{"id":10020600,"date":"2025-01-10T17:05:06","date_gmt":"2025-01-10T09:05:06","guid":{"rendered":"https:\/\/itmax.cn\/?p=10020600"},"modified":"2025-01-10T17:05:06","modified_gmt":"2025-01-10T09:05:06","slug":"peewee-%e6%80%8e%e4%b9%88%e5%ae%9e%e7%8e%b0-count","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10020600","title":{"rendered":"peewee \u600e\u4e48\u5b9e\u73b0 count(*)"},"content":{"rendered":"<h2>\u95ee\u9898\uff1a<\/h2>\n<p>peewee \u7684 .count \u65b9\u6cd5\u662f\u5fc5\u987b\u8981\u52a0\u53c2\u6570\u7684\uff0c\u4e0d\u52a0\u53c2\u6570\u5c31\u4f1a\u7ffb\u8bd1\u6210 count() \uff0c\u662f\u975e\u6cd5\u7684 SQL<\/p>\n<p>SQL \u7684 count \u5fc5\u987b\u52a0 * \u6216\u8005\u5177\u4f53\u7684\u5b57\u6bb5<\/p>\n<p>\u800c peewee \u7684 count \u65b9\u6cd5\u76f4\u63a5\u52a0 .count(&#8216;<em>&#8216;) \u662f\u4e0d\u884c\u7684\uff0c\u4f1a\u88ab\u7ffb\u8bd1\u6210 count(&#8216;<\/em>&#8216;)\uff0c\u4e5f\u662f\u975e\u6cd5\u7684 SQL<\/p>\n<p>\u5408\u6cd5\u7684 SQL \u662f count(*)<\/p>\n<h2>\u89e3\u51b3\u529e\u6cd5<\/h2>\n<p>\u56de\u5230\u95ee\u9898\u300cpeewee \u600e\u4e48\u5b9e\u73b0 count(*) \u300d\u95ee\u4e86 3 \u4e2a ai\uff1a chatgpt\u3001deepseek v3\u3001gemini2 \u90fd\u56de\u7b54\u4e0d\u5bf9<\/p>\n<p>\u6700\u540e\u81ea\u5df1\u53bb github \u7684 issue \u91cc\u9762\u7ffb\u4e86\u4e00\u4e0b\uff0c\u4f5c\u8005\u7ed9\u51fa\u4e86\u65b9\u6cd5<\/p>\n<p>\u5c31\u662f\u7528 peewee \u7684 SQL \u51fd\u6570\uff0c\u5982\u4e0b\u9762\u8fd9\u6837 \u2b07\ufe0f<\/p>\n<pre><code class=\"python\">from peewee import SQL\n\n\nModel.select(Model.count(SQL('*')) <\/code><\/pre>\n<p>\u53c2\u8003\uff1a<a href=\"https:\/\/link.segmentfault.com\/?enc=lr07CHmD8gJmJwZswHmlFg%3D%3D.1ZST4Sq%2F7397cANaG9V3z76tcl%2FcysiaLZMPZt4dIj2WEx3YTk119Et53lc8Wnhr\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">Aliasing an arithmetic expression<\/a><\/p>\n<p><a href=\"https:\/\/segmentfault.com\/a\/1190000046004043\">https:\/\/segmentfault.com\/a\/1190000046004043<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u95ee\u9898\uff1a peewee \u7684 .count \u65b9\u6cd5\u662f\u5fc5\u987b\u8981\u52a0\u53c2\u6570\u7684\uff0c\u4e0d\u52a0\u53c2\u6570\u5c31\u4f1a\u7ffb\u8bd1\u6210 count() \uff0c\u662f\u975e\u6cd5\u7684  [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-10020600","post","type-post","status-publish","format-standard","hentry","category-share"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10020600","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10020600"}],"version-history":[{"count":0,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10020600\/revisions"}],"wp:attachment":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10020600"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10020600"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10020600"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}