{"id":208286,"date":"2025-07-08T13:42:27","date_gmt":"2025-07-08T05:42:27","guid":{"rendered":"https:\/\/server.hk\/cnblog\/208286\/"},"modified":"2025-07-08T13:42:27","modified_gmt":"2025-07-08T05:42:27","slug":"%e8%bf%ad%e4%bb%a3-bigtable-%e8%a1%8c%e4%b8%8a%e7%9a%84%e5%8d%95%e5%85%83%e6%a0%bc%e7%89%88%e6%9c%ac","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/208286\/","title":{"rendered":"\u8fed\u4ee3 BigTable \u884c\u4e0a\u7684\u5355\u5143\u683c\u7248\u672c"},"content":{"rendered":"

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

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> \u8fed\u4ee3 BigTable \u884c\u4e0a\u7684\u5355\u5143\u683c\u7248\u672c<\/span><\/p>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-05-01 12:09:35<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u54c8\u55bd\uff01\u5927\u5bb6\u597d\uff0c\u5f88\u9ad8\u5174\u53c8\u89c1\u9762\u4e86\uff0c\u6211\u662f\u7684\u4e00\u540d\u4f5c\u8005\uff0c\u4eca\u5929\u7531\u6211\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u7bc7\u300a\u8fed\u4ee3 BigTable \u884c\u4e0a\u7684\u5355\u5143\u683c\u7248\u672c\u300b<\/span>\uff0c\u672c\u6587\u4e3b\u8981\u4f1a\u8bb2\u5230<\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5e0c\u671b\u5927\u5bb6\u4e00\u8d77\u5b66\u4e60\u8fdb\u6b65\uff0c\u4e5f\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u3001\u70b9\u8d5e\u3001\u6536\u85cf\u3001\u8f6c\u53d1! \u4e0b\u9762\u5c31\u4e00\u8d77\u6765\u770b\u770b\u5427\uff01<\/p>\n

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

\u6211\u6709\u4e00\u884c\u5305\u542b\u7279\u5b9a\u5355\u5143\u683c\u7684\u591a\u4e2a\u7248\u672c\u3002 \u6211\u60f3\u83b7\u53d6\u5e76\u8fed\u4ee3\u6b64\u5355\u5143\u683c\u7684\u6240\u6709\u73b0\u6709\u7248\u672c<\/strong>\u3002\u50cf\u8fd9\u6837\u7684\u4e1c\u897f\uff1a<\/p>\n

