问题描述
我有一系列包含要全文搜索的数据的表。我已经试过将表与 UNION
结合,但是结果会丢失其全文索引,因此无法进行全文搜索。我不认为将数据放入临时表是一种方法。有没有办法可以全文检索这些表格?
更新:
我的全文查询是
SELECT ID,标题,描述,作者,MATCH(标题,标签,正文)反对(搜索条款)AS相关性
FROM [表格组合(b)b
WHERE MATCH(标题,标签,正文) >解决方案
我有一系列包含要全文搜索的数据的表。我已经试过将表与 UNION
结合,但是结果会丢失其全文索引,因此无法进行全文搜索。我不认为将数据放入临时表是一种方法。有没有办法可以全文检索这些表格?
更新:
我的全文查询是
SELECT ID,标题,描述,作者,MATCH(标题,标签,正文)反对(搜索条款)AS相关性
FROM [表格组合(b)b
WHERE MATCH(标题,标签,正文) >解决方案
MySQL无法在多个表中创建全文(或任何)索引。因此,使用单一索引是不可能的。
或者,您可以:
在每个表上使用索引,并根据需要使用联合/联合来检索符合要求的行。 创建一个聚合表来应用索引。
(如果您打算进行任何比例缩放,这可能是最佳选择)
I have a series of tables that contain data I want to full text search. I've tried combining the tables with UNION
, but the result loses its fulltext index so can't be fulltext searched. I don't think that putting the data into a temp table is the way to go. Is there someway that I can fulltext search these tables efficiently? Thanks in advance!
UPDATE:
my query for fulltext was
SELECT ID, Title, Description, Author, MATCH (Title,Tags,Body) AGAINST ("search terms") AS Relevance
FROM [combination of tables goes here]
WHERE MATCH (Title,Tags,Body) AGAINST ("search terms")
MySQL can't make a fulltext (or any) index accross multiple tables. So using a single index is out.
As an alternative, you could either:
Use an index on each table, and a join/union as appropriate to retrieve the rows that match your requirements.
Create an aggregate table to apply the index to.
Use a tool such as lucene or solr to provide your search index. (If you are going for any sort of scale, this is likely the best option)
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