mirror of https://gitee.com/bigwinds/arangodb
33 lines
2.2 KiB
Plaintext
33 lines
2.2 KiB
Plaintext
arangosh> db.ids.ensureIndex({ type: <span class="hljs-string">"skiplist"</span>, fields: [ <span class="hljs-string">"myId"</span> ], unique: <span class="hljs-literal">true</span> });
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{
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<span class="hljs-string">"id"</span> : <span class="hljs-string">"ids/16156"</span>,
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<span class="hljs-string">"type"</span> : <span class="hljs-string">"skiplist"</span>,
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<span class="hljs-string">"fields"</span> : [
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<span class="hljs-string">"myId"</span>
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],
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<span class="hljs-string">"unique"</span> : <span class="hljs-literal">true</span>,
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<span class="hljs-string">"sparse"</span> : <span class="hljs-literal">false</span>,
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<span class="hljs-string">"isNewlyCreated"</span> : <span class="hljs-literal">true</span>,
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<span class="hljs-string">"code"</span> : <span class="hljs-number">201</span>
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}
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arangosh> db.ids.save({ <span class="hljs-string">"myId"</span>: <span class="hljs-number">123</span> });
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{
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<span class="hljs-string">"_id"</span> : <span class="hljs-string">"ids/16159"</span>,
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<span class="hljs-string">"_key"</span> : <span class="hljs-string">"16159"</span>,
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<span class="hljs-string">"_rev"</span> : <span class="hljs-string">"16159"</span>
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}
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arangosh> db.ids.save({ <span class="hljs-string">"myId"</span>: <span class="hljs-number">456</span> });
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{
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<span class="hljs-string">"_id"</span> : <span class="hljs-string">"ids/16163"</span>,
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<span class="hljs-string">"_key"</span> : <span class="hljs-string">"16163"</span>,
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<span class="hljs-string">"_rev"</span> : <span class="hljs-string">"16163"</span>
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}
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arangosh> db.ids.save({ <span class="hljs-string">"myId"</span>: <span class="hljs-number">789</span> });
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{
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<span class="hljs-string">"_id"</span> : <span class="hljs-string">"ids/16166"</span>,
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<span class="hljs-string">"_key"</span> : <span class="hljs-string">"16166"</span>,
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<span class="hljs-string">"_rev"</span> : <span class="hljs-string">"16166"</span>
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}
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arangosh> db.ids.save({ <span class="hljs-string">"myId"</span>: <span class="hljs-number">123</span> });
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[ArangoError <span class="hljs-number">1210</span>: cannot create <span class="hljs-built_in">document</span>, unique constraint violated]
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