Solr Filed 一般类型属性

对于Solr的一般属性(General Properties), 它适用于任何Field Type. 有以下一般属性：

 

Property	Description	Values
name
class
positionIncrementGap	For multivalued fields, specifies a distance between multiple values, which prevents spurious phrase matches. 对于多值域来说， 在值域之间指定一个距离来防止伪短语的匹配。	integer
autoGeneratePhraseQueries	For text fields. If true, Solr automatically generates phrase queries for adjacent terms. If false, terms must be enclosed in double-quotes to be treated as phrases. 对于text field（solr.TextField）, 如果为true， Solr自动地将相邻的词生成短语查询语句。如果为False, terms根据TokenizerFactory划分为不同的短语。	true or false
docValuesFormat	Defines a custom DocValuesFormat to use for fields of this type. This requires that a schema-aware codec, such as the SchemaCodecFactory has been configured in solrconfig.xml. 定义DocValues的存储格式。	n/a
postingsFormat	Defines a custom PostingsFormat to use for fields of this type.This requires that a schema-aware codec, such as the SchemaCodecFactory has been configured in solrconfig.xml.	n/a

 

 

1. PositionIncrementGap example:

假如一个document有一个叫"author" 的 multi-valued 域， 值为：

author: John Doe 

author: Bob Smith 

当PositionIncrementGap =0时， 查询语句(Query)："doe bob", 会匹配这个Field, 显然这不是所希望看到的， 那么 PositionIncrementGap 会解决这个问题, 如：

<fieldType name="text_general" class="solr.TextField" positionIncrementGap="100" multiValued="true"> </fieldType>

 

2. autoGeneratePhraseQueries， example:

<fieldType name="text_en_splitting" class="solr.TextField" autoGeneratePhraseQueries="true" positionIncrementGap="100">

</fieldType>

 

<fieldType name="text_ja" class="solr.TextField" autoGeneratePhraseQueries="false"></fieldType>