前导通配符在 Lucene.NET 中引发错误 [英] Leading wildcard character throws error in Lucene.NET

问题描述

如果搜索查询包含前导通配符(* 或 ?)，则 QueryParser 的 Parse 函数抛出错误.

If the search query contains a leading wildcard character (* or ?), the QueryParser's Parse function throws an error.

Dim q As String = "*abc"
Dim qp As New QueryParser("text", New StandardAnalyzer())
Dim query As Query = qp.Parse(q)

在 Lucene.NET v2.0.0.4 中有没有办法解决这个问题?

Is there any way to solve this problem in Lucene.NET v2.0.0.4?

推荐答案

设置 QueryParser.SetAllowLeadingWildcard 方法 为真.API 页面指出这可能会在大索引上产生非常慢的查询".

Set QueryParser.SetAllowLeadingWildcard Method to true. The API page states that "this can produce very slow queries on big indexes" though.

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