Index
Creates a composite index. This returns a google.longrunning.Operation which may be used to track the status of the creation. The metadata for the operation will be the type IndexOperationMetadata. Auto-naming is currently not supported for this resource.
Properties
The fields supported by this index. For composite indexes, this is always 2 or more fields. The last field entry is always for the field path __name__. If, on creation, __name__ was not specified as the last field, it will be added automatically with the same direction as that of the last field defined. If the final field in a composite index is not directional, the __name__ will be ordered ASCENDING (unless explicitly specified). For single field indexes, this will always be exactly one entry with a field path equal to the field path of the associated field.
Indexes with a collection query scope specified allow queries against a collection that is the child of a specific document, specified at query time, and that has the same collection id. Indexes with a collection group query scope specified allow queries against all collections descended from a specific document, specified at query time, and that have the same collection id as this index.