我需要編寫一個查詢返回數據基於如果廣泛的不同元鍵包含特定的值。Wordpress自定義SQL查詢與多個postmeta左連接
我已經成功地編寫了一個可以工作的查詢 - 但我認爲必須有更好的方法。我的查詢完全是LEFT JOINS和OR語句。如果有人能改善我的查詢,我會非常感謝!
繼承人的野獸:
SELECT wp.post_type, nice_name, COUNT(wp.post_type) as counter
FROM wp_posts wp
LEFT JOIN wp_postmeta a ON (a.post_id = wp.ID AND a.meta_key = 'multiple_publication_issues_0_issue_number')
LEFT JOIN wp_postmeta b ON (b.post_id = wp.ID AND b.meta_key = 'multiple_publication_issues_1_issue_number')
LEFT JOIN wp_postmeta c ON (c.post_id = wp.ID AND c.meta_key = 'multiple_publication_issues_2_issue_number')
LEFT JOIN wp_postmeta d ON (d.post_id = wp.ID AND d.meta_key = 'multiple_publication_issues_3_issue_number')
LEFT JOIN wp_postmeta e ON (e.post_id = wp.ID AND e.meta_key = 'multiple_publication_issues_4_issue_number')
LEFT JOIN wp_postmeta f ON (f.post_id = wp.ID AND f.meta_key = 'multiple_publication_issues_5_issue_number')
LEFT JOIN wp_postmeta g ON (g.post_id = wp.ID AND g.meta_key = 'multiple_publication_issues_6_issue_number')
LEFT JOIN wp_postmeta h ON (h.post_id = wp.ID AND h.meta_key = 'multiple_publication_issues_7_issue_number')
LEFT JOIN wp_postmeta i ON (i.post_id = wp.ID AND i.meta_key = 'multiple_publication_issues_8_issue_number')
LEFT JOIN wp_postmeta j ON (j.post_id = wp.ID AND j.meta_key = 'multiple_publication_issues_9_issue_number')
LEFT JOIN wp_postmeta k ON (k.post_id = wp.ID AND k.meta_key = 'multiple_publication_issues_10_issue_number')
LEFT JOIN wp_postmeta l ON (l.post_id = wp.ID AND l.meta_key = 'multiple_publication_issues_11_issue_number')
LEFT JOIN wp_postmeta m ON (m.post_id = wp.ID AND m.meta_key = 'multiple_publication_issues_12_issue_number')
LEFT JOIN wp_postmeta n ON (n.post_id = wp.ID AND n.meta_key = 'multiple_publication_issues_13_issue_number')
LEFT JOIN wp_postmeta o ON (o.post_id = wp.ID AND o.meta_key = 'multiple_publication_issues_14_issue_number')
LEFT JOIN wp_postmeta p ON (p.post_id = wp.ID AND p.meta_key = 'multiple_publication_issues_15_issue_number')
INNER JOIN post_types ptt ON (wp.post_type = ptt.post_type)
WHERE wp.post_status = 'publish'
AND(a.meta_value = 119
OR b.meta_value = '119'
OR c.meta_value = '119'
OR d.meta_value = '119'
OR e.meta_value = '119'
OR f.meta_value = '119'
OR g.meta_value = '119'
OR h.meta_value = '119'
OR i.meta_value = '119'
OR j.meta_value = '119'
OR k.meta_value = '119'
OR l.meta_value = '119'
OR m.meta_value = '119'
OR n.meta_value = '119'
OR o.meta_value = '119'
OR p.meta_value = '119')
GROUP BY wp.post_type, nice_name
http://codereview.stackexchange.com/ – Mihai 2014-09-23 14:43:03