{"id":47227,"date":"2022-12-31T09:53:02","date_gmt":"2023-06-04T07:29:42","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%bb%99%e6%82%a8%e4%bb%8b%e7%bb%8d%e4%b8%80%e4%b8%8bpostgresql%e7%9a%84%e9%80%bb%e8%be%91%e8%a7%a3%e7%a0%81%e5%8a%9f%e8%83%bd%e3%80%82\/"},"modified":"2024-04-29T07:47:56","modified_gmt":"2024-04-28T23:47:56","slug":"%e7%bb%99%e6%82%a8%e4%bb%8b%e7%bb%8d%e4%b8%80%e4%b8%8bpostgresql%e7%9a%84%e9%80%bb%e8%be%91%e8%a7%a3%e7%a0%81%e5%8a%9f%e8%83%bd%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%bb%99%e6%82%a8%e4%bb%8b%e7%bb%8d%e4%b8%80%e4%b8%8bpostgresql%e7%9a%84%e9%80%bb%e8%be%91%e8%a7%a3%e7%a0%81%e5%8a%9f%e8%83%bd%e3%80%82\/","title":{"rendered":"\u7ed9\u60a8\u4ecb\u7ecd\u4e00\u4e0bPostgreSQL\u7684\u903b\u8f91\u89e3\u7801\u529f\u80fd"},"content":{"rendered":"<p>\u6211\u5c06\u603b\u7ed3\u4e00\u4e0b\u6211\u8c03\u67e5\u4e86\u5173\u4e8e\u4ecePostgreSQL 9.4\u7248\u672c\u5f00\u59cb\u5b9e\u65bd\u7684\u903b\u8f91\u89e3\u7801\u7684\u7ed3\u679c\u3002\u4e2a\u4eba\u8ba4\u4e3a\u8fd9\u662f\u4e00\u4e2a\u975e\u5e38\u70ed\u95e8\u7684\u529f\u80fd\uff0c\u4f46\u5728\u7f51\u7edc\u4e0a\u51e0\u4e4e\u6ca1\u6709\u5173\u4e8e\u5b83\u7684\u65e5\u6587\u4fe1\u606f\uff0c\u6240\u4ee5\u6211\u4e5f\u5e0c\u671b\u901a\u8fc7\u8fd9\u6b21\u4ecb\u7ecd\u6765\u5ba3\u4f20\u4e00\u4e0b\u3002<\/p>\n<h1>\u903b\u8f91\u89e3\u7801\u662f\u4ec0\u4e48\uff1f<\/h1>\n<p>\u8fd9\u662f\u4e00\u9879\u7528\u4e8e\u4ece\u6a2a\u5411\u63d0\u53d6\u5bf9PostgreSQL\u8fdb\u884c\u7684\u66f4\u6539\u7684\u529f\u80fd\u3002<\/p>\n<p>\u672a\u6765\u7684\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u8ad6\u7406\u30ec\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\uff1a\u7279\u5b9a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3001\u7279\u5b9a\u30c6\u30fc\u30d6\u30eb\u306e\u307f\u30ec\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3etc.<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">PostgreSQL\u30b5\u30fc\u30d0\u9593\u3067\u66f4\u65b0\u3092\u4f1d\u64ad\u3057\u3042\u3046\u3053\u3068\u3067\u3001\u30de\u30eb\u30c1\u30de\u30b9\u30bf\u306aDB\u30b5\u30fc\u30d0\u30af\u30e9\u30b9\u30bf\u3092\u5b9f\u73fe<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">PostgreSQL\u304b\u3089\u66f4\u65b0\u5dee\u5206\u3092\u5f15\u304d\u51fa\u3057\u3066\u3001\u4ed6\u696d\u52d9\u306eDB\u3084Hadoop\u306a\u3069\u306b\u52b9\u7387\u7684\u306b\u30c7\u30fc\u30bf\u9023\u643a<\/ul>\n<p>\u9884\u8ba1\u4f1a\u51fa\u73b0\u5982\u6b64\u7684\u8fdb\u5316\u3002<\/p>\n<p>\u63d0\u53d6\u66f4\u6539\u4fe1\u606f\u662f\u901a\u8fc7PostgreSQL\u7684\u4e8b\u52a1\u65e5\u5fd7\uff08WAL\uff09\u8fdb\u884c\u7684\u3002\u4e8b\u52a1\u65e5\u5fd7\u5e76\u4e0d\u4ee5\u53ef\u8bfb\u7684\u5f62\u5f0f\u4fdd\u5b58\uff0c\u4f46\u5b83\u5177\u6709\u5c06\u5176\u903b\u8f91\u8f6c\u6362\u7684\u529f\u80fd\uff0c\u56e0\u6b64\u88ab\u79f0\u4e3a\u8fd9\u6837\u7684\u540d\u79f0\u3002<\/p>\n<p>\u5177\u4f53\u6765\u8bf4\uff0c<\/p>\n<pre class=\"post-pre\"><code>BEGIN;\r\nINSERT INTO foo VALUES (103, 'inserted');\r\nDELETE