Oracle 到 AnalyticDb for Pg
| 功能 | 说明 |
|---|---|
Schema Migration | If the target schema does not exist, BladePipe will automatically generate and execute CREATE statements based on the source metadata and the mapping rule. |
Full Data Migration | Migrate data by sequentially scanning data in tables and writing it in batches to the target database. |
Incremental Data Sync | Sync of common DML like INSERT, UPDATE, DELETE is supported. |
Data Verification and Correction | Verify all existing data. Optionally, you can correct the inconsistent data based on verification results. Scheduled DataTasks are supported. |
Subscription Modification | Add, delete, or modify the subscribed tables with support for historical data migration. For more information, see Modify Subscription. |
Position Resetting | Reset the position by timestamp to consume Oracle Redo Log in a past period again. |
Table Name Mapping | Support the mapping rules, namely, keeping the name the same as that in Source, converting the text to lowercase, converting the text to uppercase, truncating the name by "_digit" suffix. |
DDL Sync |
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Metadata Retrieval | Retrieve the target metadata with filtering conditions from the source table. |
高级功能
| 功能 | 说明 |
|---|---|
自动建字典 | 如果使用离线字典解析 Oracle Redo, 则在创建任务时自动创建字典 |
0 值时间处理 | 支持将 0 值时间设置成不同类型的值,防止写入对端报错 |
Scheduled Full Data Migration | For more information, see Create Scheduled Full Data DataJob. |
Custom Code | For more information, see Custom Code Processing, Debug Custom Code and Logging in Custom Code. |
Setting Target Primary Key | Change the primary key to another field to facilitate data aggregation and other operations. |
Data Filtering Conditions | Support data filtering using WHERE conditions, with SQL-92 as the SQL language. For more information, see Data Filtering. |
限制和注意点
| 限制项 | 说明 |
|---|---|
增量同步性能 | 因 Logminer 有性能上限,且 CloudCanal 未采用并行分析,所以以 3000 条变更/秒 为性能基准 |
数据类型 | 不支持 BLOB 及衍生类型 |
主键冲突处理 | PostgreSQL <= 9.4 或 Greenplum <= 6, 因不支持冲突掠过或覆盖,当大量主键冲突场景下,性能较低 |