Hi,
We want to add constraint to the length of database name, as most
popular database systems have such constraint as well, for example the
length of database name in Mysql shall not exceed 64. Currently, the
maximum length of database name, including "root.", is *64* and it is
immutable. Such constraint can help avoid some bugs of database and region
management, since we use database names in the directory name, which shall
not exceed the max name length defined by file system.
best regards
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Yukun Zhou, Tsinghua University
