Lemon Inc.

Beijing Volcano Engine Technology Co., Ltd.

Douyin Vision Co., Ltd.

Yuanjin Lin

Wei Ding

Rui Shi

Jianjun Chen

Jianfeng Qian

This disclosure provides a query task execution method, apparatus, computer device, storage medium. The method includes: receiving a query task for a target data table; determining at least one candidate degree of parallelism for executing the query task based on a first number of child tables obtained by pre-partitioning the target data table; selecting a target degree of parallelism within a preset range of degrees of parallelism from the at least one candidate degree of parallelism; and determining required computing units according to the target degree of parallelism, and evenly allocating the child tables to the computing units which concurrently execute the query task based on the allocated child tables.

Query task execution method, apparatus, computer device and storage medium

The present disclosure relates to a database-based data processing method, device, medium and electronic apparatus, the method including: receiving a query request task to be executed, and determining a plurality of coroutine tasks corresponding to the query request task; in each thread, determining a target coroutine task to be executed according to time information of each coroutine task in the local task queue of the thread; interrupting the target coroutine task and adding the target coroutine task to the global task queue when execution of the target coroutine task is not completed and the target coroutine task has been executed in the thread for a current time slice; according to the global task queue, and the local task queue of the thread, determining a new target coroutine task for the thread, and executing the new target coroutine task in a next time slice.

Database-based data processing method, device, medium and electronic apparatus

Growing community of inventors

Beijing, China

Yuanjin Lin