mirror of https://gitee.com/bigwinds/arangodb
12 lines
512 B
Markdown
12 lines
512 B
Markdown
DocumentKey {#GlossaryDocumentKey}
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@GE{Document Key}: A document key uniquely identifies a document
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in a given collection. It can and should be used by clients when
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specific documents are searched.
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Document keys are stored in the `_key` attribute of documents.
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The key values are automatically indexed by ArangoDB so looking
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up a document by its key is regularly a fast operation.
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The `_key` value of a document is immutable once the document has
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been created.
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