{"id":1541243,"date":"2018-05-29T14:09:18","date_gmt":"2018-05-29T21:09:18","guid":{"rendered":"https:\/\/theeventscalendar.com\/support\/forums\/topic\/slow-query-2\/"},"modified":"2018-05-29T14:09:18","modified_gmt":"2018-05-29T21:09:18","slug":"slow-query-2","status":"closed","type":"topic","link":"https:\/\/theeventscalendar.com\/support\/forums\/topic\/slow-query-2\/","title":{"rendered":"Slow query"},"content":{"rendered":"<p>Hi the following query is just killing my database server it takes more than 300 seconds to finish:<\/p>\n<pre><code>SELECT DISTINCT(pm.meta_value) FROM wp_postmeta pm\n    LEFT JOIN wp_posts p\n    ON pm.meta_value = p.ID\n    WHERE p.post_type IN (&#039;tribe_events&#039;)\n    AND pm.meta_key LIKE &#039;\\_tribe\\_%\\_for\\_event&#039;\n    AND pm.meta_value IS NOT NULL;<\/code><\/pre>\n<p>My wp_postmeta has about 600k records so my guess is that the DISTINCT and LIKE operators are just performance killers due to the number of records it needs to search.<\/p>\n<p>Any ideas on how to fix this?<\/p>\n","protected":false},"template":"","class_list":["post-1541243","topic","type-topic","status-closed","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Slow query -<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/theeventscalendar.com\/support\/forums\/topic\/slow-query-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Slow query -\" \/>\n<meta property=\"og:description\" content=\"Hi the following query is just killing my database server it takes more than 300 seconds to finish: SELECT DISTINCT(pm.meta_value) FROM wp_postmeta pm LEFT JOIN wp_posts p ON pm.meta_value = p.ID WHERE p.post_type IN (&#039;tribe_events&#039;) AND pm.meta_key LIKE &#039;_tribe_%_for_event&#039; 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AND pm.meta_value IS NOT NULL; My wp_postmeta has about 600k records so my guess is that [&hellip;]","og_url":"https:\/\/theeventscalendar.com\/support\/forums\/topic\/slow-query-2\/","twitter_card":"summary_large_image","schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/theeventscalendar.com\/support\/forums\/topic\/slow-query-2\/","url":"https:\/\/theeventscalendar.com\/support\/forums\/topic\/slow-query-2\/","name":"Slow query -","isPartOf":{"@id":"https:\/\/theeventscalendar.com\/support\/#website"},"datePublished":"2018-05-29T21:09:18+00:00","breadcrumb":{"@id":"https:\/\/theeventscalendar.com\/support\/forums\/topic\/slow-query-2\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/theeventscalendar.com\/support\/forums\/topic\/slow-query-2\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/theeventscalendar.com\/support\/forums\/topic\/slow-query-2\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/theeventscalendar.com\/support\/"},{"@type":"ListItem","position":2,"name":"Topics","item":"https:\/\/theeventscalendar.com\/support\/topics\/"},{"@type":"ListItem","position":3,"name":"Calendar Products","item":"https:\/\/theeventscalendar.com\/support\/forums\/forum\/events\/"},{"@type":"ListItem","position":4,"name":"Events Calendar PRO","item":"https:\/\/theeventscalendar.com\/support\/forums\/forum\/events\/events-calendar-pro\/"},{"@type":"ListItem","position":5,"name":"Slow query"}]},{"@type":"WebSite","@id":"https:\/\/theeventscalendar.com\/support\/#website","url":"https:\/\/theeventscalendar.com\/support\/","name":"","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/theeventscalendar.com\/support\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"}]}},"_links":{"self":[{"href":"https:\/\/theeventscalendar.com\/support\/wp-json\/wp\/v2\/topic\/1541243","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/theeventscalendar.com\/support\/wp-json\/wp\/v2\/topic"}],"about":[{"href":"https:\/\/theeventscalendar.com\/support\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/theeventscalendar.com\/support\/wp-json\/wp\/v2\/topic\/1541243\/revisions"}],"wp:attachment":[{"href":"https:\/\/theeventscalendar.com\/support\/wp-json\/wp\/v2\/media?parent=1541243"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}