Google Drive
| 功能 | 说明 |
|---|---|
结构迁移 | 如目标不存在所选表，则自动根据源端元数据，结合映射生成对端创建语句并执行创建 |
全量数据迁移 | 逻辑迁移，通过顺序扫描表数据，将数据分批写入到对端数据库 |
修改订阅 | 新增、删除、修改订阅表，支持历史数据迁移，文档：修改订阅 |
表名映射 | 支持 映射为别名, 和源端保持一致, 转小写, 转大写, 以'_数字'后缀截取 |
高级功能
| 功能 | 说明 |
|---|---|
Handling of Zero Value for Time | Allow setting zero value for time to different data types to prevent errors when writing to the Target. |
表格检索范围 | 表格的数据检索范围（A1 表示法或 R1C1 表示法） |
自定义代码 | 文档1：创建自定义代码任务 |
限制和注意点
| 限制项 | 说明 |
|---|---|
Primary Key Conflict Handling | PostgreSQL <= 9.4 or Greenplum <= 6 does not support conflict skipping or replacement. Performance may be affected when there are a large number of primary key conflicts. |
前置条件
| 条件 | 说明 |
|---|---|
Permissions for Account | Required permissions include SELECT, INSERT, DELETE, UPDATE, and common DDL permissions. |
Port Preparation | Allow the migration and sync node (Worker) to connect to the PostgreSQL / Greenplum / Aliyun AnalyticDB for PostgreSQL port (e.g., port 5432). |
任务参数
| 参数名称 | 说明 |
|---|---|
keyConflictStrategy | Strategy for handling primary key conflicts during write in Incremental DataTask:
|
dstWholeReplace | Convert INSERT and UPDATE operations into full row replacement in the Target. |
enableTimeZoneProcess | Enable time zone conversion to datetime fields. |
timezone | Target time zone, e.g., +08:00, Asia/Shanghai, America/New_York. |
defaultZeroDate | Default value for replacing '0000-00-00 00:00:00' / '0000-00-00' values. Optional values include:
|
caseSensitive | Case sensitivity strategy for SQL statements, including:
|
writeStrategy | Strategy of writing data to the Target, including:
|
defaultGisSRID | Set the SRID for GIS data types. |
Tips: 通用参数配置请参考 通用参数及功能