Backport to branch(3.14) : Add the import process implementation for data loader

[feeblefakie]

This is an automated request for a manual backport of the following:

• Original PR: Add the import process implementation for data loader #2462
• Commit to backport: 2eacbbc

1. Resolve any conflicts that occur during the cherry-picking process.

git fetch origin &&
git checkout 3.14-pull-2462 &&
git cherry-pick --no-rerere-autoupdate -m1 2eacbbc584f21c7de60a14b5188d487d4ca6751c

2. Push the changes.
3. Merge this PR after all checks have passed.

Thank you!