PHP MySQL Match（）对（）全文搜索不适用于某些关键字

Question

我以php开发人员的身份工作，而MySQL全文搜索存在问题。

这是我的查询

select distinct j.jobid,headline,company,country,state,city,location,
date_format(str_to_date(posted_dt, '%m-%d-%Y %H:%i:%s' ), '%M %d, %Y') posted_dt,joblinks 
from jobs j 
left join job_filters jf on jf.jobid = j.jobid 
left join job_emptype_map em on j.jobid = em.jobid 
left join job_sub_emptype_map sem on em.jobid = sem.jobid and em.emp_type = sem.emp_type 
where status=1 
And MATCH (headline,description,pri_skills,company) AGAINST ('java developer' IN natural language MODE) > 1 
And MATCH (location,country,state,city,zipcode,other_loc) AGAINST ('california, United States' WITH QUERY EXPANSION ) > 1 
order by str_to_date(posted_dt,'%m-%d-%Y %H:%i:%s') DESC limit 0,25

通过上述查询，我​​得到了正确的结果。 但这很费力（显示行0-24（共25行，查询耗时50.6951秒。）

当我更改关键字“ ui开发人员”而不是“ java开发人员”时，我得到0个结果

如果我用类似的功能检查关键字“ ui开发人员”，那么我会得到结果。

我不明白为什么匹配功能仅对某些关键字有效，为什么在我的托管计划为云计算时会花费太多时间。

Answer 1

我现在正在使用云服务器计划，并且已使用类似功能更新查询，现在查询是...

select distinct j.jobid,headline,company,country,state,city,location,date_format(str_to_date(posted_dt, '%m-%d-%Y %H:%i:%s' ), '%M %d, %Y') posted_dt,joblinks, (select count(distinct j.jobid) as jobcount from jobs j left join job_filters jf on jf.jobid = j.jobid left join job_emptype_map em on j.jobid = em.jobid left join job_sub_emptype_map sem on em.jobid = sem.jobid and em.emp_type = sem.emp_type where status = 1 and (concat(headline,' ',description,' ',pri_skills,' ',company) like '%java programer%' ) And ( country like '%United States%' ) ) jobcount from jobs j left join job_filters jf on jf.jobid = j.jobid left join job_emptype_map em on j.jobid = em.jobid left join job_sub_emptype_map sem on em.jobid = sem.jobid and em.emp_type = sem.emp_type where status=1 and (concat(headline,' ',description,' ',pri_skills,' ',company) like '%java programer%' )And ( country like '%United States%' ) order by str_to_date(posted_dt,'%m-%d-%Y %H:%i:%s') DESC limit 0,25   

我已经在上面的分页查询之间写了选择查询，上面的查询获得了不错的结果，但是花费了太多时间，请注意：我的工作表有大约50,000+条记录