indexUnusedReasons property

List<IndexUnusedReason>? indexUnusedReasons

getter/setter pair

When index_usage_mode is UNUSED or PARTIALLY_USED, this field explains why index was not used in all or part of the search query.

If index_usage_mode is FULLLY_USED, this field is not populated.

Implementation

core.List<IndexUnusedReason>? indexUnusedReasons;