Patent ID: 11874835
Assignee: SAP SE
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 18:
19. A medium according to claim 18, wherein determination of the execution order comprises:
determination of a first execution order based on the longest pipeline path to which each of the plurality of query execution pipelines belongs;
determination of a plurality of execution orders of the plurality of query execution pipelines based on the one or more precedence relationships;
determination of a memory cost of the first execution order based on the memory size and lifetime of intermediate results of each pipeline determined for the first execution order;
determination of a memory cost of each of the plurality of execution orders based on the memory size and lifetime of intermediate results of each pipeline determined for each of the plurality of execution orders, wherein determination of a memory cost of one of the plurality of execution orders terminates if the memory cost of the one of the plurality of execution orders will exceed the memory cost of the first execution order; and
determination of the execution order from the plurality of execution orders based on the memory cost determined for each of the plurality of execution orders.