Thinking Sphinx 未知标识符 groupby

Question

我正在尝试根据文档http://pat.github.io/thinking-sphinx/searching.html#grouping 使用带有 group_by 选项的 Thinking Sphinx 搜索：

Point.search('point', group_by: :tour_id)

但是这段代码生成了不正确的 Sphinx 查询

SELECT *, groupby() as sphinx_internal_group, count(*) as sphinx_internal_count 
FROM `point_core`, `point_delta` 
WHERE MATCH('point') AND `sphinx_deleted` = 0 
GROUP BY `tour_id` LIMIT 0, 20

引发错误：

ThinkingSphinx::ParseError: index point_core,point_delta: 
parse error: unknown identifier 'groupby' (not an attribute, not a function) - 
SELECT *, groupby() as sphinx_internal_group, count(*) as sphinx_internal_count 
FROM `point_core`, `point_delta` WHERE MATCH('point') AND `sphinx_deleted` = 0 
GROUP BY `tour_id` LIMIT 0, 20; SHOW META

我正在使用thinking-sphinx-3.1.1。

group_by选项的正确使用方式是什么？

Answer 1

听起来您使用的是 Sphinx 2.0.x - Thinking Sphinx v3.1.x 默认需要 Sphinx 2.1.x。但是您可以configure it 以 Sphinx 2.0.x 所期望的方式行事。