FROM foo WHERE a = 82;\r\nUPDATE foo SET b = 'updated' WHERE a = 21;\r\nCOMMIT;\r\n<\/code><\/pre>\n<p>\u5982\u679c\u8fdb\u884c\u4e86\u50cf\u8fd9\u6837\u7684\u66f4\u65b0\uff0c\u53ef\u4ee5\u4f7f\u7528Logical Decoding\u6765\u63d0\u53d6\u66f4\u6539\u4fe1\u606f\uff0c\u5c06\u5f97\u5230\u4ee5\u4e0b\u4fe1\u606f\u3002<\/p>\n<pre class=\"post-pre\"><code>postgres=# SELECT * FROM pg_logical_slot_get_changes('rep_slot', NULL, NULL);\r\n location  | xid  |                            data\r\n-----------+------+-------------------------------------------------------------\r\n 0\/1737AE8 | 1896 | BEGIN 1896\r\n 0\/1737AE8 | 1896 | table public.foo: INSERT: a[integer]:103 b[text]:'inserted'\r\n 0\/1737BB8 | 1896 | table public.foo: DELETE: a[integer]:82\r\n 0\/1737C00 | 1896 | table public.foo: UPDATE: a[integer]:21 b[text]:'updated'\r\n 0\/1737C98 | 1896 | COMMIT 1896\r\n(5 rows)\r\n<\/code><\/pre>\n<p>\u600e\u4e48\u6837\uff1f\u867d\u7136\u8f93\u51fa\u8868\u8fbe\u65b9\u5f0f\u6709\u70b9\u602a\uff0c\u4f46\u6539\u52a8\u8fd8\u662f\u80fd\u6e05\u695a\u5730\u63d0\u53d6\u51fa\u6765\u7684\u3002<\/p>\n<p>\u51fa\u529b\u7684\u529f\u80fd\u88ab\u63d2\u4ef6\u5316\u4e86\uff0c\u4e0a\u9762\u7684\u4f8b\u5b50\u662f\u4f7f\u7528\u9644\u5e26\u5728PostgreSQL\u6838\u5fc3\u4e2d\u7684\u793a\u4f8b\u63d2\u4ef6test_decoding\u3002<\/p>\n<h1>\u8f93\u51fa\u63d2\u4ef6<\/h1>\n<p>\u7ecf\u8fc7\u5728\u7f51\u4e0a\u641c\u7d22\u540e\uff0c\u76ee\u524d\u5df2\u7ecf\u53d1\u5e03\u4e86\u4ee5\u4e0b\u7684\u8f93\u51fa\u63d2\u4ef6\u3002<\/p>\n<h2>decorder_raw\uff0c\u4f5c\u8005\u662fmichaelpq\u3002<\/h2>\n<p>\u5b83\u4f1a\u4ee5\u76f8\u5f53SQL\u98ce\u683c\u8fdb\u884c\u8f93\u51fa\u3002\u4f7f\u7528\u4e0e\u4e0a\u8ff0\u76f8\u540c\u7684\u4f8b\u5b50\uff0c<\/p>\n<pre class=\"post-pre\"><code># SELECT * FROM pg_logical_slot_get_changes('rep_slot_2', NULL, NULL);\r\n location  | xid  |                           data\r\n-----------+------+-----------------------------------------------------------\r\n 0\/1737F60 | 1897 | INSERT INTO public.foo (a, b) VALUES (104, 'inserted');\r\n 0\/1739A80 | 1897 | DELETE FROM public.foo WHERE a = 81;\r\n 0\/1739B08 | 1897 | UPDATE public.foo SET a = 23, b = 'updated' WHERE a = 23;\r\n(3 rows)\r\n<\/code><\/pre>\n<p>\u8fd9\u4e2a\u6837\u5b50\u3002\u51e0\u4e4e\u5b8c\u7f8e\u5730\u518d\u73b0\u4e86\u3002\u53ef\u4ee5\u76f4\u63a5\u5c06\u5176\u4f5c\u4e3aSQL\u5bfc\u5165\u5230\u53e6\u4e00\u4e2a\u6570\u636e\u5e93\u4e2d\u3002<\/p>\n<h2>eulerto \u5236\u4f5c\u7684 wal2json<\/h2>\n<p>\u4f1a\u4ee5JSON\u683c\u5f0f\u8fdb\u884c\u8f93\u51fa\uff0c\u5c31\u50cf\u8fd9\u6837\u3002<\/p>\n<pre class=\"post-pre\"><code>[local] 18452 postgres=# SELECT * FROM pg_logical_slot_get_changes('rep_slot_3',\r\n NULL, NULL);\r\n location  | xid  |                           data\r\n-----------+------+-----------------------------------------------------------\r\n 0\/1739D20 | 1898 | {                                                        +\r\n           |      |         \"xid\": 1898,                                     +\r\n           |      |         \"change\": [\r\n 0\/1739D20 | 1898 |                 {                                        +\r\n           |      |                         \"kind\": \"insert\",                +\r\n           |      |                         \"schema\": \"public\",              +\r\n           |      |                         \"table\": \"foo\",                  +\r\n           |      |                         \"columnnames\": [\"a\", \"b\"],       +\r\n           |      |                         \"columntypes\": [\"int4\", \"text\"], +\r\n           |      |                         \"columnvalues\": [105, \"inserted\"]+\r\n           |      |                 }\r\n 0\/173B8B0 | 1898 |                 ,{                                       +\r\n           |      |                         \"kind\": \"delete\",                +\r\n           |      |                         \"schema\": \"public\",              +\r\n           |      |                         \"table\": \"foo\",                  +\r\n           |      |                         \"oldkeys\": {                     +\r\n           |      |                                 \"keynames\": [\"a\"],       +\r\n           |      |                                 \"keytypes\": [\"int4\"],    +\r\n           |      |                                 \"keyvalues\": [80]        +\r\n           |      |                         }                                +\r\n           |      |                 }\r\n 0\/173B8F8 | 1898 |                 ,{                                       +\r\n           |      |                         \"kind\": \"update\",                +\r\n           |      |                         \"schema\": \"public\",              +\r\n           |      |                         \"table\": \"foo\",                  +\r\n           |      |                         \"columnnames\": [\"a\", \"b\"],       +\r\n           |      |                         \"columntypes\": [\"int4\", \"text\"], +\r\n           |      |                         \"columnvalues\": [24, \"updated\"], +\r\n           |      |                         \"oldkeys\": {                     +\r\n           |      |                                 \"keynames\": [\"a\"],       +\r\n           |      |                                 \"keytypes\": [\"int4\"],    +\r\n           |      |                                 \"keyvalues\": [24]        +\r\n           |      |                         }                                +\r\n           |      |                 }\r\n 0\/173B9D0 | 1898 |         ]                                                +\r\n           |      | }\r\n(5 rows)\r\n<\/code><\/pre>\n<h2>decoderbufs \u7531 xstevens \u63d0\u4f9b<\/h2>\n<p>\u4f1a\u4ee5 Protocol Buffers \u683c\u5f0f\u8f93\u51fa\u3002\u5c1a\u672a\u7ecf\u8fc7\u9a8c\u8bc1\u3002<\/p>\n<h2>\u5eb7\u65b9\u7684\u74f6\u88c5\u6c34\u4ea7\u54c1 &#8211; \u7531Confluent Inc\u63d0\u4f9b<\/h2>\n<p>\u8fd9\u662f\u4e00\u4e2a\u80fd\u591f\u63d0\u53d6\u53d8\u66f4\u4fe1\u606f\u5e76\u5b58\u50a8\u5230Apache Kafka\u7684\u5de5\u5177\uff0c\u975e\u5e38\u68d2\uff01<\/p>\n<p>\u9605\u8bfb\u4ecb\u7ecd\u535a\u5ba2\u540e\uff0c\u6211\u53d1\u73b0\u6709\u4e00\u4e2a\u60f3\u6cd5\uff0c\u901a\u8fc7Kafka\u6765\u4f20\u64ad\u6570\u636e\u5230\u7f13\u5b58\u3001\u7528\u4e8e\u5206\u6790\u7684Hadoop\u3001\u4ee5\u53ca\u76d1\u63a7\u7b49\uff0c\u8fd9\u4e2a\u67b6\u6784\u975e\u5e38\u6709\u8da3\u3002\u4f46\u76ee\u524d\u8fd9\u4e2a\u529f\u80fd\u5c1a\u672a\u7ecf\u8fc7\u9a8c\u8bc1\u3002<\/p>\n<h1>\u5982\u4f55\u4f7f\u7528Logical Decoding<\/h1>\n<p>\u4e0d\u96be\u7684\u3002<\/p>\n<h2>PostgreSQL\u7684\u914d\u7f6e<\/h2>\n<p>\u5728postgresql.conf\u4e2d\uff0c<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">wal_level = logical<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">max_replication_slot \u306b1\u4ee5\u4e0a\u306e\u5024\u3092\u30bb\u30c3\u30c8<\/ul>\n<p>\u9700\u8981\u4fdd\u7559\u4e3a\u4fee\u6539\u751f\u6548\u3002\u8981\u4f7f\u66f4\u6539\u751f\u6548\uff0c\u9700\u8981\u91cd\u65b0\u542f\u52a8PostgreSQL\u3002<br \/>\n\u5982\u540e\u6587\u6240\u8ff0\uff0c\u5982\u679c\u5728\u8bfb\u53d6\u66f4\u6539\u4fe1\u606f\u65f6\u4f7f\u7528\u590d\u5236\u8fde\u63a5\uff0c\u5219\u8fd8\u9700\u4ee5\u4e0a\u8ff0\u4e4b\u5916\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">postgresql.conf\u306b\u3066max_wal_senders \u306b1\u4ee5\u4e0a\u306e\u5024\u3092\u30bb\u30c3\u30c8<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">pg_hba.conf\u306b\u30ec\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u63a5\u7d9a\u3067\u63a5\u7d9a\u3059\u308b\u30e6\u30fc\u30b6\u306e\u60c5\u5831\u3092\u8ffd\u52a0<\/ul>\n<p>\u9700\u8981\u3002<\/p>\n<h2>\u5b89\u88c5\u51fa\u529b\u63d2\u4ef6<\/h2>\n<p>\u5b89\u88c5\u65b9\u6cd5\u56e0\u63d2\u4ef6\u800c\u5f02\u3002\u5bf9\u4e8e\u9644\u5e26\u7684test_decoding\u63d2\u4ef6\uff0c\u9700\u8981\u4ecePostgreSQL\u6e90\u4ee3\u7801\u7684\u6839\u76ee\u5f55\u5f00\u59cb\u64cd\u4f5c\u3002<\/p>\n<pre class=\"post-pre\"><code>$ cd contrib\/test_decoding\r\n$ make\r\n# make insatll\r\n<\/code><\/pre>\n<p>\u53ef\u4ee5\u901a\u8fc7\u5b89\u88c5\u6765\u5b8c\u6210\u3002<\/p>\n<h2>\u521b\u5efa\u903b\u8f91\u590d\u5236\u69fd<\/h2>\n<p>\u6211\u4eec\u5c06\u901a\u8fc7\u903b\u8f91\u89e3\u7801\u521b\u5efa\u4e00\u4e2a\u63a5\u53e3\u6765\u8bfb\u53d6\u53d8\u66f4\u4fe1\u606f\u3002\u8bfb\u53d6\u7684\u65b9\u6cd5\u662f\uff0c<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">SQL<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u30ec\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u63a5\u7d9a<\/ul>\n<p>\u6709\u4e24\u79cd\u65b9\u6cd5\u53ef\u4ee5\u5b9e\u73b0\uff1a\u8fd9\u91cc\u8bb2\u89e3\u4f7f\u7528SQL\u7684\u60c5\u51b5\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528psql\u8fde\u63a5\u5230PostgreSQL\u6570\u636e\u5e93\u7684\u8d85\u7ea7\u7528\u6237\uff0c\u5e76\u6267\u884cpg_create_logical_replication_slot\u51fd\u6570\u3002<\/p>\n<pre