import java.sql.*;
public class DescLobsterTables {
  public static void main(String[] a) throws Exception {
    Class.forName("com.mysql.cj.jdbc.Driver");
    for (String db : new String[]{"ylrz_saas","ylrz_saas_tenant_1"}) {
      Connection c = DriverManager.getConnection("jdbc:mysql://cq-cdb-8fjmemkb.sql.tencentcdb.com:27220/"+db+"?allowMultiQueries=true","root","Ylrz_1q2w3e4r5t6y");
      System.out.println("=== "+db+" ===");
      ResultSet rs = c.getMetaData().getColumns(null, db, "company_workflow_lobster", "visible_company_ids");
      System.out.println("visible_company_ids meta: "+rs.next());
      rs = c.createStatement().executeQuery("SHOW COLUMNS FROM company_workflow_lobster LIKE 'visible_company_ids'");
      System.out.println("show columns: "+rs.next());
      c.close();
    }
  }
}