{"id":101745,"date":"2026-09-07T13:09:41","date_gmt":"2026-09-07T05:09:41","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/101745.html"},"modified":"2026-09-07T13:09:41","modified_gmt":"2026-09-07T05:09:41","slug":"apache-paimon-%e5%ae%9e%e6%97%b6%e6%b9%96%e4%bb%93%e5%ae%9e%e6%88%98%ef%bc%88%e7%ac%ac-1-%e7%af%87%ef%bc%89%ef%bc%9a%e5%88%ab%e5%86%8d%e8%af%b4-paimon-%e5%8f%aa%e6%98%af%e8%a1%a8%e6%a0%bc%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/101745.html","title":{"rendered":"Apache Paimon \u5b9e\u65f6\u6e56\u4ed3\u5b9e\u6218\uff08\u7b2c 1 \u7bc7\uff09\uff1a\u522b\u518d\u8bf4 Paimon \u53ea\u662f\u8868\u683c\u5f0f\uff0c\u771f\u6b63\u503c\u94b1\u7684\u662f\u8ba9\u66f4\u65b0\u8fdb\u5165\u6570\u636e\u6e56"},"content":{"rendered":"

\u8ba2\u5355 CDC \u5df2\u7ecf\u843d\u5230\u5bf9\u8c61\u5b58\u50a8，Spark \u4e5f\u80fd\u67e5\u3002\u4e1a\u52a1\u7b2c\u4e8c\u5929\u8981\u770b\u8ba2\u5355\u5f53\u524d\u72b6\u6001，\u56e2\u961f\u624d\u53d1\u73b0\u540c\u4e00\u4e2a order_id \u6709\u5341\u51e0\u4e2a\u7248\u672c：CREATED\u3001PAID\u3001CANCELLED \u5168\u5728，\u54ea\u4e00\u6761\u624d\u662f\u73b0\u5728，\u5f97\u7531\u6bcf\u6761 SQL \u4e34\u65f6\u5224\u65ad\u3002<\/p>\n

\u628a\u6570\u636e\u5199\u6210 Parquet \u4e0d\u96be，\u7ed9\u6587\u4ef6\u8865\u4e0a Schema\u3001\u5206\u533a\u548c Snapshot \u4e5f\u4e0d\u96be\u3002\u771f\u6b63\u96be\u7684\u662f：\u4e0d\u628a\u5bf9\u8c61\u5b58\u50a8\u6539\u9020\u6210\u6570\u636e\u5e93，\u4ecd\u80fd\u6301\u7eed\u63a5\u6536 Update\/Delete，\u8ba9\u6279\u67e5\u8be2\u8bfb\u5230\u53ef\u4fe1\u5f53\u524d\u72b6\u6001，\u540c\u65f6\u8ba9\u6d41\u4efb\u52a1\u4ece\u63d0\u4ea4\u8fb9\u754c\u7ee7\u7eed\u6d88\u8d39\u3002<\/p>\n

Paimon \u7684\u5173\u952e\u5dee\u5f02\u4e0d\u662f\u53c8\u7ba1\u7406\u4e86\u4e00\u6279\u6587\u4ef6，\u800c\u662f\u7528 Bucket \u5185 LSM \u627f\u63a5\u4e3b\u952e\u66f4\u65b0，\u518d\u7528\u539f\u5b50 Snapshot \u628a\u5f53\u524d\u72b6\u6001\u3001\u6279\u91cf\u91cd\u7b97\u548c\u6d41\u5f0f\u589e\u91cf\u63a5\u5230\u540c\u4e00\u5f20\u6e56\u8868\u4e0a\u3002<\/p>\n

\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

\u540c\u4e00\u6279\u8ba2\u5355\u843d\u6e56，\u56db\u6761\u8def\u5f84\u627f\u62c5\u7684\u8d23\u4efb\u4e0d\u540c<\/h3>\n

