Question

如何让此查询查询多个值？

这很有效。看最后一行：

    SELECT part_groups, part_categories, critical_part, part_groups_count, project FROM 
    (SELECT part_groups.name as part_groups, part_groups.critical_part as critical_part, part_categories.name as part_categories, projects.action_code as project, COUNT(part_groups.id) as part_groups_count, to_tsvector(part_groups.name) || to_tsvector(part_categories.name) || to_tsvector(projects.action_code) as document 
    FROM part_groups 
    CROSS JOIN projects 
    CROSS JOIN phases 
    JOIN part_categories ON part_categories.id = part_groups.part_category_id 
    GROUP BY part_groups.name, part_groups.critical_part, part_categories.name, projects.action_code, phases.name) 
    p_search WHERE p_search.document @@ to_tsquery('queryOne');

这不起作用。最后一行：

    SELECT part_groups, part_categories, critical_part, part_groups_count, project FROM 
    (SELECT part_groups.name as part_groups, part_groups.critical_part as critical_part, part_categories.name as part_categories, projects.action_code as project, COUNT(part_groups.id) as part_groups_count, to_tsvector(part_groups.name) || to_tsvector(part_categories.name) || to_tsvector(projects.action_code) as document 
    FROM part_groups 
    CROSS JOIN projects 
    CROSS JOIN phases 
    JOIN part_categories ON part_categories.id = part_groups.part_category_id 
    GROUP BY part_groups.name, part_groups.critical_part, part_categories.name, projects.action_code, phases.name) 
    p_search WHERE p_search.document @@ to_tsquery('queryOne', 'queryTwo');

Answer 1

我不知道to_tsquery需要多个查询参数。试试这个：

WHERE p_search.document @@ to_tsquery('queryOne | queryTwo')

或

WHERE p_search.document @@ to_tsquery('queryOne & queryTwo')

取决于你的意图。

具有多个值的SQL查询

1 个答案: