我正在尝试配置Solr以允许来自我的数据库的查询数据。在我配置它之后，我添加了一个新字段，它是另一个表的外键。
旧记录将此字段设为NULL。
架构数据库
表：优惠
字段：id，type_material（外键），（其他字段不需要显示）
表：材料
字段：id，name
Solr config
文件db-data-config.xml：
<dataConfig>
<dataSource type="JdbcDataSource" driver="com.mysql.jdbc.Driver" url="jdbc:mysql://path" user="user" password="pwd" />
<document name="offers">
<entity name="offers"
query="SELECT o.* FROM offers o inner join offer_group g on o.offer_group_id = g.id where g.status = 0"
deltaQuery="select id from offers where updated_at > '${dataimporter.last_index_time}'">
<field column="id" name="id" />
<field column="product_code" name="product_code" />
<field column="gender" name="gender" />
<field column="colors" name="colors" />
<field column="year" name="year" />
<field column="tags" name="tags" />
<field column="size" name="size" />
<field column="size_typology" name="size_typology" />
<field column="season" name="season" />
<field column="quantity" name="quantity" />
<field column="price" name="price" />
<field column="typology" name="typology" />
<field column="model" name="model" />
<entity name="brands"
query="select name from brands where id='${offers.brand_id}'"
deltaQuery="select id from brands where updated_at > '${dataimporter.last_index_time}'" >
<field name="brand_name" column="name" />
</entity>
<entity name="materials"
query="select name from materials where id='${offers.type_material}' OR '${offers.type_material}' = NULL">
<field name="material_name" column="name" />
</entity>
<entity name="offer_group"
query="select shop_id from offer_group where id='${offers.offer_group_id}'"
deltaQuery="select id from offer_group where updated_at > '${dataimporter.last_index_time}'" >
<field name="shop_id" column="shop_id" />
</entity>
</entity>
</document>
</dataConfig>
文件schema.xml：
<?xml version="1.0" encoding="UTF-8" ?>
<schema name="offers" version="1.5">
<fieldType name="string" class="solr.StrField"></fieldType>
<fieldType name="boolean" class="solr.BoolField" sortMissingLast="true"/>
<fieldType name="int" class="solr.TrieIntField" precisionStep="0" positionIncrementGap="0"/>
<fieldType name="float" class="solr.TrieFloatField" precisionStep="0" positionIncrementGap="0"/>
<fieldType name="long" class="solr.TrieLongField" precisionStep="0" positionIncrementGap="0"/>
<fieldType name="double" class="solr.TrieDoubleField" precisionStep="0" positionIncrementGap="0"/>
<fieldType name="date" class="solr.TrieDateField" precisionStep="0" positionIncrementGap="0"/>
<!-- Just like text_general except it reverses the characters of
each token, to enable more efficient leading wildcard queries. -->
<fieldType name="text_general" class="solr.TextField" positionIncrementGap="100">
<analyzer type="index">
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.StandardFilterFactory"/>
<filter class="solr.ASCIIFoldingFilterFactory" />
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.ReversedWildcardFilterFactory" withOriginal="true"
maxPosAsterisk="3" maxPosQuestion="2" maxFractionAsterisk="0.33" minTrailing="3" />
<filter class="solr.EdgeNGramFilterFactory" minGramSize="1" maxGramSize="15" />
</analyzer>
<analyzer type="query">
<tokenizer class="solr.StandardTokenizerFactory"/>
<filter class="solr.ASCIIFoldingFilterFactory" />
<filter class="solr.StandardFilterFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
</analyzer>
</fieldType>
<fieldType name="random" class="solr.RandomSortField" indexed="true" />
<dynamicField name="random_*" type="random" indexed="true" stored="false"/>
<!-- End randomize offers-->
<field name="_version_" type="long" indexed="true" stored="true" required="false"/>
<field name="id" type="long" indexed="true" stored="true" required="true" />
<field name="brand_id" type="long" indexed="true" stored="true" required="true" />
<field name="shop_id" type="long" indexed="true" stored="true" required="true" />
<field name="brand_name" type="text_general" indexed="true" stored="true" required="true" />
<field name="type_material" type="long" indexed="true" stored="true" default="NULL" />
<field name="material_name" type="text_general" indexed="true" stored="true" default="NULL" />
<field name="offer_group_id" type="long" indexed="true" stored="true" required="true" />
<field name="product_code" type="text_general" indexed="true" stored="true" default="NULL" />
<field name="gender" type="string" indexed="true" stored="true" default="NULL" />
<field name="colors" type="text_general" indexed="true" stored="true" default="NULL" />
<field name="year" type="text_general" indexed="true" stored="true" default="NULL" />
<field name="tags" type="text_general" indexed="true" stored="true" default="NULL" />
<field name="size" type="string" indexed="true" stored="true" default="NULL" />
<field name="size_typology" type="string" indexed="true" stored="true" default="NULL" />
<field name="season" type="text_general" indexed="true" stored="true" default="NULL" />
<field name="quantity" type="string" indexed="true" stored="true" default="NULL" />
<field name="price" type="float" indexed="true" stored="true" default="NULL" />
<field name="typology" type="text_general" indexed="true" stored="true" default="NULL" />
<field name="photo_url" type="string" indexed="true" stored="true" required="true" />
<field name="model" type="text_general" indexed="true" stored="true" default="NULL" />
<field name="created_at" type="date" indexed="true" stored="true"/>
<field name="updated_at" type="date" indexed="true" stored="true"/>
<field name="text" type="text_general" indexed="true" stored="false" multiValued="true"/>
<uniqueKey>id</uniqueKey>
<copyField source="colors" dest="text"/>
<copyField source="year" dest="text"/>
<copyField source="season" dest="text"/>
<copyField source="typology" dest="text"/>
<copyField source="model" dest="text"/>
<copyField source="tags" dest="text"/>
<copyField source="product_code" dest="text"/>
<copyField source="brand_name" dest="text"/>
<copyField source="material_name" dest="text" />
<copyField source="gender" dest="text"/>
</schema>
当搜索的查询开始时，返回所有 type_material 的字段等于NULL的商品。
我也要重试那些。
答案 0 :(得分：0)
只需使用过滤查询&fq=type_material:NULL