Is your feature request related to a problem? Please describe.
Trying to handle case where ENUM already exists

Describe the solution you'd like
Add IF NOT EXISTS clause

Describe alternatives you've considered
dropping and recreating an ENUM type is an option.

Additional context

CREATE TYPE "zone" IF NOT EXISTS AS ENUM ('us', 'anz', 'eu');

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Currently, the JDBC string containing the host name and port is hardcoded. For example, consider the connection string for MySQL:

https://github.com/sqlancer/sqlancer/blob/e62224edcb43fe421dc87601f75090739e34e595/src/sqlancer/mysql/MySQLProvider.java#L248

It would be desirable to make this configurable. We could provide an option to set the JDBC string for each DBMS. For example, for MySQL,