for _, cellversion := range row[\"columnfamily\"][\"columnqualifier\"]{\n   \/\/ (...)\n}<\/pre>\n
\u6211\u5c1d\u8bd5\u4f7f\u7528\u51fd\u6570 readrow<\/code> \u4f46\u5b83\u8fd4\u56de\u4e00\u4e2a map[string][]readitem<\/code> \uff0c\u663e\u7136\uff0c\u8fd9\u662f\u4e00\u4e2a\u4e00\u7ef4\u5143\u80de\u6570\u7ec4\u3002 <\/p>\n
row, err := table.ReadRow(ctx, rowKey)\nrow[\"MyColumnFamily\"] \/\/ -> array of unidimensional cells<\/pre>\n
 <\/p>\n
\u89e3\u51b3\u65b9\u6848<\/h2>\n
 <\/p>\n
\u6211\u7684\u95ee\u9898\u7684\u539f\u56e0\u662f bigtable \u6570\u636e\u6a21\u578b\u652f\u6301\u6bcf\u4e2a\u5355\u5143\u7684\u591a\u4e2a\u7248\u672c\u3002\u8fc7\u4e8e\u7b80\u5355\u5316\uff1a\u6bcf\u4e2a\u5355\u5143\u683c\u90fd\u662f\u76f8\u4f3c\u6570\u636e\u7684\u4e0d\u540c\u7248\u672c\u7684\u591a\u7ef4\u6570\u7ec4\u3002<\/p>\n<\/p>\n
python sdk \u4ee5\u975e\u5e38\u7b80\u5355\u7684\u65b9\u5f0f\u5b9e\u73b0\u4e86\u8fd9\u4e2a\u6982\u5ff5\uff1a\u6bcf\u4e2a\u5355\u5143\u683c\u90fd\u8868\u793a\u4e3a\u4e00\u4e2a\u9879\u76ee\u5217\u8868\uff08\u53ef\u80fd\u7248\u672c\u7684\u5217\u8868\uff09\u3002<\/p>\n
>>> row = table.read_row(row_key)\n>>> data = row.to_dict()\n>>> cell = data[<column_family:column_qualifier>]\n[<cell value=b'bla1' timestamp=2020-01-16 21:45:39.921000>, <cell value=b'bla2' timestamp=2020-01-16 21:57:31>...]<\/pre>\n
\u7136\u800c\uff0c\u5728golang sdk\u4e2d\uff0c\u6240\u6709\u5355\u5143\u683c\u7684\u6240\u6709\u7248\u672c\u90fd\u4f4d\u4e8e\u540c\u4e00\u4e2a\u6570\u7ec4\u4e2d\u3002\u56e0\u6b64\uff0c\u5982\u679c\u60a8\u60f3\u8981\u4e00\u4e2a\u5305\u542b\u540c\u4e00\u5355\u5143\u7684\u6240\u6709\u7248\u672c\u7684\u6570\u7ec4\uff0c\u5219\u5fc5\u987b\u624b\u52a8\u5bf9\u5176\u8fdb\u884c\u5206\u7ec4\u3002 <\/p>\n
row, _ := r.table.readrow(ctx, row_key)\ncolumns, ok := row[<column_family>]\n\nvalues := make(map[string][]bigtable.readitem, 0)\n\nfor _, cell := range columns {\n    _, ok := values[cell.column]\n    if !ok {\n        values[cell.column] = make([]bigtable.readitem, 0)\n    }\n\n    values[cell.column] = append(values[cell.column], cell)\n }<\/pre>\n
\u73b0\u5728\u6211\u4eec\u53ef\u4ee5\u8bbf\u95ee\u540c\u4e00\u5355\u5143\u7684\u4e0d\u540c\u7248\u672c\u7684\u5217\u8868\uff1a<\/p>\n
cell := values[<column_family:column_qualifier>]\nfor _, cellversion := range cell{\n    ...\n}<\/pre>\n
\u60a8\u5e94\u8be5\u80fd\u591f\u83b7\u53d6\u7279\u5b9a\u5217\u7684\u884c\uff0c\u7136\u540e\u8fed\u4ee3\u6240\u6709\u7ed3\u679c\uff1a<\/p>\n
rowkey := \"YOUR_KEY\"\nrow, err := tbl.ReadRow(ctx, rowkey, bigtable.RowFilter(bigtable.ColumnFilter(\"ColumnQualifier\")))\nif err != nil {\n    log.Fatalf(\"Could not read row with key %s: %v\", rowkey, err)\n}\n\nprintRow(w, row)\n\nfunc printRow(w io.Writer, row bigtable.Row) {\n    fmt.Fprintf(w, \"Reading data for %s:\\n\", row.Key())\n    for columnFamily, cols := range row {\n        fmt.Fprintf(w, \"Column Family %s\\n\", columnFamily)\n        for _, col := range cols {\n            qualifier := col.Column[strings.IndexByte(col.Column, ':')+1:]\n            fmt.Fprintf(w, \"\\t%s: %s @%d\\n\", qualifier, col.Value, col.Timestamp)\n        }\n    }\n    fmt.Fprintln(w)\n}<\/pre>\n
\u4ee5\u4e0a\u5c31\u662f\u300a\u8fed\u4ee3 BigTable \u884c\u4e0a\u7684\u5355\u5143\u683c\u7248\u672c\u300b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8e\u7684\u8d44\u6599\u8bf7\u5173\u6ce8\u516c\u4f17\u53f7\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-208286","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/208286","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=208286"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/208286\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=208286"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=208286"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=208286"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}