OpenTenBase / OpenTenBase/TXSQL
扩展binlog的row image
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good first issue
- Dominant language
- C++
- Stars
- 337
- Forks
- 234
- PR merge metrics
- No merged PRs in 30d
Description
binlog在参数binlog_row_image为full时，会记录一个记录的完整镜像。比如update，会记录完整的前后镜像数据，有较多的冗余数据。增加一种binlog_row_image的格式，只记录原镜像及新镜像中的变化数据，以减少对存储空间的占用。
Contributor guide
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by tracing how binlog_row_image=full records update row images and where row-image formats are defined. Compare the old and new row data to determine how changed columns would be represented, then identify the compatibility and storage implications. Done means the new format is implemented and its behavior is covered by relevant binlog tests.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- databases
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100