\u5148\u56fa\u5b9a\u5171\u540c\u524d\u63d0：MySQL \u8ba2\u5355\u6301\u7eed\u4ea7\u751f Insert\u3001Update\u3001Delete；\u540c\u4e00\u4e3b\u952e\u53ef\u80fd\u4e71\u5e8f；\u5206\u949f\u7ea7\u53ef\u89c1\u5373\u53ef；Flink \u7ee7\u7eed\u6d88\u8d39\u53d8\u5316，Spark \u9700\u8981\u968f\u65f6\u91cd\u7b97；\u5e95\u5c42\u4f7f\u7528\u5171\u4eab\u6587\u4ef6\u7cfb\u7edf\u6216\u5bf9\u8c61\u5b58\u50a8\u3002\u673a\u5668\u89c4\u6a21\u3001\u5b9e\u9645\u541e\u5410\u548c SLA \u672a\u63d0\u4f9b，\u56e0\u6b64\u8fd9\u91cc\u53ea\u6bd4\u8f83\u6267\u884c\u8def\u5f84，\u4e0d\u6bd4\u8f83\u8dd1\u5206\u3002<\/p>\n\n\u8def\u5f84\u66f4\u65b0\u600e\u6837\u4fdd\u5b58\u5f53\u524d\u72b6\u6001\u7531\u8c01\u8ba1\u7b97\u6279\u6d41\u5982\u4f55\u5bf9\u9f50\u4e3b\u8981\u4ee3\u4ef7<\/tr>\n\n\n\n\n\n
\u666e\u901a Parquet \u8ffd\u52a0\u76ee\u5f55<\/td>\n\u6bcf\u6b21\u53d8\u5316\u7ee7\u7eed\u8ffd\u52a0<\/td>\n\u6bcf\u4e2a\u67e5\u8be2\u6309\u4e3b\u952e\u6392\u5e8f\u53bb\u91cd<\/td>\n\u53e6\u5efa\u6587\u4ef6\u53d1\u73b0\u3001\u4f4d\u70b9\u548c\u91cd\u653e\u89c4\u5219<\/td>\n\u903b\u8f91\u5206\u6563，\u5220\u9664\u3001\u4e71\u5e8f\u548c\u6062\u590d\u5bb9\u6613\u5404\u7b97\u4e00\u5957<\/td>\n<\/tr>\n
Paimon Append Table<\/td>\n\u4ee5\u8ffd\u52a0\u8bb0\u5f55\u4e3a\u4e3b<\/td>\n\u4e0a\u6e38\u6216\u67e5\u8be2\u8d1f\u8d23\u72b6\u6001\u5316<\/td>\nSnapshot \u63d0\u4f9b\u63d0\u4ea4\u8fb9\u754c，\u53ef\u6d41\u5f0f\u8bfb\u8ffd\u52a0\u6570\u636e<\/td>\n\u4e0d\u5b9a\u4e49\u4e3b\u952e\u65f6，\u4e0d\u80fd\u76f4\u63a5\u9760 Upsert \u63a5\u6536\u5b8c\u6574 Changelog<\/td>\n<\/tr>\n
Paimon Primary Key Table<\/td>\n\u540c\u4e00 Bucket \u5185\u5f62\u6210\u591a\u7ec4\u6709\u5e8f\u6587\u4ef6<\/td>\nLSM \u8bfb\u53d6\u4e0e Merge Engine \u5408\u5e76\u540c\u4e3b\u952e\u8bb0\u5f55<\/td>\n\u6279\u8bfb\u4e0e\u6d41\u8bfb\u56f4\u7ed5\u540c\u4e00\u7ec4 Snapshot \u63a8\u8fdb<\/td>\nCompaction\u3001Bucket\u3001Changelog \u548c\u4fdd\u7559\u7b56\u7565\u5fc5\u987b\u6cbb\u7406<\/td>\n<\/tr>\n
\u670d\u52a1\u578b\u6570\u636e\u5e93<\/td>\n\u6570\u636e\u5e93\u5185\u90e8\u5b8c\u6210\u4e3b\u952e\u66f4\u65b0<\/td>\n\u6570\u636e\u5e93\u8fd4\u56de\u5f53\u524d\u884c<\/td>\n\u589e\u91cf\u901a\u5e38\u901a\u8fc7\u65e5\u5fd7\u3001\u8ba2\u9605\u6216\u5bfc\u51fa\u94fe\u8def\u63d0\u4f9b<\/td>\n\u5728\u7ebf\u670d\u52a1\u5f3a，\u4f46\u5b58\u50a8\u6210\u672c\u3001\u591a\u5f15\u64ce\u91cd\u7b97\u548c\u5386\u53f2\u5f00\u653e\u6027\u662f\u53e6\u4e00\u5957\u53d6\u820d<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u8fd9\u5f20\u8868\u6ca1\u6709\u7edd\u5bf9\u51a0\u519b\u3002\u53ea\u4fdd\u5b58\u4e0d\u53ef\u53d8\u65e5\u5fd7，Paimon Append Table \u66f4\u7b80\u5355；\u9700\u8981\u6beb\u79d2\u7ea7\u70b9\u67e5\u548c\u9ad8\u5e76\u53d1\u63a5\u53e3，\u670d\u52a1\u578b\u6570\u636e\u5e93\u4ecd\u5e94\u4fdd\u7559；\u9700\u8981\u540c\u4e00\u4efd\u4f4e\u6210\u672c\u6570\u636e\u540c\u65f6\u627f\u63a5\u6301\u7eed\u66f4\u65b0\u3001\u6d41\u5f0f\u6d88\u8d39\u548c\u6279\u91cf\u91cd\u7b97，Primary Key Table \u624d\u4f53\u73b0\u51fa\u5dee\u5f02\u3002<\/p>\n

LSM \u6ca1\u6709\u6d88\u706d\u66f4\u65b0\u6210\u672c，\u53ea\u628a\u968f\u673a\u6539\u5199\u53d8\u6210\u987a\u5e8f\u8ffd\u52a0\u4e0e\u540e\u53f0\u5408\u5e76<\/h3>\n

Paimon 2.0 Primary Key Table \u6587\u6863 \u660e\u786e\u8bf4\u660e：\u4e00\u5f20\u8868\u6216\u4e00\u4e2a\u5206\u533a\u4f1a\u88ab\u62c6\u6210\u591a\u4e2a Bucket，\u6bcf\u4e2a Bucket \u5185\u90e8\u662f\u4e00\u68f5 LSM Tree\u3002Bucket \u662f\u6700\u5c0f\u8bfb\u5199\u5355\u5143，\u4e5f\u9650\u5236\u6700\u5927\u5904\u7406\u5e76\u884c\u5ea6\u3002<\/p>\n

