如何使用单个 solr 实例或 Solr 模板字段无法正常工作来索引和搜索同一数据源中的两个不同表 [英] How to index and search two different tables which are in same datasource using single solr instance Or Solr Template fields not working properly

问题描述

我想索引和搜索两个不同的实体.

I want to index and search two different entity.

文件名:db-data-config.xml

<dataConfig>
    <dataSource name="myindex" driver="com.microsoft.sqlserver.jdbc.SQLServerDriver" url="jdbc:sqlserver://test-pc:1433;DatabaseName=SampleDB" user="username" password="password" />
    <document>


     <entity name="Employees" query="select * from employee" transformer="TemplateTransformer" dataSource="myindex">
            <field column="id" name="singlekey" />
            <field column="eId" name="eid" />
            <field column="eName" name="ename" />
            <field column="entity" template="Employee" name="entity" />
    </entity>

    <entity name="Products" query="select * from products" transformer="TemplateTransformer" dataSource="myindex">
            <field column="id" name="singlekey" />
            <field column="pId" name="pid" />
            <field column="pName" name="pname" />
            <field column="entity" template="Product" name="entity" />
    </entity>

</document>

文件名:schema.xml

<?xml version="1.0" encoding="UTF-8" ?>
<schema name="db" version="1.1">
  <types>
    <fieldType name="string" class="solr.StrField" sortMissingLast="true" omitNorms="true"/>
 </types>
 <fields>

    <!-- Employee -->
    <field name="eid" type="string" indexed="true" stored="true" required="true" multiValued="false" /> 
    <field name="ename" type="string" indexed="true" stored="true" required="true" multiValued="false" /> 

    <!-- Products -->
    <field name="pid" type="string" indexed="true" stored="true" required="true" multiValued="false" />
    <field name="pname" type="string" indexed="true" stored="true" required="true" multiValued="false" />

    <!--Common fields-->
    <field name="entity" type="string" indexed="true" stored="true" required="true" multiValued="false" />
    <field name="singlekey" type="string" indexed="true" stored="true" required="true" multiValued="false" />
</fields>
<uniqueKey>singlekey</uniqueKey>
</schema>

按照以下链接:
https://stackoverflow.com/questions/5636209/how-to-index-and-search-two-different-tables-which-are-in-same-datasource-using
这个问题可以通过使用静态字段来解决(添加新字段 - 这里是 'entity').但是我看到添加第二个实体后，它甚至无法索引数据.

As per below link:
https://stackoverflow.com/questions/5636209/how-to-index-and-search-two-different-tables-which-are-in-same-datasource-using
This problem can solve by using static field (adding new field - here its 'entity'). But I saw that after adding second entity, it can't even index the data.

如下图所示.

它能够从 sql server 数据库中获取 10 条记录，但是索引 0 行，这意味着没有完成索引过程.所以连搜索都搜不到.任何人都可以解决这个问题?提前致谢.

Its able to fetch 10 records from sql server database but index 0 rows, means no indexing process done. So even can't search. Anyone can solve this problem? Thanks in advance.

推荐答案

架构中的所有字段都有

All of the fields in your schema have

required="true".

您告诉 Solr 每个实体的结果需要包含所有 eid、ename、pid、pname、entity 和 singlekey 字段.

You're telling Solr that the results from each entity need to have ALL of the eid, ename, pid, pname, entity, and singlekey fields.

Employee 没有 pid 或 pname 字段，因此不需要 pid 和 pname.同样，Product 没有 eid 或 ename 字段，因此不需要 eid 和 ename.

Employee doesn't have a pid or pname field, so pid and pname shouldn't be required. In the same sense, Product doesn't have a eid or ename field, so eid and ename shouldn't be required.

删除

required="true".

来自 pid、pname、eid 和 ename 将允许您建立索引.

from pid, pname, eid, and ename will allow you to index.

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