{"id":208069,"date":"2025-07-08T14:00:16","date_gmt":"2025-07-08T06:00:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/208069\/"},"modified":"2025-07-08T14:00:16","modified_gmt":"2025-07-08T06:00:16","slug":"cloud-firestore-%e5%8f%98%e5%be%97%e9%9d%9e%e5%b8%b8%e6%85%a2","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/208069\/","title":{"rendered":"cloud firestore \u53d8\u5f97\u975e\u5e38\u6162"},"content":{"rendered":"

<\/b> <\/p>\n

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> cloud firestore \u53d8\u5f97\u975e\u5e38\u6162<\/span><\/p>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-04-28 15:03:37<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u4eca\u5929\u7ed9\u5927\u5bb6\u5e26\u6765\u4e86\u300acloud firestore \u53d8\u5f97\u975e\u5e38\u6162\u300b<\/span>\uff0c\u5176\u4e2d\u6d89\u53ca\u5230\u7684\u77e5\u8bc6\u70b9\u5305\u62ec<\/span>\u7b49\u7b49\uff0c\u65e0\u8bba\u4f60\u662f\u5c0f\u767d\u8fd8\u662f\u8001\u624b\uff0c\u90fd\u9002\u5408\u770b\u4e00\u770b\u54e6~\u6709\u597d\u7684\u5efa\u8bae\u4e5f\u6b22\u8fce\u5927\u5bb6\u5728\u8bc4\u8bba\u7559\u8a00\uff0c\u82e5\u662f\u770b\u5b8c\u6709\u6240\u6536\u83b7\uff0c\u4e5f\u5e0c\u671b\u5927\u5bb6\u80fd\u591a\u591a\u70b9\u8d5e\u652f\u6301\u5440\uff01\u4e00\u8d77\u52a0\u6cb9\u5b66\u4e60~<\/p>\n

\u95ee\u9898\u5185\u5bb9
\n <\/p>\n

\u5230\u76ee\u524d\u4e3a\u6b62\uff0c\u6211\u4f7f\u7528 cloud sql \u4f5c\u4e3a\u540e\u7aef\u6570\u636e\u5e93\u6784\u5efa\u4e86\u4e00\u4e2a\u9879\u76ee\u3002<\/p>\n

\u7531\u4e8e\u6570\u636e\u662f\u7531\u76f8\u5f53\u5c0f\u7684\u8bb0\u5f55\u6784\u6210\u7684\uff0c\u6211\u8ba4\u4e3a\u6587\u6863\u5b58\u50a8\u4f1a\u66f4\u9002\u5408\u5b83 – \u7279\u522b\u662f\u56e0\u4e3a postgres \u4e0d\u5bb9\u6613\u6269\u5c55\u3002\u6240\u4ee5\u6211\u60f3\u5c1d\u8bd5 datastore<\/strong> – \u5b83\u5df2\u88ab\u5f03\u7528\u5e76\u88ab firestore<\/strong> \u53d6\u4ee3 – \u5f88\u597d\u3002<\/p>\n

\u6211\u5c06\u4e00\u4e2a\u6587\u6863\u63d2\u5165\u4e00\u4e2a\u96c6\u5408\uff0c\u5728\u4e91 sql \u4e0a\u4f7f\u7528\u4e00\u5f20\u8868\u521b\u5efa\u4e00\u4e2a\u6d4b\u8bd5 sql \u6570\u636e\u5e93\u5e76\u63d2\u5165\u76f8\u540c\u7684\u8bb0\u5f55\uff0c\u7136\u540e\u5728 go \u4e2d\u8fd0\u884c\u4e00\u4e2a\u7b80\u5355\u7684\u57fa\u51c6\u6d4b\u8bd5\u3002<\/p>\n

soooo\uff1a**cloud sql postgres<\/strong> \u53ef\u4ee5\u5728 firebase \u7ba1\u7406\u5927\u7ea6 66 \u4e2a\u54cd\u5e94\uff0817.006.551 ns\/op\uff09\u7684\u540c\u65f6\u8fd4\u56de 6000 \u4e2a\uff08198.650 ns\/op\uff09\u54cd\u5e94\u3002** <\/p>\n