\u65b0\u8bb0\u5f55\u4e0d\u662f\u53bb\u5bf9\u8c61\u5b58\u50a8\u91cc\u627e\u5230\u65e7\u884c\u5e76\u539f\u5730\u4fee\u6539\u3002\u5199\u5165\u5148\u8fdb\u5165\u5185\u5b58\u7f13\u51b2，\u6392\u5e8f\u540e\u5f62\u6210\u65b0\u7684 Sorted Run\u3002\u4e0d\u540c Sorted Run \u7684\u4e3b\u952e\u8303\u56f4\u53ef\u4ee5\u91cd\u53e0，\u4e5f\u53ef\u4ee5\u51fa\u73b0\u540c\u4e00\u4e2a\u4e3b\u952e；\u8bfb\u53d6\u65f6\u5fc5\u987b\u6309\u7167 Merge Engine \u548c\u8bb0\u5f55\u987a\u5e8f\u5408\u5e76\u3002<\/p>\n

CDC RowKind \/ \u4e1a\u52a1\u7248\u672c
\n\u2192 Partition \u4e0e Bucket \u8def\u7531
\n\u2192 \u5185\u5b58\u7f13\u51b2\u5e76\u6309\u4e3b\u952e\u6392\u5e8f
\n\u2192 Checkpoint \u5237\u51fa L0 Sorted Run
\n\u2192 Commit \u6c47\u603b Manifest \u53d8\u5316
\n\u2192 Snapshot \u6587\u4ef6\u63d0\u4ea4\u6210\u529f\u540e\u5168\u5c40\u53ef\u89c1
\n\u2192 \u8bfb\u53d6\u65f6\u5408\u5e76，\u6216\u7531 Compaction \/ Deletion Vector \u63d0\u524d\u6d88\u5316\u65e7\u7248\u672c<\/p>\n

\u8fd9\u6761\u94fe\u628a\u5bf9\u8c61\u5b58\u50a8\u4e0d\u64c5\u957f\u7684\u968f\u673a\u66f4\u65b0，\u8f6c\u6362\u6210\u8ffd\u52a0\u65b0\u6587\u4ef6\u3001\u63d0\u4ea4\u5143\u6570\u636e\u548c\u540e\u7eed\u5408\u5e76\u3002\u6536\u76ca\u662f\u5199\u5165\u53ef\u4ee5\u4fdd\u6301\u987a\u5e8f I\/O，\u4ee3\u4ef7\u5219\u5206\u6563\u5230\u4e09\u5904：Writer \u7684 Flush \u4e0e\u63d0\u4ea4\u3001\u540e\u53f0 Compaction\u3001Reader \u7684\u591a\u8def\u5f52\u5e76\u3002<\/p>\n

Table Mode \u6587\u6863 \u56e0\u6b64\u624d\u533a\u5206 MOR\u3001COW \u548c MOW\u3002MOR \u628a\u66f4\u591a\u6210\u672c\u7559\u7ed9\u8bfb\u53d6，COW \u628a\u5168\u91cf\u5408\u5e76\u653e\u8fdb\u5199\u5165，MOW \u7528 Deletion Vector \u6539\u5584\u8bfb\u53d6，\u4f46 L0 \u6587\u4ef6\u4ecd\u6709 Compaction \u540e\u624d\u53ef\u89c1\u7684\u8fb9\u754c\u3002\u6240\u8c13\u5b9e\u65f6\u66f4\u65b0\u4e0d\u662f\u514d\u8d39\u66f4\u65b0，\u800c\u662f\u53ef\u4ee5\u660e\u786e\u9009\u62e9\u6210\u672c\u7531\u8c01\u3001\u5728\u4ec0\u4e48\u65f6\u5019\u652f\u4ed8\u3002<\/p>\n

\u771f\u6b63\u7684\u53ef\u89c1\u6027\u5f00\u5173\u4e0d\u662f\u6587\u4ef6\u5199\u5b8c，\u800c\u662f Snapshot \u63d0\u4ea4\u6210\u529f<\/h3>\n

Paimon \u7684 Data File\u3001Manifest \u548c Snapshot \u4e0d\u662f\u540c\u4e00\u4e2a\u5c42\u6b21\u3002Data File \u4fdd\u5b58\u6570\u636e，Manifest \u63cf\u8ff0\u6587\u4ef6\u589e\u5220，Snapshot \u5f15\u7528\u4e00\u7ec4\u80fd\u591f\u5171\u540c\u89e3\u91ca\u8868\u72b6\u6001\u7684\u5143\u6570\u636e\u3002<\/p>\n

Snapshot \u683c\u5f0f\u8bf4\u660e \u7ed9\u51fa\u4e00\u4e2a\u5173\u952e\u4e8b\u5b9e：\u6bcf\u6b21 Commit \u751f\u6210\u4e00\u4e2a\u8fde\u7eed\u7f16\u53f7\u7684 Snapshot；\u5199\u5165\u65b9\u62a2\u5360\u4e0b\u4e00\u4e2a Snapshot ID，Snapshot \u6587\u4ef6\u6210\u529f\u5199\u5165\u540e，\u672c\u6b21\u63d0\u4ea4\u624d\u53ef\u89c1\u3002<\/p>\n

