I started a series of articles concerning the cost of queries (and as a consequence concerning the choices the optimizer makes).<\/p>\n
This post is a index of these articles.<\/p>\n
1 – DB2 : Cost calculations 1 : Table Scan<\/a> I started a series of articles concerning the cost of queries (and as a consequence concerning the choices the optimizer makes). This post is a index of these articles. 1 – DB2 : Cost calculations 1 : Table Scan 2 – DB2 : Cost Calculations 2 : Index Only 3 – DB2 : Cost Calculations […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[81,64,79,32],"tags":[82,65,80,8],"class_list":["post-487","post","type-post","status-publish","format-standard","hentry","category-cost","category-db2","category-explain","category-index","tag-cost","tag-db2","tag-explain","tag-index"],"_links":{"self":[{"href":"https:\/\/maboc.nl\/index.php?rest_route=\/wp\/v2\/posts\/487","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/maboc.nl\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/maboc.nl\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/maboc.nl\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/maboc.nl\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=487"}],"version-history":[{"count":5,"href":"https:\/\/maboc.nl\/index.php?rest_route=\/wp\/v2\/posts\/487\/revisions"}],"predecessor-version":[{"id":505,"href":"https:\/\/maboc.nl\/index.php?rest_route=\/wp\/v2\/posts\/487\/revisions\/505"}],"wp:attachment":[{"href":"https:\/\/maboc.nl\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=487"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/maboc.nl\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=487"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/maboc.nl\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=487"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n2 – DB2 : Cost Calculations 2 : Index Only<\/a>
\n3 – DB2 : Cost Calculations 3 : index only revisited<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"