并行归并连接
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
归并连接可以并行执行。
所选版本: PostgreSQL 18
支持
比较版本
原始文档链接
已记录旧标识: 299
完整来源事实与出处
yaml · center · 1dd22bf9a7f3ec325b894e2836fda535a25529f246a94dd41d6abbfe9997f7fd
{
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"Name": "Parallel merge joins",
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"Ordinal": 37,
"GroupOrder": 5,
"Facts": {
"feature": {
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"name": "Parallel merge joins",
"versions": {
"10": "Yes"
}
},
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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": "9.4",
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"Supported": false,
"Original": "No"
},
{
"Version": "9.5",
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"Original": "No"
},
{
"Version": "9.6",
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"EvidenceKind": "yaml-default-no",
"TransitionVersion": "",
"Supported": false,
"Original": "No"
}
],
"Texts": [
{
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"Title": "Parallel merge joins",
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},
{
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}