\u56fa\u5b9a\u5230 release-2.0.0，\u6700\u77ed\u6e90\u7801\u94fe\u662f：<\/p>\n

StoreSinkWrite \/ StoreSinkWriteImpl
\n\u2192 Committable \/ ManifestCommittable
\n\u2192 StoreCommitter
\n\u2192 FileStoreCommitImpl
\n\u2192 SnapshotCommit
\n\u2192 RenamingSnapshotCommit \u6216 CatalogSnapshotCommit<\/p>\n

FileStoreCommitImpl \u4f1a\u5728\u63d0\u4ea4\u524d\u68c0\u67e5\u5f85\u5220\u9664\u6587\u4ef6\u548c\u4fee\u6539\u8303\u56f4\u51b2\u7a81，\u518d\u901a\u8fc7 SnapshotCommit \u5b8c\u6210\u539f\u5b50\u63d0\u4ea4\u3002\u6587\u4ef6\u7cfb\u7edf\u63d0\u4ea4\u8def\u5f84\u4e2d\u7684 RenamingSnapshotCommit \u6700\u7ec8\u5c1d\u8bd5\u539f\u5b50\u5199\u5165 snapshot-<id>；\u6210\u529f\u540e\u66f4\u65b0 LATEST \u63d0\u793a\u3002<\/p>\n

LATEST \u53ea\u662f\u63d0\u793a\u6587\u4ef6，\u53ef\u80fd\u4e0d\u51c6\u786e\u3002\u8bfb\u53d6\u7aef\u5728\u63d0\u793a\u4e0d\u53ef\u4fe1\u65f6\u4ecd\u4f1a\u626b\u63cf Snapshot \u6587\u4ef6\u786e\u5b9a\u8fb9\u754c\u3002\u56e0\u6b64\u4e0d\u80fd\u628a\u76ee\u5f55\u91cc\u51fa\u73b0\u65b0 Data File\u3001LATEST \u88ab\u66f4\u65b0，\u6216 Flink \u67d0\u4e2a Subtask \u5df2\u5b8c\u6210，\u5f53\u4f5c\u6574\u5f20\u8868\u5df2\u63d0\u4ea4\u7684\u5145\u5206\u8bc1\u636e\u3002<\/p>\n

\u4e00\u7ec4\u4e71\u5e8f\u8ba2\u5355，\u80fd\u540c\u65f6\u9a8c\u8bc1\u4e09\u5c42\u6b63\u786e\u6027<\/h3>\n

\u4e0b\u9762\u662f\u4e00\u5957\u6700\u5c0f\u5b9e\u9a8c\u8bbe\u8ba1，\u4e0d\u662f\u751f\u4ea7\u6027\u80fd\u62a5\u544a\u3002<\/p>\n

Paimon：2.0.0
\n\u8ba1\u7b97\u5f15\u64ce：Flink 1.20
\n\u5b58\u50a8：\u672c\u5730\u6587\u4ef6\u7cfb\u7edf，\u4ec5\u7528\u4e8e\u9694\u79bb\u8bed\u4e49
\n\u8868\u6a21\u5f0f：Primary Key Table，\u9ed8\u8ba4 deduplicate \/ MOR
\n\u53d8\u5316\u53d8\u91cf：\u540c\u4e00 order_id \u7684\u8f93\u5165\u987a\u5e8f
\n\u672a\u9a8c\u8bc1：\u5bf9\u8c61\u5b58\u50a8\u5ef6\u8fdf\u3001\u5e76\u53d1 Writer\u3001\u6545\u969c\u6062\u590d\u548c\u751f\u4ea7\u541e\u5410<\/p>\n

\u5148\u521b\u5efa\u4e00\u5f20\u8ba2\u5355\u5f53\u524d\u72b6\u6001\u8868\u3002\u5b9e\u9a8c\u4f7f\u7528\u5355\u8c03\u4e1a\u52a1\u7248\u672c source_version，\u907f\u514d\u628a\u5904\u7406\u65f6\u95f4\u8bef\u5f53\u6210\u4e1a\u52a1\u987a\u5e8f\u3002<\/p>\n

CREATE<\/span> TABLE<\/span> orders (<\/span>
\n order_id BIGINT<\/span>,<\/span>
\n status<\/span> STRING,<\/span>
\n amount DECIMAL<\/span>(<\/span>18<\/span>,<\/span> 2<\/span>)<\/span>,<\/span>
\n source_version BIGINT<\/span>,<\/span>
\n PRIMARY<\/span> KEY<\/span> (<\/span>order_id)<\/span> NOT<\/span> ENFORCED
\n)<\/span> WITH<\/span> (<\/span>
\n 'bucket'<\/span> =<\/span> '4'<\/span>,<\/span>
\n 'sequence.field'<\/span> =<\/span> 'source_version'<\/span>
\n)<\/span>;<\/span><\/p>\n

\u5bf9\u540c\u4e00\u4e3b\u952e\u4f9d\u6b21\u63d0\u4ea4\u4e09\u6761\u6570\u636e，\u6700\u540e\u4e00\u6761\u6545\u610f\u8fdf\u5230：<\/p>\n

INSERT<\/span> INTO<\/span> orders VALUES<\/span> (<\/span>1001<\/span>,<\/span> 'CREATED'<\/span>,<\/span> 100.00<\/span>,<\/span> 1<\/span>)<\/span>;<\/span>
\nINSERT<\/span> INTO<\/span> orders VALUES<\/span> (<\/span>1001<\/span>,<\/span> 'PAID'<\/span>,<\/span> 100.00<\/span>,<\/span> 3<\/span>)<\/span>;<\/span>
\nINSERT<\/span> INTO<\/span> orders VALUES<\/span> (<\/span>1001<\/span>,<\/span> 'CANCELLED'<\/span>,<\/span> 100.00<\/span>,<\/span> 2<\/span>)<\/span>;<\/span><\/p>\n

\u6279\u8bfb\u7684\u9884\u671f\u7ed3\u679c\u4ecd\u5e94\u662f\u7248\u672c 3 \u7684 PAID\u3002\u82e5\u5220\u9664 sequence.field \u540e\u91cd\u590d\u5b9e\u9a8c，\u9ed8\u8ba4\u5408\u5e76\u987a\u5e8f\u4f9d\u8d56\u8f93\u5165\u987a\u5e8f，\u8fdf\u5230\u7684\u7248\u672c 2 \u53ef\u80fd\u6210\u4e3a\u6700\u7ec8\u884c\u3002\u8fd9\u4e00\u5bf9\u7167\u8bc1\u660e\u7684\u662f Sequence \u4e0e Merge Engine \u5982\u4f55\u51b3\u5b9a\u8868\u5185\u5f53\u524d\u72b6\u6001，\u4e0d\u8bc1\u660e Paimon \u6bd4\u5176\u4ed6\u7cfb\u7edf\u66f4\u5feb\u3002<\/p>\n

— \u89c2\u5bdf\u5bf9\u8c61：\u8868\u5185\u6700\u7ec8\u4e1a\u52a1\u72b6\u6001；\u53ea\u8bfb\u3002<\/span>
\n— \u6b63\u5e38\u4fe1\u53f7：1001 \u53ea\u8fd4\u56de\u4e00\u884c，source_version = 3\u3002<\/span>
\n— \u5f02\u5e38\u4fe1\u53f7：\u51fa\u73b0\u591a\u884c，\u6216\u6700\u7ec8\u7248\u672c\u4e0d\u662f 3\u3002<\/span>
\nSELECT<\/span> *<\/span>
\nFROM<\/span> orders
\nWHERE<\/span> order_id =<\/span> 1001<\/span>;<\/span><\/p>\n

\u63a5\u7740\u6838\u5bf9\u63d0\u4ea4\u8fb9\u754c：<\/p>\n

— \u89c2\u5bdf\u5bf9\u8c61：Snapshot \u63d0\u4ea4\u5e8f\u5217；\u53ea\u8bfb\u3002<\/span>
\n— \u6b63\u5e38\u4fe1\u53f7：snapshot_id \u8fde\u7eed，\u6700\u8fd1\u5199\u5165\u4ea7\u751f APPEND \u7c7b\u63d0\u4ea4\u3002<\/span>
\n— \u5b83\u4e0d\u80fd\u8bc1\u660e：\u8ba2\u5355\u6700\u7ec8\u72b6\u6001\u6b63\u786e\u3001\u4e0b\u6e38\u83b7\u5f97\u5b8c\u6574 UPDATE_BEFORE\u3002<\/span>
\nSELECT<\/span> snapshot_id,<\/span>
\n commit_user,<\/span>
\n commit_identifier,<\/span>
\n commit_kind,<\/span>
\n commit_time,<\/span>
\n total_record_count,<\/span>
\n changelog_record_count
\nFROM<\/span> orders$snapshots
\nORDER<\/span> BY<\/span> snapshot_id;<\/span><\/p>\n

\u6700\u540e\u68c0\u67e5\u7269\u7406\u6587\u4ef6：<\/p>\n

— \u89c2\u5bdf\u5bf9\u8c61：\u5f53\u524d Snapshot \u5f15\u7528\u7684\u6570\u636e\u6587\u4ef6；\u53ea\u8bfb\u3002<\/span>
\n— \u5224\u65ad\u76ee\u6807：\u540c\u4e00\u4e3b\u952e\u53ef\u80fd\u4ecd\u5b58\u5728\u4e8e\u4e0d\u540c Sorted Run，\u903b\u8f91\u4e00\u884c\u4e0d\u7b49\u4e8e\u7269\u7406\u4e00\u884c\u3002<\/span>
\n— \u6ce8\u610f：\u751f\u4ea7\u5927\u8868\u5e94\u9650\u5b9a Snapshot\u3001\u5206\u533a\u6216\u62bd\u6837\u8303\u56f4，\u907f\u514d\u9ad8\u6210\u672c\u5143\u6570\u636e\u626b\u63cf\u3002<\/span>
\nSELECT<\/span> *<\/span> FROM<\/span> orders$files;<\/span><\/p>\n

