[feat][jdbc]init column info in client by Paddy0523 · Pull Request #1280 · DTStack/chunjun

Purpose of this pull request

To ensure that the serializer works correctly, the DataType needs to be confirmed before the client generates the TypeInfomation

Which issue you fix

Fixes # (issue).

Checklist:

  • I have executed the 'mvn spotless:apply' command to format my code.
  • I have a meaningful commit message (including the issue id, the template of commit message is '[label-type-#issue-id][fixed-module] a meaningful commit message.')
  • I have performed a self-review of my own code.
  • I have commented my code, particularly in hard-to-understand areas.
  • I have made corresponding changes to the documentation.
  • I have added tests that prove my fix is effective or that my feature works.
  • New and existing unit tests pass locally with my changes.
  • I have checked my code and corrected any misspellings.
  • My commit is only one. (If there are multiple commits, you can use 'git squash' to compress multiple commits into one.)