/// <summary>
/// The problem: we want to cache queries, but the StructuredQueries contain GUIDs that vary from call to call.
/// The CachingQuerySqlBuilderKey happily handles this via StructuredQuery.CacheKeyToken. However, the result contains
/// references back to the original query. And stuff down stream relies on having the correct GUIDs in the referenced columns.
/// The solution: we take a shallowing copy of the result, and substutite in the columns from our current query.
/// </summary>
internal static QueryBuild MutateResultToMatchCurrentQuery(QueryBuild queryBuild, StructuredQuery originalQuery, StructuredQuery currentQuery)
{
if (queryBuild == null)
{
throw new ArgumentNullException("queryBuild");
}
if (originalQuery == null)
{
throw new ArgumentNullException("originalQuery");
}
if (currentQuery == null)
{
throw new ArgumentNullException("currentQuery");
}
// Clone result
QueryBuild result = queryBuild.ShallowClone();
result.Columns = MutateColumnList(result.Columns, originalQuery.SelectColumns, currentQuery.SelectColumns);
result.AggregateColumns = MutateColumnList(result.AggregateColumns, originalQuery.SelectColumns, currentQuery.SelectColumns);
return(result);
}