Indexes on expressions
Recorded source states and original language descriptions. Missing version evidence stays unknown.
The source snapshot records transitions for PostgreSQL 8.1–18. The historical matrix records independent cells for 7.4–18. Neither records support for PostgreSQL 19 or 20; newer versions remain unknown. These source claims are distinct from runtime measurements.
No prose description is recorded; original links and version facts remain available.
Indexing & Constraints
Description
Selected version: PostgreSQL 18
Yes
Compare versions
Original documentation links
Complete source facts and provenance
yaml · center · 1dd22bf9a7f3ec325b894e2836fda535a25529f246a94dd41d6abbfe9997f7fd
{
"Key": "indexes-on-expressions",
"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"
}
},
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},
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"Original": "Yes"
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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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"Title": "Indexes on expressions",
"BodyHTML": "",
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"versions": {
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}
}
},
{
"Locale": "zh-Hans",
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"BodyHTML": "\u003cp\u003ehttps://www.postgresql.org/docs/current/static/indexes-expressional.html\u003c/p\u003e\n",
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"zh-Hans": "索引和约束"
}
}