protected virtual SqlStatement GetGroupByClause(ColumnExpression columnExpression, QueryContext queryContext)
{
var sqlProvider = queryContext.DataContext.Vendor.SqlProvider;
if (columnExpression.Table.Alias != null)
{
return sqlProvider.GetColumn(sqlProvider.GetTableAlias(columnExpression.Table.Alias),
columnExpression.Name);
}
return sqlProvider.GetColumn(columnExpression.Name);
}
/// <summary>
/// Registers the ColumnExpression as returned by the SQL request.
/// </summary>
/// <param name="expression"></param>
/// <param name="dataRecordParameter"></param>
/// <param name="mappingContextParameter"></param>
/// <param name="builderContext"></param>
/// <returns></returns>
protected virtual Expression GetOutputValueReader(ColumnExpression expression,
ParameterExpression dataRecordParameter, ParameterExpression mappingContextParameter,
BuilderContext builderContext)
{
int valueIndex = RegisterOutputParameter(expression, builderContext);
Type storageType = expression.StorageInfo != null ? expression.StorageInfo.GetMemberType() : null;
return GetOutputValueReader(storageType ?? expression.Type, valueIndex, dataRecordParameter, mappingContextParameter);
}