## Proposed changes Issue Number: close #xxx For the latest published 2.1 version `2.1.5`: ``` max_be_exec_version=4; AGG_FUNCTION_NEW=2; ``` and `branch-2.1`: ``` max_be_exec_version=5; AGG_FUNCTION_NEW=2; ``` It will cause problem when upgrading. This PR fix the problem, set `AGG_FUNCTION_NEW` to `5`.