Introduce the logic of splitting tasks based on file size when reading CoW #17729
Description
Task Description
What needs to be done:
When reading the cow table, set FileFormat#isSplitable to true
Why this task is needed:
For overly large single files, we can use multiple concurrent tasks to read them, thereby reducing the overall job reading time consumption
Task Type
Performance optimization
Related Issues
Parent feature issue: (if applicable )
Related issues:
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