class=\"post-pre\"><code>postgres=# SELECT * FROM pg_create_logical_replication_slot('rep_slot', 'test_decoding');\r\n<\/code><\/pre>\n<p>\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u4e2d\u56fd\u8a9e\u3067\u8a00\u3044\u63db\u3048\u307e\u3059\uff08\u4e00\u3064\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\uff09\uff1a<br \/>\n\u8be5\u51fd\u6570\u7684\u53c2\u6570\u662f\uff1a<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u4f5c\u6210\u3059\u308b\u8ad6\u7406\u30ec\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30fb\u30b9\u30ed\u30c3\u30c8\u306e\u540d\u524d<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u5229\u7528\u3059\u308b\u51fa\u529b\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u540d\u524d<\/ul>\n<p>\u9019\u662f\u3002 (Zh\u00e8 sh\u00ec.)<\/p>\n<h2>\u8bfb\u53d6\u53d8\u66f4\u4fe1\u606f<\/h2>\n<p>\u5982\u679c\u4f7f\u7528SQL\u8fdb\u884c\u8bfb\u53d6\uff0c\u9700\u8981\u83b7\u53d6\u66f4\u6539\u4fe1\u606f\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">pg_logical_slot_get_changes<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">pg_logical_slot_peek_changes<\/ul>\n<p>\u53ef\u4ee5\u901a\u8fc7\u4e24\u79cd\u7c7b\u578b\u7684\u51fd\u6570\u6765\u63d0\u53d6\u3002\u8fd9\u4e24\u8005\u7684\u533a\u522b\u5728\u4e8eget\u548cpeek\uff0c\u5c06\u53d8\u66f4\u4fe1\u606f\u89c6\u4e3a\u961f\u5217\uff0c\u5e76\u4ece\u961f\u5217\u4e2d\u63d0\u53d6\u4fe1\u606f\uff08get\uff09\uff0c\u6216\u8005\u5728\u4e0d\u63d0\u53d6\u7684\u60c5\u51b5\u4e0b\u8fdb\u884c\u68c0\u67e5\uff08peek\uff09\u3002<\/p>\n<p>\u4e24\u4e2a\u53c2\u6570\u76f8\u540c<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u8aad\u307f\u51fa\u3057\u5148\u306e\u8ad6\u7406\u30ec\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30fb\u30b9\u30ed\u30c3\u30c8\u306e\u540d\u524d<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u8aad\u307f\u51fa\u3057\u3092\u7d42\u3048\u308b\u30dd\u30a4\u30f3\u30c8(\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u30ed\u30b0\u306eID\u3067\u3042\u308bLSN\u3001\u3082\u3057\u304f\u306f\u884c\u6570\u3067\u6307\u5b9a\uff09<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u51fa\u529b\u30d7\u30e9\u30b0\u30a4\u30f3\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u3092key\u3068value\u3067\u6307\u5b9a<\/ul>\n<p>\u662f\u7684\u3002<\/p>\n<p>\u5047\u8bbe<\/p>\n<pre class=\"post-pre\"><code>postgres=# SELECT * FROM pg_logical_slot_get_changes('rep_slot', NULL, 10, 'include-timestamp', 'on');\r\n location  | xid  |                            data\r\n-----------+------+-------------------------------------------------------------\r\n 0\/1737F60 | 1897 | BEGIN 1897\r\n 0\/1737F60 | 1897 | table public.foo: INSERT: a[integer]:104 b[text]:'inserted'\r\n 0\/1739A80 | 1897 | table public.foo: DELETE: a[integer]:81\r\n 0\/1739B08 | 1897 | table public.foo: UPDATE: a[integer]:23 b[text]:'updated'\r\n 0\/1739BA0 | 1897 | COMMIT 1897 (at 2015-08-20 22:50:23.85002+09)\r\n 