private InternalIndexBuilder SetIndexFilter(InternalIndexBuilder indexBuilder, bool columnNameChanged = false)
{
// TODO: compare with a cached filter to avoid overriding if it was set by a different convention
var index = indexBuilder.Metadata;
if (index.IsUnique &&
index.SqlServer().IsClustered != true &&
index.Properties
.Any(property => property.IsColumnNullable()))
{
if (columnNameChanged ||
index.SqlServer().Filter == null)
{
indexBuilder.SqlServer(ConfigurationSource.Convention).HasFilter(CreateIndexFilter(index));
}
}
else
{
if (index.SqlServer().Filter != null)
{
indexBuilder.SqlServer(ConfigurationSource.Convention).HasFilter(null);
}
}
return(indexBuilder);
}
/// <summary>
/// This is an internal API that supports the Entity Framework Core infrastructure and not subject to
/// the same compatibility standards as public APIs. It may be changed or removed without notice in
/// any release. You should only use it directly in your code with extreme caution and knowing that
/// doing so can result in application failures when updating to a new Entity Framework Core release.
/// </summary>
public virtual InternalIndexBuilder Apply(InternalIndexBuilder indexBuilder)
{
if (indexBuilder.Metadata.DeclaringEntityType.GetAllBaseTypesInclusive().Any(et => et.SqlServer().IsMemoryOptimized))
{
indexBuilder.SqlServer(ConfigurationSource.Convention).IsClustered(false);
}
return(indexBuilder);
}