28 lines
811 B
Plaintext
28 lines
811 B
Plaintext
[[mapping-id-field]]
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=== `_id`
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Each document indexed is associated with an id and a type. The `_id`
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field can be used to index just the id, and possible also store it. By
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default it is not indexed and not stored (thus, not created).
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Note, even though the `_id` is not indexed, all the APIs still work
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(since they work with the `_uid` field), as well as fetching by ids
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using `term`, `terms` or `prefix` queries/filters (including the
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specific `ids` query/filter).
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The `_id` field can be enabled to be indexed, and possibly stored,
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using the appropriate mapping attributes:
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[source,js]
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--------------------------------------------------
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{
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"tweet" : {
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"_id" : {
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"index" : "not_analyzed",
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"store" : true
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}
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}
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}
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--------------------------------------------------
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