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@PublicEvolving
public interface Catalog {
    /**
     * Get the procedure. procedure name should be handled in a case insensitive way.
     *
     * @param procedurePath path of the procedure
     * @return the requested function
     * @throws ProcedureNotExistException if the function does not exist in the catalog
     * @throws CatalogException in case of any runtime exception
     */
   default Procedure getProcedure(ObjectPath procedurePath)
            throws ProcedureNotExistException, CatalogException {
      throw new UnsupportedOperationException(String.format("getProcedure is not implemented for %s.", this.getClass()));     
   }

   /**
     * List the names of all procedures in the given database. An empty list is returned if no procedure. 
     *
     * @param dbName name of the database.
     * @return a list of the names of the procedures in this database
     * @throws DatabaseNotExistException if the database does not exist
     * @throws CatalogException in case of any runtime exception
     */
    default List<String> listFunctionslistProcedures(String dbName) throws DatabaseNotExistException, CatalogException {
       throw new UnsupportedOperationException(String.format("listFunctionslistProcedures is not implemented for %s.", this.getClass()));    
    }
 }