How to do sql query in tarantool-c

[jobs-git]

Tarantool 2 supports sql query

[pgulutzan]

I don't see box_execute() in module.h, and don't see anything in
tarantool-c https://github.com/tarantool/tarantool-c description
suggesting that direct passing of SQL statements is possible.
This might be too vague to be actionable.