| 摘要 |
Queries that are determined to be too expensive to perform are prevented from being executed. Queries are determined to be too expensive based on the resources that are required to perform the query. For example, the query may be determined to be too expensive to perform based a length of a list the query requires to access, a number of lookups that may be performed relating to the query, a number of unique permissions accessed by the query, and the like. Queries that are deemed to expensive during normal operation may be performed during other times such that the impact of performing the query on other users is limited. |
