public static async Task MergeAsync <T>(DbContext context, IList <T> entities, TableInfo tableInfo, OperationType operationType, Action <decimal> progress) where T : class
{
tableInfo.InsertToTempTable = true;
await tableInfo.CheckHasIdentityAsync(context).ConfigureAwait(false);
await context.Database.ExecuteSqlCommandAsync(SqlQueryBuilder.CreateTableCopy(tableInfo.FullTableName, tableInfo.FullTempTableName, tableInfo)).ConfigureAwait(false);
if (tableInfo.BulkConfig.SetOutputIdentity && tableInfo.HasIdentity)
{
await context.Database.ExecuteSqlCommandAsync(SqlQueryBuilder.CreateTableCopy(tableInfo.FullTableName, tableInfo.FullTempOutputTableName, tableInfo)).ConfigureAwait(false);
}
try
{
await InsertAsync(context, entities, tableInfo, progress).ConfigureAwait(false);
await context.Database.ExecuteSqlCommandAsync(SqlQueryBuilder.MergeTable(tableInfo, operationType)).ConfigureAwait(false);
if (tableInfo.BulkConfig.SetOutputIdentity && tableInfo.HasIdentity)
{
try
{
await tableInfo.UpdateOutputIdentityAsync(context, entities).ConfigureAwait(false);
}
finally
{
await context.Database.ExecuteSqlCommandAsync(SqlQueryBuilder.DropTable(tableInfo.FullTempOutputTableName)).ConfigureAwait(false);
}
}
}
finally
{
await context.Database.ExecuteSqlCommandAsync(SqlQueryBuilder.DropTable(tableInfo.FullTempTableName)).ConfigureAwait(false);
}
}