\u6211\u4e00\u5b9a\u662f\u505a\u9519\u4e86\u4ec0\u4e48\u3002\u5373\u4f7f postgres \u65e0\u6cd5\u6269\u5c55\uff0c\u5728\u63a5\u8fd1\u5305\u542b\u4e00\u4e2a\u6587\u6863\u7684\u4e00\u4e2a\u96c6\u5408\u4e0a\u7684\u4e00\u4e2a\u7d22\u5f15\u7684 firestore \u7684\u6027\u80fd\u4e4b\u524d\uff0c\u5b83\u4e5f\u4f1a\u51cf\u6162 100 \u500d\u3002<\/p>\n

\u6211\u4f7f\u7528\u4ee5\u4e0b\u6807\u5fd7\u4ece 4 \u6838\u30018gb ram \u8ba1\u7b97\u5b9e\u4f8b <\/code> \u8fd0\u884c\u57fa\u51c6\u6d4b\u8bd5\uff1a<\/p>\n

go test -bench=. -benchtime=1s -test.parallel=1 -cpu=1<\/pre>\n
\u8fd9\u662f\u6211\u7528\u4e8e firestore \u7684\u57fa\u51c6\uff1a<\/p>\n
func benchmark_fetchsingle(b *testing.b) {\n\n    ctx := context.background()\n\n    client, _ := firestore.newclient(ctx, \"project-123\", option.withcredentialsfile(\"key.json\"))\n    defer client.close()\n    for n := 0; n < b.n; n++ {\n        c,_ := client.collection(\"documents\").doc(\"documentid\").get(ctx)\n        c = c\n    }\n}<\/pre>\n
\u8fd9\u662f\u4e91 sql (postgres) \u7684\uff1a<\/p>\n
func Benchmark_sql(b *testing.B) {\n    psqlInfo := fmt.Sprintf(\"host=%s port=%s user=%s password=%s dbname=%s \" +\n        \"sslmode=require sslrootcert=server.chain.cert sslcert=client.cert sslkey=client.key\",\n        \"ip.address.0.0\", \"5432\", \"user\", \"password\", \"database\")\n    sqldb, _ := sql.Open(\"postgres\", psqlInfo)\n    stmt, _ := sqldb.Prepare(`select property1, property2 from documents where pk = $1;`)\n    defer sqldb.Close()\n\n    for n := 0; n < b.N; n++ {\n        rows, _ := stmt.Query(\"DOCUMENTPK\")\n\n        rows.Next()\n        stuff := struct{\n            P1 string\n            P2 string}{}\n        rows.Scan(&(stuff.P1), &(stuff.P2))\n        stuff = stuff\n        rows.Close()\n    }\n}<\/pre>\n
firestore \u662f\u5426\u914d\u7f6e\u9519\u8bef\uff1f \u6211\u8ba4\u4e3a\u8fd8\u6709 spanner \u548c bigtable \u4f5c\u4e3a\u65e0 sql \u7684\u66ff\u4ee3\u54c1 – \u4f46\u5b83\u4eec\u7684\u6210\u672c\u5bf9\u4e8e\u6211\u7684\u7b80\u5355\u7528\u4f8b\u6765\u8bf4\u662f\u5de8\u5927\u7684\uff08\u81f3\u5c11\u662f\u4f30\u8ba1\uff0c\u6211\u53d1\u73b0\u8fd9\u662f\u76f8\u5f53\u4e0d\u900f\u660e\u7684\uff09<\/p>\n
 <\/p>\n
\u89e3\u51b3\u65b9\u6848<\/h2>\n
 <\/p>\n
\u5982\u679c\u4e0d\u8ba8\u8bba\u5982\u4f55\u8861\u91cf\u4e8b\u7269\uff0c\u5c31\u5f88\u96be\u5e2e\u52a9\u89e3\u51b3\u6027\u80fd\u95ee\u9898\uff0c\u8fd9\u5728 Stack Overflow \u4e0a\u662f\u9898\u5916\u8bdd\u3002\u56e0\u6b64\uff0c\u6211\u5c06\u5c1d\u8bd5\u89e3\u91ca\u5982\u4f55\u7406\u89e3 Firestore \u7684\u6027\u80fd\u7279\u5f81\uff0c\u5e76\u5e0c\u671b\u60a8\u80fd\u591f\u5c06\u5176\u6620\u5c04\u56de\u60a8\u770b\u5230\u7684\u7ed3\u679c\u3002<\/p>\n