0\/1739D20 | 1898 | BEGIN 1898\r\n 0\/1739D20 | 1898 | table public.foo: INSERT: a[integer]:105 b[text]:'inserted'\r\n 0\/173B8B0 | 1898 | table public.foo: DELETE: a[integer]:80\r\n 0\/173B8F8 | 1898 | table public.foo: UPDATE: a[integer]:24 b[text]:'updated'\r\n 0\/173B9D0 | 1898 | COMMIT 1898 (at 2015-08-20 22:55:17.529238+09)\r\n(10 rows)\r\n<\/code><\/pre>\n<p>\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u4ece\u540d\u4e3arep_slot\u7684\u69fd\u4e2d\u8bfb\u53d610\u884c\u4fee\u6539\u884c\u3002\u540c\u65f6\uff0c\u901a\u8fc7\u7ed9\u8f93\u51fa\u63d2\u4ef6test_decoding\u63d0\u4f9binclude-timestamp = on\u9009\u9879\uff0c\u53ef\u4ee5\u8f93\u51fa\u63d0\u4ea4\u4fee\u6539\u65f6\u7684\u65f6\u95f4\u6233\u3002<\/p>\n<h2>\u8bf7\u7ed9\u4e88\u66f4\u8be6\u7ec6\u7684\u4f7f\u7528\u8bf4\u660e<\/h2>\n<p>\u8bf7\u53c2\u8003\u4ee5\u4e0b\u6587\u6863\uff1a<br \/>\nhttp:\/\/www.postgresql.jp\/document\/9.4\/html\/logicaldecoding.html<\/p>\n<h1>\u6700\u540e<\/h1>\n<p>\u4f60\u89c9\u5f97\u600e\u4e48\u6837\u5462\uff1f<\/p>\n<p>\u5982\u679c\u57289.4\u4e4b\u524d\u7684PostgreSQL\u4e2d\u5c1d\u8bd5\u505a\u7c7b\u4f3c\u7684\u4e8b\u60c5\uff0c<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Slony-I\u306e\u3088\u3046\u306a\u30c4\u30fc\u30eb\u3092\u4f7f\u3046<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">AP\u3082\u3057\u304f\u306f\u30c8\u30ea\u30ac\u3092\u4f7f\u3063\u3066\u3001\u66f4\u65b0\u5dee\u5206\u3092\u30c6\u30fc\u30d6\u30eb\u3068\u3057\u3066\u4fdd\u7ba1\u3057\u3066\u304a\u304f<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u30d0\u30c3\u30c1\u51e6\u7406\u3067DB\u304b\u3089\u30c7\u30fc\u30bf\u3092\u30c0\u30f3\u30d7\u3057\u3066\u3001\u66f4\u65b0\u5dee\u5206\u3092\u4f5c\u6210\u3057\u3066\u9023\u643a\u5148\u306b\u6e21\u3059<\/ul>\n<p>\u8fdb\u884c\u8fd9\u6837\u7684\u64cd\u4f5c\u9700\u8981\u82b1\u8d39\u4e86\u5f88\u591a\u529f\u592b\u3002<\/p>\n<p>\u6211\u8ba4\u4e3a\uff0c\u903b\u8f91\u89e3\u7801\u662f\u4e00\u79cd\u503c\u5f97\u671f\u5f85\u7684\u529f\u80fd\uff0c\u53ef\u4ee5\u8f7b\u677e\u4e14\u9ad8\u6548\u5730\u5c06\u6570\u636e\u4ecePostgreSQL\u8fde\u63a5\u5230\u5916\u90e8\u7cfb\u7edf\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6211\u5c06\u603b\u7ed3\u4e00\u4e0b\u6211\u8c03\u67e5\u4e86\u5173\u4e8e\u4ecePostgreSQL 9.4\u7248\u672c\u5f00\u59cb\u5b9e\u65bd\u7684\u903b\u8f91\u89e3\u7801\u7684\u7ed3\u679c\u3002\u4e2a\u4eba\u8ba4\u4e3a\u8fd9\u662f\u4e00\u4e2a\u975e\u5e38\u70ed\u95e8\u7684 [&hellip;]<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-47227","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u7ed9\u60a8\u4ecb\u7ecd\u4e00\u4e0bPostgreSQL\u7684\u903b\u8f91\u89e3\u7801\u529f\u80fd - Blog - Silicon Cloud<\/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:\/\/www.silicloud.com\/zh\/blog\/\u7ed9\u60a8\u4ecb\u7ecd\u4e00\u4e0bpostgresql\u7684\u903b\u8f91\u89e3\u7801\u529f\u80fd\u3002\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" 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