writer的presql在reader报错时仍然可以执行
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- Dominant language
- Java
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Description
例如配置从某数据源提取数据写入mysql,writer的presql配置为truncate table;当reader报错时,presql仍然会执行,而不是reader执行完后再执行writer
Contributor guide
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Research direction
No files or tests are identified. Trace DataX's reader and writer execution flow, focusing on when the writer's preSQL is invoked relative to reader failure. Done means a reader error no longer allows the writer preSQL to execute prematurely, with the intended ordering covered by a regression test.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java, sql
- Domain
- data-engineering
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100