IntPoint未对整数值编制索引 [英] IntPoint is not indexing integer values
问题描述
虽然我们尝试使用字段类型IntPoint索引整数值,但这些值似乎没有正确传输到我们的Lucene索引中。
While we're trying to index integer values with the Field Type "IntPoint", the values seem to be not transferred correctly into our Lucene Index.
我们是使用Lucene 6.0。
We are working with Lucene 6.0.
根据Lucene文档的代码片段:
According to the Lucene documention the code snippet:
doc.add(new IntPoint(LENGTH2, 17));
应将值为17的LENGTH2文档字段添加到可索引文档中。
不幸的是,我们的索引字段LENGHT2中没有值。
should add the LENGTH2 document field with the Value "17" to our indexable document. Unfortunately, there are no values in our index field LENGHT2.
我们还尝试使用不推荐使用的字段类型LegacyIntField。有了这个类型,我们在索引字段中得到了一些神秘的smybols,如:
We also tried this with the deprecated Field Type "LegacyIntField". With this Type we got some cryptic smybols in our index field like:
950 length h(5j
950 length pT
950 length xj
950 length `PkU2
对于这种类型我们使用了以下代码:
For this type we used the following code:
LegacyIntField intField = new LegacyIntField(LENGTH,0,Field.Store.NO);
intField.setIntValue(17);
doc.add(intField);
你知道一个解决方案吗?对于这个问题?
Do you know a solution for this problem?
加法:
你有一个有效的例子,其中包括IntPoint的索引和搜索吗?
我们试了一下,但似乎无法正常工作。
Lucene的Java代码IntPoint索引
我们也尝试在这个领域进行一些搜索。但结果与我们的预期不符。
We also tried to do some search on this field. But the results didn't match with that what we expected.
QueryParser parser = new MultiFieldQueryParser(fields,analyzer);
Query query = parser.parse("content:" + queryString);
Query queryNumeric = IntPoint.newRangeQuery(Indexer.LENGTH2, 0, 5);
Builder builder = new Builder();
builder.add(query, Occur.MUST);
builder.add(queryNumeric, Occur.MUST);
BooleanQuery booleanQ = builder.build();
TopDocs hits2 = is.search(booleanQ, 1000);
System.out.print("short: " + hits2.totalHits);
推荐答案
除此之外,您将索引字段为:
Besides that you're indexing field as:
doc.add(new IntPoint(LENGTH2,17));
您还需要通过添加 StoredField的单独实例来单独存储该字段
:
doc.add(new StoredField(LENGTH2,17));
根据 IntPoint的文档
快速范围过滤器的索引int字段。如果您还需要存储该值,则应添加单独的StoredField实例。
An indexed int field for fast range filters. If you also need to store the value, you should add a separate StoredField instance.
参考:
https://lucene.apache.org/core/6_1_0/core /org/apache/lucene/document/IntPoint.html
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