表达式索引
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。
暂无文字说明，以下仍保留原始链接与版本事实。
索引和约束
说明
所选版本: PostgreSQL 18
支持
比较版本
原始文档链接
完整来源事实与出处
yaml · center · 1dd22bf9a7f3ec325b894e2836fda535a25529f246a94dd41d6abbfe9997f7fd
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"SourceKind": "yaml",
"SourceDatabase": "center",
"SourceTable": "featurematrix.yaml",
"SourceKey": "Indexes on expressions",
"SourceHash": "1dd22bf9a7f3ec325b894e2836fda535a25529f246a94dd41d6abbfe9997f7fd",
"Name": "Indexes on expressions",
"NameLocale": "en",
"GroupKey": "indexing-constraints",
"GroupName": "Indexing \u0026 Constraints",
"GroupLocale": "en",
"Ordinal": 12,
"GroupOrder": 2,
"Facts": {
"feature": {
"name": "Indexes on expressions",
"url": "https://www.postgresql.org/docs/current/static/indexes-expressional.html",
"versions": {
"8.1": "Yes"
}
},
"group": "Indexing \u0026 Constraints",
"versions": {
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}
},
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},
{
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{
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{
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},
{
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},
{
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}
],
"Texts": [
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"BodyHTML": "",
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"versions": {
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}
}
},
{
"Locale": "zh-Hans",
"Title": "表达式索引",
"BodyHTML": "\u003cp\u003ehttps://www.postgresql.org/docs/current/static/indexes-expressional.html\u003c/p\u003e\n",
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],
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"zh-Hans": "索引和约束"
}
}