Release Notes
from：release/ver-2.6.0.24
to：release/ver-2.6.0.28
FIX BUGS:
fix: compatible v2.0 2.2 mdb file format and ignore blank (#17623)
fix:table does not exist if drop database then create database in schemaless (#17451)
fix: fix mode function behavior if multiple highest occurrence exist (#17452)
fix: fix rpc context freed in timer callback issue (#17447)
ENHANCEMENTS:
enh: supports online alter DB parameter minRows (#17390)