan. The Execution Plan is dependent on both the query and the associated VSchema. One of the underlying goals of

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Release Plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 Plan IDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . execute a query. This evaluation is known as query planning, and results in a query execution plan. The Execution Plan is dependent on both the query and the associated VSchema. One of the underlying goals of

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Release Plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 Plan IDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . execute a query. This evaluation is known as query planning, and results in a query execution plan. The Execution Plan is dependent on both the query and the associated VSchema. One of the underlying goals of

execute a query. This evaluation is known as query planning, and results in a query execution plan. The Execution Plan is dependent on both the query and the associated VSchema. One of the underlying goals of not possible, Vitess will use a plan that collects input from multiple sources and merges the results to produce the correct query result. Evaluation Model An execution plan consists of operators, each of work. The operators combine into a tree-like structure, which represents the overall execution plan. The plan represents each operator as a node in the tree. Each operator takes as input zero or more rows

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 Release Plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92 Plan IDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . execute a query. This evaluation is known as query planning, and results in a query execution plan. The Execution Plan is dependent on both the query and the associated VSchema. One of the underlying goals of

execute a query. This evaluation is known as query planning, and results in a query execution plan. The Execution Plan is dependent on both the query and the associated VSchema. One of the underlying goals of not possible, Vitess will use a plan that collects input from multiple sources and merges the results to produce the correct query result. Evaluation Model An execution plan consists of operators, each of work. The operators combine into a tree-like structure, which represents the overall execution plan. The plan represents each operator as a node in the tree. Each operator takes as input zero or more rows

you can specify that two tables are ‘equivalent’. This will allow VTGate to use the best possible plan depending on the input query. 49 ApplyRoutingRules You can use the vtctlclient command to apply can discard it. However, you can record the DMLs that were involved and have someone come up with a plan to repair the partial commit. • Prepared Transactions: Prepared transactions can be rolled back or no additional benefits. • queryserver-config-stream-pool-size: This value is relevant only if you plan to run streaming queries against the database. It’s recommended that you use rdonly instances for

you can specify that two tables are ‘equivalent’. This will allow VTGate to use the best possible plan depending on the input query. ApplyRoutingRules You can use the vtctlclient command to apply routing can discard it. However, you can record the DMLs that were involved and have someone come up with a plan to repair the partial commit. • Prepared Transactions: Prepared transactions can be rolled back or no additional benefits. • queryserver-config-stream-pool-size: This value is relevant only if you plan to run streaming queries against the database. It’s recommended that you use rdonly instances for

"Start": "", "End": "" } } Vtgate – Structure Vtgate – SQL Example Vtgate – SQL Example Plan SQL语句 备注 SelectUnshar ded select * from main1 
 SelectScatte r select * from user 
 SelectScatte 1 from dual) from user where id in (1, 2) 
 UpdateEqual update user set val = 1 where id = 1 
 Plan SQL语句 原因 NoPlan select * from user union select * from user union NoPlan set a=1 set NoPlan create