Welcome! Based on my experience, the first step should be compiling Impala in your development environment and reproducing the bug. It may take time since you may encounter a few errors. Feel free to reach out if you have any questions.
If you have compiled Impala successfully, you can look into common/function-registry/impala_functions.py and be/src/exprs/string-functions-ir.cc: - https://github.com/apache/impala/blob/3.3.0/common/function-registry/impala_functions.py#L568-L569 - https://github.com/apache/impala/blob/3.3.0/be/src/exprs/string-functions-ir.cc#L862 Cheers, Quanlong On Sun, Sep 1, 2019 at 11:02 AM feng guo <sgedward...@yahoo.com> wrote: > Hi everyone, > My name is Edward, I am a user of impala and interested in contribute back > to the project. I am trying fix this bug and wonder if anyone can give me > some direction. Maybe some reference for the code base component. Thank > you very much! > Best,Ed >
