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703dbff83d
The `exists` and `missing` filters need to merge postings lists of all existing terms, which can be very costly, especially on high-cardinality fields. This commit indexes the field names of a document under `_field_names` and reuses it to speed up the `exists` and `missing` filters. This is only enabled for indices that are created on or after Elasticsearch 1.3.0. Close #5659
36 lines
746 B
Plaintext
36 lines
746 B
Plaintext
[[mapping-fields]]
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== Fields
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Each mapping has a number of fields associated with it
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which can be used to control how the document metadata
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(eg <<mapping-all-field>>) is indexed.
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include::fields/uid-field.asciidoc[]
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include::fields/id-field.asciidoc[]
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include::fields/type-field.asciidoc[]
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include::fields/source-field.asciidoc[]
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include::fields/all-field.asciidoc[]
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include::fields/analyzer-field.asciidoc[]
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include::fields/boost-field.asciidoc[]
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include::fields/parent-field.asciidoc[]
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include::fields/field-names-field.asciidoc[]
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include::fields/routing-field.asciidoc[]
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include::fields/index-field.asciidoc[]
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include::fields/size-field.asciidoc[]
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include::fields/timestamp-field.asciidoc[]
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include::fields/ttl-field.asciidoc[]
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