\u8fd9\u5957\u5b9e\u9a8c\u80fd\u591f\u8bc1\u660e\u4e09\u4ef6\u4e8b：\u4e1a\u52a1\u7248\u672c\u63a7\u5236\u4e71\u5e8f\u66f4\u65b0\u3001Snapshot \u662f\u63d0\u4ea4\u53ef\u89c1\u6027\u8fb9\u754c\u3001\u903b\u8f91\u5f53\u524d\u884c\u4e0e\u7269\u7406\u65e7\u7248\u672c\u53ef\u4ee5\u540c\u65f6\u5b58\u5728\u3002\u5b83\u4e0d\u80fd\u8bc1\u660e\u6d41\u5f0f\u4e0b\u6e38\u4e00\u5b9a\u5f97\u5230\u5b8c\u6574\u64a4\u56de，\u4e5f\u4e0d\u80fd\u8bc1\u660e\u67d0\u79cd Bucket \u6216 Compaction \u914d\u7f6e\u9002\u5408\u751f\u4ea7\u3002<\/p>\n

\u8868\u91cc\u662f 100，Snapshot \u4e5f\u6210\u529f，\u4e0b\u6e38\u4ecd\u53ef\u80fd\u7b97\u9519<\/h3>\n

\u6279\u8bfb\u5f97\u5230\u4e00\u884c\u6b63\u786e\u7684 PAID，\u53ea\u8bc1\u660e Primary Key Table \u7684\u5f53\u524d\u72b6\u6001\u6b63\u786e\u3002\u4e0b\u6e38\u82e5\u6309\u95e8\u5e97\u6c47\u603b\u91d1\u989d，\u66f4\u65b0 100 \u2192 80 \u65f6\u9700\u8981\u77e5\u9053\u65e7\u503c 100，\u624d\u80fd\u5148\u64a4\u56de\u518d\u52a0\u5165 80\u3002<\/p>\n

Paimon \u9ed8\u8ba4 changelog-producer=none \u4e0d\u989d\u5916\u4fdd\u5b58\u5b8c\u6574\u65e7\u503c\u53d8\u5316；Flink \u53ef\u80fd\u9700\u8981 Normalize State \u8bb0\u4f4f\u6bcf\u4e2a\u4e3b\u952e\u7684\u65e7\u503c\u3002input\u3001lookup \u548c full-compaction \u53ef\u4ee5\u5728\u4e0d\u540c\u524d\u63d0\u4e0b\u63d0\u4f9b\u66f4\u5b8c\u6574\u7684 Changelog，\u5374\u4f1a\u589e\u52a0\u6587\u4ef6\u3001\u72b6\u6001\u6216 Compaction \u6210\u672c\u3002<\/p>\n

\u56e0\u6b64\u9700\u8981\u5206\u5f00\u9a8c\u6536：<\/p>\n

\u6e90\u4e8b\u4ef6\u5b8c\u6574
\n\u2260 Checkpoint \u5bf9\u5e94 Snapshot \u5df2\u63d0\u4ea4
\n\u2260 \u8868\u5185\u5f53\u524d\u72b6\u6001\u6b63\u786e
\n\u2260 \u4e0b\u6e38\u6536\u5230\u5b8c\u6574 Changelog
\n\u2260 \u6545\u969c\u6062\u590d\u540e\u4e1a\u52a1\u7ed3\u679c\u8fde\u7eed<\/p>\n

\u5b8c\u6574 Changelog \u7684\u9009\u62e9\u548c\u4ee3\u4ef7\u4f1a\u5728\u7cfb\u5217\u7b2c 03 \u7bc7\u5355\u72ec\u5c55\u5f00\u3002\u672c\u7bc7\u53ea\u4fdd\u7559\u8fb9\u754c：\u8868\u5185\u72b6\u6001\u6b63\u786e\u4e0d\u80fd\u66ff\u4e0b\u6e38\u8ba1\u7b97\u6b63\u786e\u4f5c\u8bc1\u3002<\/p>\n

Paimon \u503c\u5f97\u8fdb\u5165\u67b6\u6784\u7684\u4fe1\u53f7\u53ea\u6709\u4e09\u4e2a<\/h3>\n

\u7b2c\u4e00，\u540c\u4e00\u4efd\u6570\u636e\u65e2\u6709 Update\/Delete，\u53c8\u8981\u7559\u5728\u4f4e\u6210\u672c\u5171\u4eab\u5b58\u50a8\u4e2d\u3002\u7b2c\u4e8c，Flink \u9700\u8981\u6301\u7eed\u6d88\u8d39\u53d8\u5316，Spark \u6216\u5176\u4ed6\u5f15\u64ce\u53c8\u8981\u57fa\u4e8e\u540c\u4e00\u63d0\u4ea4\u70b9\u6279\u91cf\u91cd\u7b97\u3002\u7b2c\u4e09，\u56e2\u961f\u613f\u610f\u6cbb\u7406 Bucket\u3001Compaction\u3001Snapshot \u4fdd\u7559\u548c Changelog，\u800c\u4e0d\u662f\u628a\u5b83\u4eec\u5f53\u6210\u9ed8\u8ba4\u53c2\u6570\u3002<\/p>\n

\u4e0d\u6ee1\u8db3\u8fd9\u4e9b\u6761\u4ef6\u65f6，\u9009\u62e9\u5e94\u66f4\u7b80\u5355：<\/p>\n

