[server] Support sequence groups in default and agg merge engine - #4130

[server] Support sequence groups in default and agg merge engine#4130

Kaixuan-Duan wants to merge 2 commits into

apache:mainapache/fluss:mainfrom

Kaixuan-Duan:default-sequence-groupsKaixuan-Duan/fluss:default-sequence-groupsCopy head branch name to clipboard