{"capability":{"Key":"217","SourceKind":"legacy","SourceDatabase":"center","SourceTable":"featurematrix_feature","SourceKey":"217","SourceHash":"cb4c66080e565f5ffc077205ebd67d781b1679b5fa3105c708faba4e5854925f","Name":"仅索引扫描","NameLocale":"zh-Hans","GroupKey":"13","GroupName":"索引和约束","GroupLocale":"zh-Hans","Ordinal":0,"GroupOrder":4,"Facts":{"featuredescription":"也称为\"覆盖索引\"，当查询中的所有列都被索引覆盖时，允许直接从索引中获取数据来满足查询。这消除了之前必须访问表页面以获取可见性信息的要求，现在改为使用可见性映射来替代。","featurename":"仅索引扫描","group_id":13,"id":217,"v10":1,"v11":1,"v12":1,"v13":1,"v14":0,"v15":0,"v16":0,"v17":0,"v18":0,"v74":0,"v80":0,"v81":0,"v82":0,"v83":0,"v84":0,"v90":0,"v91":0,"v92":1,"v93":1,"v94":1,"v95":1,"v96":1},"Cells":[{"Version":"10","State":"yes","EvidenceKind":"legacy-database:v10","TransitionVersion":"","Supported":true,"Original":1},{"Version":"11","State":"yes","EvidenceKind":"legacy-database:v11","TransitionVersion":"","Supported":true,"Original":1},{"Version":"12","State":"yes","EvidenceKind":"legacy-database:v12","TransitionVersion":"","Supported":true,"Original":1},{"Version":"13","State":"yes","EvidenceKind":"legacy-database:v13","TransitionVersion":"","Supported":true,"Original":1},{"Version":"14","State":"no","EvidenceKind":"legacy-database:v14","TransitionVersion":"","Supported":false,"Original":0},{"Version":"15","State":"no","EvidenceKind":"legacy-database:v15","TransitionVersion":"","Supported":false,"Original":0},{"Version":"16","State":"no","EvidenceKind":"legacy-database:v16","TransitionVersion":"","Supported":false,"Original":0},{"Version":"17","State":"no","EvidenceKind":"legacy-database:v17","TransitionVersion":"","Supported":false,"Original":0},{"Version":"18","State":"no","EvidenceKind":"legacy-database:v18","TransitionVersion":"","Supported":false,"Original":0},{"Version":"7.4","State":"no","EvidenceKind":"legacy-database:v74","TransitionVersion":"","Supported":false,"Original":0},{"Version":"8.0","State":"no","EvidenceKind":"legacy-database:v80","TransitionVersion":"","Supported":false,"Original":0},{"Version":"8.1","State":"no","EvidenceKind":"legacy-database:v81","TransitionVersion":"","Supported":false,"Original":0},{"Version":"8.2","State":"no","EvidenceKind":"legacy-database:v82","TransitionVersion":"","Supported":false,"Original":0},{"Version":"8.3","State":"no","EvidenceKind":"legacy-database:v83","TransitionVersion":"","Supported":false,"Original":0},{"Version":"8.4","State":"no","EvidenceKind":"legacy-database:v84","TransitionVersion":"","Supported":false,"Original":0},{"Version":"9.0","State":"no","EvidenceKind":"legacy-database:v90","TransitionVersion":"","Supported":false,"Original":0},{"Version":"9.1","State":"no","EvidenceKind":"legacy-database:v91","TransitionVersion":"","Supported":false,"Original":0},{"Version":"9.2","State":"yes","EvidenceKind":"legacy-database:v92","TransitionVersion":"","Supported":true,"Original":1},{"Version":"9.3","State":"yes","EvidenceKind":"legacy-database:v93","TransitionVersion":"","Supported":true,"Original":1},{"Version":"9.4","State":"yes","EvidenceKind":"legacy-database:v94","TransitionVersion":"","Supported":true,"Original":1},{"Version":"9.5","State":"yes","EvidenceKind":"legacy-database:v95","TransitionVersion":"","Supported":true,"Original":1},{"Version":"9.6","State":"yes","EvidenceKind":"legacy-database:v96","TransitionVersion":"","Supported":true,"Original":1}],"Texts":[{"Locale":"zh-Hans","Title":"仅索引扫描","BodyHTML":"\u003cp\u003e也称为\u0026#34;覆盖索引\u0026#34;，当查询中的所有列都被索引覆盖时，允许直接从索引中获取数据来满足查询。这消除了之前必须访问表页面以获取可见性信息的要求，现在改为使用可见性映射来替代。\u003c/p\u003e\n","SourceHash":"cb4c66080e565f5ffc077205ebd67d781b1679b5fa3105c708faba4e5854925f","ContentHash":"a672d62ead0fa8266d117136b755697024813a643716aa603fd0ee97e4d09d60","Payload":{"description":"也称为\"覆盖索引\"，当查询中的所有列都被索引覆盖时，允许直接从索引中获取数据来满足查询。这消除了之前必须访问表页面以获取可见性信息的要求，现在改为使用可见性映射来替代。","name":"仅索引扫描"}}],"GroupTitles":{"zh-Hans":"索引和约束"},"RelatedKey":"index-only-scans"},"observed":true,"selected_cell":{"Version":"18","State":"no","EvidenceKind":"legacy-database:v18","TransitionVersion":"","Supported":false,"Original":0},"selected_version":"18"}