在存在记录内引用约束的情况下查询树结构记录的集合
Querying collections of tree-structured records in the presence of within-record referential constraints
摘要：
在本文中，我们考虑了一个树结构的数据模型，用于许多商业数据库，如Dremel，F1，JSON商店。我们在每个树形结构的记录中定义身份和引用约束。查询语言是SQL的一个变体，扁平化被用作一种评估机制。我们调查查询中存在这些约束，并指出在查询评估过程中考虑到它们所带来的挑战。
英文摘要：
In this paper, we consider a tree-structured data model used in many commercial databases like Dremel, F1, JSON stores. We define identity and referential constraints within each tree-structured record. The query language is a variant of SQL and flattening is used as an evaluation mechanism. We investigate querying in the presence of these constraints, and point out the challenges that arise from taking them into account during query evaluation.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
