You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: ext.rs
    path of file: ./repos/cube/rust/cubesql/cubesql/src/compile/engine/information_schema/mysql
    
    the code of the file until where you have to start completion: use crate::{sql::ColumnType, transport::CubeColumn};

pub trait CubeColumnMySqlExt {
    fn get_data_type(&self) -> String;
    fn get_mysql_column_type(&self) -> String;
}

impl CubeColumnMySqlExt fo
    
    fn get_mysql_column_type(&self) -> String {
        match self.get_column_type() {
            ColumnType::Timestamp => "datetime".to_string(),
            ColumnType::Int64 => "int".to_string(),
            ColumnType::Double => "numeric".to_string(),
            // bool, boolean is an alias for tinyint(1)
            ColumnType::Boolean => "tinyint(1)".to_string(),
            _ => "varchar(255)".to_string(),
        }
    }