已冻结页面映射
已记录的来源状态与原始语言说明；缺少版本证据时明确标为未知。
来源快照记录 PostgreSQL 8.1–18 的变化节点；历史矩阵独立记录 7.4–18 的状态。两者均未记录 PostgreSQL 19 或 20 的支持状态，较新版本明确保留为未知。这些来源声明与运行测量相互独立。
性能
说明
可见性映射中的冻结页面数据，防止在回卷期间重新清理已冻结的页面。
所选版本: PostgreSQL 18
支持
比较版本
原始文档链接
已记录旧标识: 287
完整来源事实与出处
yaml · center · 1dd22bf9a7f3ec325b894e2836fda535a25529f246a94dd41d6abbfe9997f7fd
{
"Key": "frozen-page-map",
"SourceKind": "yaml",
"SourceDatabase": "center",
"SourceTable": "featurematrix.yaml",
"SourceKey": "Frozen page map",
"SourceHash": "1dd22bf9a7f3ec325b894e2836fda535a25529f246a94dd41d6abbfe9997f7fd",
"Name": "Frozen page map",
"NameLocale": "en",
"GroupKey": "performance",
"GroupName": "Performance",
"GroupLocale": "en",
"Ordinal": 13,
"GroupOrder": 5,
"Facts": {
"feature": {
"description": "Frozen page data in visibility map to prevent re-vacuuming already-frozen pages during wraparound.",
"name": "Frozen page map",
"versions": {
"9.6": "Yes"
}
},
"group": "Performance",
"versions": {
"max": 18,
"min": 8.1
}
},
"Cells": [
{
"Version": "10",
"State": "yes",
"EvidenceKind": "yaml-transition",
"TransitionVersion": "9.6",
"Supported": true,
"Original": "Yes"
},
{
"Version": "11",
"State": "yes",
"EvidenceKind": "yaml-transition",
"TransitionVersion": "9.6",
"Supported": true,
"Original": "Yes"
},
{
"Version": "12",
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"EvidenceKind": "yaml-transition",
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"Supported": true,
"Original": "Yes"
},
{
"Version": "13",
"State": "yes",
"EvidenceKind": "yaml-transition",
"TransitionVersion": "9.6",
"Supported": true,
"Original": "Yes"
},
{
"Version": "14",
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"EvidenceKind": "yaml-transition",
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"Supported": true,
"Original": "Yes"
},
{
"Version": "15",
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"EvidenceKind": "yaml-transition",
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"Supported": true,
"Original": "Yes"
},
{
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"Supported": true,
"Original": "Yes"
},
{
"Version": "17",
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"EvidenceKind": "yaml-transition",
"TransitionVersion": "9.6",
"Supported": true,
"Original": "Yes"
},
{
"Version": "18",
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"EvidenceKind": "yaml-transition",
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"Supported": true,
"Original": "Yes"
},
{
"Version": "8.1",
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"EvidenceKind": "yaml-default-no",
"TransitionVersion": "",
"Supported": false,
"Original": "No"
},
{
"Version": "8.2",
"State": "no",
"EvidenceKind": "yaml-default-no",
"TransitionVersion": "",
"Supported": false,
"Original": "No"
},
{
"Version": "8.3",
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"EvidenceKind": "yaml-default-no",
"TransitionVersion": "",
"Supported": false,
"Original": "No"
},
{
"Version": "8.4",
"State": "no",
"EvidenceKind": "yaml-default-no",
"TransitionVersion": "",
"Supported": false,
"Original": "No"
},
{
"Version": "9.0",
"State": "no",
"EvidenceKind": "yaml-default-no",
"TransitionVersion": "",
"Supported": false,
"Original": "No"
},
{
"Version": "9.1",
"State": "no",
"EvidenceKind": "yaml-default-no",
"TransitionVersion": "",
"Supported": false,
"Original": "No"
},
{
"Version": "9.2",
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"EvidenceKind": "yaml-default-no",
"TransitionVersion": "",
"Supported": false,
"Original": "No"
},
{
"Version": "9.3",
"State": "no",
"EvidenceKind": "yaml-default-no",
"TransitionVersion": "",
"Supported": false,
"Original": "No"
},
{
"Version": "9.4",
"State": "no",
"EvidenceKind": "yaml-default-no",
"TransitionVersion": "",
"Supported": false,
"Original": "No"
},
{
"Version": "9.5",
"State": "no",
"EvidenceKind": "yaml-default-no",
"TransitionVersion": "",
"Supported": false,
"Original": "No"
},
{
"Version": "9.6",
"State": "yes",
"EvidenceKind": "yaml-transition",
"TransitionVersion": "9.6",
"Supported": true,
"Original": "Yes"
}
],
"Texts": [
{
"Locale": "en",
"Title": "Frozen page map",
"BodyHTML": "\u003cp\u003eFrozen page data in visibility map to prevent re-vacuuming already-frozen pages during wraparound.\u003c/p\u003e\n",
"SourceHash": "1dd22bf9a7f3ec325b894e2836fda535a25529f246a94dd41d6abbfe9997f7fd",
"ContentHash": "4a91f2f67f0a569bfd6e11dc1449133a89dcd21050941faded5425925357c0cb",
"Payload": {
"description": "Frozen page data in visibility map to prevent re-vacuuming already-frozen pages during wraparound.",
"name": "Frozen page map",
"versions": {
"9.6": "Yes"
}
}
},
{
"Locale": "zh-Hans",
"Title": "已冻结页面映射",
"BodyHTML": "\u003cp\u003e可见性映射中的冻结页面数据，防止在回卷期间重新清理已冻结的页面。\u003c/p\u003e\n",
"SourceHash": "071091951021357a5f492adb04caed6febf4d315ac2626ca027a48dd8ec01d50",
"ContentHash": "79e9f11ac3eaa0d858a029e5cbfa746ff1cbbd46292746c81e14caebe4dac99e",
"Payload": {
"description": "可见性映射中的冻结页面数据，防止在回卷期间重新清理已冻结的页面。",
"name": "已冻结页面映射"
}
}
],
"GroupTitles": {
"en": "Performance",
"zh-Hans": "性能"
},
"LegacyIDs": [
"287"
]
}