Question

这里我使用的是DSE-3.0。我想索引来自cassandra数据库的solr中的列类型=“timestamp”name =“DateTime”。在solr中schema.xml中的fieldType应该是type =“timestamp”。请帮助我。我非常需要它。谢谢这是我的数据库输出： - cqlsh：mykeyspace＆GT; SELECT * FROM mysolr;

但是在查询时没有给出Date_Time字段的值。我在solr中的查询输出是： - ID，身体，标题，姓名，日期 124，每个锅里都有一只鸡......，炉边聊天，罗斯福，“1933年12月15日”

我缺少配置。请指导我正确的方法。谢谢。

Answer 1

在4.2之前的Solr版本中，示例schema.xml中有timestamp字段实现了预定义的date fieldType

 <field name="timestamp" type="date" indexed="true" stored="true" default="NOW"      
      multiValued="false"/>

这是日期fieldType定义

       <!-- The format for this date field is of the form 1995-12-31T23:59:59Z, and
         is a more restricted form of the canonical representation of dateTime
         http://www.w3.org/TR/xmlschema-2/#dateTime    
         The trailing "Z" designates UTC time and is mandatory.
         Optional fractional seconds are allowed: 1995-12-31T23:59:59.999Z
         All other components are mandatory.

         Expressions can also be used to denote calculations that should be
         performed relative to "NOW" to determine the value, ie...

               NOW/HOUR
                  ... Round to the start of the current hour
               NOW-1DAY
                  ... Exactly 1 day prior to now
               NOW/DAY+6MONTHS+3DAYS
                  ... 6 months and 3 days in the future from the start of
                      the current day

         Consult the DateField javadocs for more information.

         Note: For faster range queries, consider the tdate type
      -->
    <fieldType name="date" class="solr.TrieDateField" precisionStep="0" positionIncrementGap="0"/>

基于这个例子，我建议使用日期字段类型，注意它将以UTC格式存储。

索引列类型=来自cassandra数据库的solr中的“timestamp”

1 个答案: