sqltoolsservice/src/Microsoft.SqlTools.ServiceLayer/ObjectExplorer/SmoModel/SqlHistoryTableQuerier.cs

//
// Copyright (c) Microsoft. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
//

using System;
using Microsoft.SqlServer.Management.Smo;

namespace Microsoft.SqlTools.ServiceLayer.ObjectExplorer.SmoModel
{
    /// <summary>
    /// Filters the history tables to only return ones related to the parent table
    /// </summary>
    internal partial class SqlHistoryTableQuerier : SmoQuerier
    {
        protected override bool PassesFinalFilters(SqlSmoObject parent, SqlSmoObject smoObject)
        {
            Table parentTable = parent as Table;
            Table historyTable = smoObject as Table;
            if (parentTable != null && historyTable != null)
            {
                try
                {
                    return (parentTable.HistoryTableID == historyTable.ID);
                }
                catch(Exception)
                {
                    //TODO: have a better filtering here. HistoryTable is not available for SQL 2014.
                    //and the property throws exception here
                }
            }
            return false;
        }
    }
}