    \n
  • \u53ea\u6709\u4e0d\u53ef\u53d8\u4e8b\u4ef6，\u4f18\u5148\u8bc4\u4f30 Append Table；<\/li>\n
  • \u53ea\u6709\u5728\u7ebf\u4e3b\u952e\u67e5\u8be2\u548c\u4e8b\u52a1\u5199\u5165，\u4fdd\u7559 OLTP \u6216\u670d\u52a1\u578b\u6570\u636e\u5e93；<\/li>\n
  • \u6307\u6807\u5b8c\u5168\u56fa\u5b9a\u4e14\u8981\u6c42\u6781\u4f4e\u8bfb\u5ef6\u8fdf，\u9884\u8ba1\u7b97\u548c\u7f13\u5b58\u53ef\u80fd\u66f4\u76f4\u63a5；<\/li>\n
  • \u65e0\u6cd5\u627f\u62c5 Compaction\u3001\u6587\u4ef6\u6570\u548c Snapshot \u751f\u547d\u5468\u671f\u6cbb\u7406，\u4e0d\u8981\u53ea\u56e0\u5b9e\u65f6\u6e56\u4ed3\u56db\u4e2a\u5b57\u5f15\u5165 Paimon\u3002<\/li>\n<\/ul>\n

    Paimon \u66ff\u6389\u7684\u4e0d\u662f Flink\u3001Spark \u6216\u6570\u636e\u5e93，\u800c\u662f\u540c\u4e00\u4efd\u66f4\u65b0\u4e8b\u5b9e\u4e3a\u4e86\u6d41\u8ba1\u7b97\u3001\u6279\u91cf\u91cd\u7b97\u548c\u5386\u53f2\u5b58\u50a8\u88ab\u8feb\u7ef4\u62a4\u591a\u5957\u4e0d\u4e00\u81f4\u526f\u672c\u7684\u90a3\u90e8\u5206\u590d\u6742\u5ea6\u3002<\/p>\n

    \u6587\u4ef6\u80fd\u88ab\u5f88\u591a\u5f15\u64ce\u8bfb\u53d6，\u53ea\u8bf4\u660e\u5b83\u8db3\u591f\u5f00\u653e；\u66f4\u65b0\u80fd\u5728\u540c\u4e00\u4e2a Snapshot \u5e8f\u5217\u91cc\u88ab\u63d0\u4ea4\u3001\u5408\u5e76\u3001\u91cd\u7b97\u548c\u7ee7\u7eed\u6d88\u8d39，\u624d\u662f Paimon \u771f\u6b63\u503c\u94b1\u7684\u5730\u65b9\u3002<\/p>\n

    \u9762\u8bd5\u8868\u8fbe\u4e3b\u7ebf<\/h3>\n

    \u9762\u8bd5\u65f6\u4e0d\u8981\u505c\u5728\u201cPaimon \u652f\u6301\u6d41\u6279\u4e00\u4f53\u201d\u3002\u5148\u8bf4 Primary Key Table \u5982\u4f55\u5728 Bucket \u5185\u4ee5 LSM \u63a5\u6536\u66f4\u65b0，\u518d\u8bf4 Snapshot \u5982\u4f55\u5f62\u6210\u539f\u5b50\u53ef\u89c1\u8fb9\u754c，\u6700\u540e\u4e3b\u52a8\u8865\u4e0a Compaction\u3001Changelog \u4e0e\u5728\u7ebf\u70b9\u67e5\u4e0d\u662f\u514d\u8d39\u80fd\u529b\u3002\u8fd9\u6837\u56de\u7b54\u7684\u662f\u673a\u5236\u3001\u6536\u76ca\u4e0e\u4ee3\u4ef7，\u800c\u4e0d\u662f\u4ea7\u54c1\u53e3\u53f7\u3002<\/p>\n

    Java \u628a\u4e00\u6b21\u5199\u5165\u771f\u6b63\u63d0\u4ea4\u6210 Snapshot<\/h3>\n

    \u4f9d\u8d56 paimon-flink-1.20:2.0.0，\u53c2\u6570\u4f20\u672c\u5730\u6216\u5bf9\u8c61\u5b58\u50a8 Warehouse\u3002\u7a0b\u5e8f\u7b49\u5f85 TableResult，\u5931\u8d25\u4f1a\u76f4\u63a5\u629b\u51fa，\u800c\u4e0d\u662f\u628a SQL \u5df2\u63d0\u4ea4\u5f53\u6210\u6570\u636e\u5df2\u53ef\u89c1\u3002<\/p>\n

    import<\/span> org.<\/span>apache.<\/span>flink.<\/span>table.<\/span>api.<\/span><\/span>EnvironmentSettings<\/span><\/span>;<\/span>
    \nimport<\/span> org.<\/span>apache.<\/span>flink.<\/span>table.<\/span>api.<\/span><\/span>TableEnvironment<\/span><\/span>;<\/span>
    \nimport<\/span> org.<\/span>apache.<\/span>flink.<\/span>table.<\/span>api.<\/span><\/span>TableResult<\/span><\/span>;<\/span><\/p>\n

