He Wang

refactor cutover for MySQL 8.x rename feature && support OceanBase

2

## A Pull Request should be associated with an Issue. Close #1433 Close #1427 ### Description This PR is based on #715 by @shlomi-noach. There is a new option `--oceanbase`...

https://github.com/github/gh-ost/pull/715 once tried to introduce a simpler cut over logic, but it was not merged. Now our team is developing a MySQL compatible binlog service of OceanBase database called OceanBase...

Remove the dependency on postgresql for table default values

1

### Self Checks - [x] I have searched for existing issues [search for existing issues](https://github.com/langgenius/dify/issues), including closed ones. - [x] I confirm that I am using English to submit this...

Remove postgresql-specific default values in model definition

4

# Summary Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change....

# Summary Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change....

### Self Checks - [x] I have searched for existing issues [search for existing issues](https://github.com/langgenius/dify/issues), including closed ones. - [x] I confirm that I am using English to submit this...

make flask migration models compatible to both postgresql and mysql

1

# Summary Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change....

### Describe your use case Need a command line tool to start a job to migrate data to OceanBase using Flink Jdbc Connector. ### Describe the solution you'd like Construct...

[Enhancement]: Add support for normal 'INSERT' and 'UPDATE' statement

1

### Description INSERT and UPDATE statements may have better performance than UPSERT in many cases.