排他约束
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。
索引和约束
说明
将唯一性概念推广为支持任何可索引的交换操作符，而不仅限于等值操作符
所选版本: PostgreSQL 18
支持
比较版本
原始文档链接
已记录旧标识: 179
完整来源事实与出处
yaml · center · 1dd22bf9a7f3ec325b894e2836fda535a25529f246a94dd41d6abbfe9997f7fd
{
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"SourceKey": "Exclusion constraints",
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"Name": "Exclusion constraints",
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"GroupLocale": "en",
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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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},
{
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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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},
{
"Version": "9.6",
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"EvidenceKind": "yaml-transition",
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}
],
"Texts": [
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{
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"LegacyIDs": [
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]
}