他还描述了源于Solr的新的函数查询功能。
He also described the new Function queries which originated in Solr as.
boost-float：增强函数查询的量。
函数查询——评分受到索引域的的数值取值或次序的函数影响。
Function Query - influence the score by a function of a field's numeric value or ordinal.
refreshItems函数查询现有的记录并用该数据填充HTML页面，如下
The refreshItems function queries the existing records and populates the HTML page with the data, as follows
主要研究基于数据窗口函数查询的多种方法及应用，并设计了基于数据窗口的多关系组合查询方法。
Many methods and their applications are studied in the paper based on DataWindow and multi-relation combination query method is designed based on DataWindow.
正如我前面所提到的，DB 2V8.2.2添加了通过调用简单的表函数查询当前(有效)DB 2注册表变量配置的功能。
As I've previously mentioned, DB2 V8.2.2 adds the ability to query the current (effective) DB2 registry variable configuration through a call to a simple table function.
我将关注Solr的函数查询，因为它们是最容易使用的并且不需要编程。可以在Lucene中轻松地使用它们，或者轻松地将它们移植到Lucene。
I'll focus on Solr's function queries because they are the easiest to use and require no programming to leverage, but they can easily be used in or ported to Lucene.
它提供核心数据模型以及一组非常丰富的用于灵活查询的函数和原语。
It provides a core data model and a very rich set of functions and primitives for flexible query.
此函数先是通过查询这个场所来查证这个场所是否已经被存储在本地。
This function first checks to see if the venue has already been stored locally by querying for it.
解决方案是用一个函数来执行大量的查询，如下所示。
The solution is to have one function that performs one bulk query, as shown below.
不能下推的函数和操作会大大影响查询的性能。
Functions and operations that cannot be pushed down can greatly impact query performance.
通过成功处理程序和错误处理程序函数执行查询。
The query is executed with a success handler and an error handler function.
该查询计划展示了函数索引的使用。
注意：当索引表达式被用于关系表达式，或作为某个操作符类函数的参数时，查询优化器将考虑使用函数索引。
Note: the query optimizer considers using a functional index when the index expression is used in a relational expression or as an argument to one of the operator class functions.
查询函数能够处理标准化数据库事务，以便创建、读取、更新和删除数据(通称CRUD操作)。
The querying functions are capable of coping with the standard database transactions for creating, reading, updating, and deleting data (known as CRUD operations).
第一个查询使用length函数。
解决此问题的一种方法是使用转型函数将查询的返回数据转型为VARCHAR。
A way to work around this is to cast the return of the query to a VARCHAR using a cast function.
当一个查询引用一个函数模板时，查询优化器尝试生成一个灵活的计划，允许在远程数据源上计算这个函数引用。
When a query references a function template, the query optimizer tries to generate a feasible plan that allows this function reference to be evaluated on the remote data source.
使用动态sql对性能有轻微影响，但是比使用生成的abap函数运行相同查询快得多。
Using dynamic SQL results in a minor performance hit, but it is much faster than running the same query using a generated ABAP function.
注意：优化器不会对下面这个查询使用函数索引。
Note: Here is a query for which the optimizer cannot consider using the functional index.
查询用在PDH函数调用中更新它管理的计数器，因而获取性能数据。
Queries are used within PDH function calls to update the counters it manages, thereby obtaining performance data.
只使用映射函数通过视图查询数据可能能满足大多数开发人员的需求。
Querying data through views using only map functions probably covers most developer needs.
现在只需要编写一个执行查询的函数。
Now, all that's left is to build a function for executing this query.
DB 2允许将简单逻辑或查询封装在sql函数中。
DB2 allows simple logic or queries to be encapsulated into SQL functions.
创建查询会返回一个句柄，可以用它来访问PDH函数中的查询。
The creation of a query returns a handle, which is used to allow access to the query in PDH functions.
为了从db2表函数创建集群描述查询主题，您需要。
To create the cluster description query subject from the DB2 table function.
使用数据库支持的函数作为查询表达式来扩展语法。
Using a database-supported function as a query expression to extend the grammar.
fetch函数寻找一个特定查询。
IBM提供的XQuery函数允许查询关系数据，并与来自支持XML的列的XML结果组合在一起。
IBM provides XQuery functions that allow you to query relational data and mix and match the results with the XML from the XML-aware columns.
可以使用SQLObject的AND和OR函数来组合查询子句。
You can use SQLObject's and and OR functions to combine query clauses.
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