indexUnusedReasons property

List<IndexUnusedReason>? indexUnusedReasons

getter/setter pair

When indexUsageMode is UNUSED or PARTIALLY_USED, this field explains why indexes were not used in all or part of the vector search query.

If indexUsageMode is FULLY_USED, this field is not populated.

Implementation

core.List<IndexUnusedReason>? indexUnusedReasons;