[Enhancement] drop multi tables in one drop stmt.

[dataroaring]

Search before asking

• I had searched in the issues and found no similar issues.

Description

drop table t1, t2. does not work.

Solution

make it works.

Are you willing to submit PR?

• Yes I am willing to submit a PR!

Code of Conduct

• I agree to follow this project's Code of Conduct

[wzymumon]

please assign to me