    public<\/span> final<\/span> class<\/span> PaimonSnapshotWrite<\/span> {<\/span>
    \n public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[<\/span>]<\/span> args)<\/span> throws<\/span> Exception<\/span> {<\/span>
    \n if<\/span> (<\/span>args.<\/span>length !=<\/span> 1<\/span>)<\/span> throw<\/span> new<\/span> IllegalArgumentException<\/span>(<\/span>"warehouse is required"<\/span>)<\/span>;<\/span>
    \n TableEnvironment<\/span> t =<\/span> TableEnvironment<\/span>.<\/span>create<\/span>(<\/span>
    \n EnvironmentSettings<\/span>.<\/span>newInstance<\/span>(<\/span>)<\/span>.<\/span>inBatchMode<\/span>(<\/span>)<\/span>.<\/span>build<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
    \n t.<\/span>executeSql<\/span>(<\/span>"CREATE CATALOG p WITH ('type'='paimon','warehouse'='"<\/span> +<\/span> args[<\/span>0<\/span>]<\/span> +<\/span> "')"<\/span>)<\/span>;<\/span>
    \n t.<\/span>executeSql<\/span>(<\/span>"USE CATALOG p"<\/span>)<\/span>;<\/span>
    \n t.<\/span>executeSql<\/span>(<\/span>"CREATE DATABASE IF NOT EXISTS demo"<\/span>)<\/span>;<\/span>
    \n t.<\/span>executeSql<\/span>(<\/span>"CREATE TABLE IF NOT EXISTS demo.orders (id BIGINT, status STRING, ver BIGINT, "<\/span>
    \n +<\/span> "PRIMARY KEY (id) NOT ENFORCED) WITH ('bucket'='4','sequence.field'='ver')"<\/span>)<\/span>;<\/span>
    \n TableResult<\/span> write =<\/span> t.<\/span>executeSql<\/span>(<\/span>
    \n "INSERT INTO demo.orders VALUES (1001,'PAID',3),(1001,'CANCELLED',2)"<\/span>)<\/span>;<\/span>
    \n write.<\/span>await<\/span>(<\/span>)<\/span>;<\/span>
    \n t.<\/span>executeSql<\/span>(<\/span>"SELECT * FROM demo.orders$snapshots ORDER BY snapshot_id"<\/span>)<\/span>.<\/span>print<\/span>(<\/span>)<\/span>;<\/span>
    \n }<\/span>
    \n}<\/span><\/p>\n

    executeSql(INSERT) \u8fdb\u5165 Flink Sink，\u6700\u7ec8\u6cbf StoreSinkWrite \u2192 StoreCommitter \u2192 FileStoreCommitImpl \u2192 SnapshotCommit \u63d0\u4ea4；await() \u5f02\u5e38\u662f\u5199\u5165\u5931\u8d25\u4fe1\u53f7，$snapshots \u6709\u65b0\u884c\u624d\u8bc1\u660e\u5f62\u6210\u53ef\u89c1\u63d0\u4ea4\u3002\u8be5\u793a\u4f8b\u9a8c\u8bc1\u63d0\u4ea4\u4e0e\u4e71\u5e8f\u8bed\u4e49，\u4e0d\u4ee3\u8868\u751f\u4ea7\u541e\u5410\u3002<\/p>\n

    Paimon \u4e0d\u662f\u666e\u901a Parquet \u76ee\u5f55\u52a0\u5143\u6570\u636e\u3002Primary Key Table \u5728 Bucket \u5185\u7528 LSM \u628a\u968f\u673a\u66f4\u65b0\u8f6c\u6210\u6709\u5e8f\u8ffd\u52a0，\u7531 Merge Engine \u5f97\u5230\u5f53\u524d\u72b6\u6001，\u518d\u901a\u8fc7\u539f\u5b50 Snapshot \u7edf\u4e00\u6279\u8bfb\u4e0e\u6d41\u8bfb\u8fb9\u754c\u3002\u4ee3\u4ef7\u662f Compaction\u3001Bucket\u3001Changelog \u548c Snapshot \u751f\u547d\u5468\u671f\u5fc5\u987b\u6cbb\u7406，\u5b83\u4e5f\u4e0d\u66ff\u4ee3 OLTP \u4e0e\u5728\u7ebf\u67e5\u8be2\u6570\u636e\u5e93\u3002<\/p>\n

    \u5b98\u65b9\u8d44\u6599<\/h3>\n
      \n
    • Apache Paimon 2.0 Documentation<\/li>\n
    • Primary Key Table<\/li>\n
    • Append Table<\/li>\n
    • Table Mode<\/li>\n
    • Sequence Field and RowKind<\/li>\n
    • Snapshot Specification<\/li>\n
    • System Tables<\/li>\n
    • Apache Paimon release-2.0.0<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

      \u8ba2\u5355 CDC \u5df2\u7ecf\u843d\u5230\u5bf9\u8c61\u5b58\u50a8，Spark \u4e5f\u80fd\u67e5\u3002\u4e1a\u52a1\u7b2c\u4e8c\u5929\u8981\u770b\u8ba2\u5355\u5f53\u524d\u72b6\u6001，\u56e2\u961f\u624d\u53d1\u73b0\u540c\u4e00\u4e2a order_id \u6709\u5341\u51e0\u4e2a\u7248\u672c：CREATED\u3001PAID\u3001CANCELLED \u5168\u5728，\u54ea\u4e00\u6761\u624d\u662f\u73b0\u5728，\u5f97\u7531\u6bcf\u6761 SQL \u4e34\u65f6\u5224\u65ad\u3002
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