Junk databases tables schemas

[maetx777]

Hi! When I run utility, I will set up --database flag with database name, same from connStr But, on main.go line 229 you will check database name, otherwise too many schemas collected in the dbTables variable, and when I have some copies of my database (application, application_dev, application_test), names of tables from this databases has conflicts. See my change:

    var dbTables []string
    // parse or read tables
    if *sqlTable != "" {
        dbTables = strings.Split(*sqlTable, ",")
    } else {
        schemaTables, err := schema.TableNames(db)
        if err != nil {
            fmt.Print(au.Red(fmt.Sprintf("Error in fetching tables information from %s information schema from %s\n", *sqlType, *sqlConnStr)))
            os.Exit(1)
            return
        }
        for _, st := range schemaTables {
            //We need only one database schema <<<
            if st[0] != *sqlDatabase {
                continue
            }
            dbTables = append(dbTables, st[1]) // s[0] == sqlDatabase
        }
    }