public PreparedBatch prepareBatch(String sql) {
        return prepareBatch((CharSequence) sql);
    }
Prepare a batch to execute. This is for efficiently executing more than one
of the same statements with different parameters bound. Takes a string argument for backwards compatibility reasons.

@param sql the batch SQL.
@return a batch which can have "statements" added.
@see Handle#prepareBatch(CharSequence)
core/src/main/java/org/jdbi/v3/core/Handle.java