Firestore \u7684\u4e3b\u8981\uff08\u4e5f\u662f\u76f8\u5f53\u72ec\u7279\u7684\uff09\u6027\u80fd\u4fdd\u8bc1\u662f\u6027\u80fd\u53d6\u51b3\u4e8e\u7ed3\u679c\u96c6\u7684\u5927\u5c0f\uff0c\u800c\u4e0d\u662f\u96c6\u5408\u7684\u5927\u5c0f\u3002\u7b80\u5355\u6765\u8bf4\uff1a\u5982\u679c\u4ece\uff08\u6bd4\u5982\u8bf4\uff091,000 \u4e2a\u6587\u6863\u7684\u96c6\u5408\u4e2d\u68c0\u7d22 10 \u4e2a\u6587\u6863\u9700\u8981 1 \u79d2\uff0c\u90a3\u4e48\u5f53\u96c6\u5408\u5305\u542b 1,000,000 \u6216 1,000,000,000 \u4e2a\u6587\u6863\u65f6\uff0c\u68c0\u7d22\u8fd9 10 \u4e2a\u6587\u6863\u4e5f\u9700\u8981 1 \u79d2\u3002<\/p>\n
\u8bf7\u6ce8\u610f\uff0c\u8fd9\u5e76\u6ca1\u6709\u8bf4\u660e\u5b9e\u9645\u6027\u80fd\uff0c\u56e0\u4e3a\u8fd9\u53d6\u51b3\u4e8e\u8bb8\u591a\u5176\u4ed6\u56e0\u7d20\u3002\u5b83\u4ec5\u4ec5\u8bf4\u660e\u4e86\u968f\u7740\u96c6\u5408\u7684\u589e\u957f\u800c\u53d1\u751f\u7684\u6027\u80fd\u53d8\u5316\u3002\u4f8b\u5982\uff1a\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u6027\u80fd\u4e0d\u4f1a\u6539\u53d8\u3002\u56e0\u6b64\uff0c\u867d\u7136\u5927\u591a\u6570\u6570\u636e\u5e93\u5728\u5e95\u5c42\u6570\u636e\u5e93\u589e\u957f\u65f6\u6027\u80fd\u4f1a\u4e0b\u964d\uff08\u901a\u5e38\u5728 O(n log n)<\/code> \u5de6\u53f3\uff09\uff0c\u4f46 Firestore \u7684\u6027\u80fd\u6301\u5e73\uff08\u5728\u68c0\u7d22 10 \u4e2a\u6587\u6863\u7684\u793a\u4f8b\u4e2d\u4e3a O(1)<\/code> \u6216 O(10)<\/code>\uff09 .<\/p>\n
\u7ec8\u4e8e\u4ecb\u7ecd\u5b8c\u5566\uff01\u5c0f\u4f19\u4f34\u4eec\uff0c\u8fd9\u7bc7\u5173\u4e8e\u300acloud firestore \u53d8\u5f97\u975e\u5e38\u6162\u300b\u7684\u4ecb\u7ecd\u5e94\u8be5\u8ba9\u4f60\u6536\u83b7\u591a\u591a\u4e86\u5427\uff01\u6b22\u8fce\u5927\u5bb6\u6536\u85cf\u6216\u5206\u4eab\u7ed9\u66f4\u591a\u9700\u8981\u5b66\u4e60\u7684\u670b\u53cb\u5427~\u516c\u4f17\u53f7\u4e5f\u4f1a\u53d1\u5e03Golang\u76f8\u5173\u77e5\u8bc6\uff0c\u5feb\u6765\u5173\u6ce8\u5427\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5f53\u524d\u4f4d\u7f6e\uff1a > > ...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-208069","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/208069","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=208069"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/208069\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=208069"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=208069"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=208069"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}