FLWR expression FLWR表达式
The most powerful new feature in XQuery is the FLWR expression.
XQuery中最强大的新特性是FLWR表达式。
Each FLWR expression has one or more for clause, one or more let clause, an optional where clause, and a return clause.
每个FLWR表达式都有一个或多个for子句、一个或多个let子句、一个可选的where子句以及一个return子句。
Query decomposition focused mainly on the FLWR expressions.
查询分解主要侧重于FLWR表达式。
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