43 lines
1.9 KiB
Plaintext
43 lines
1.9 KiB
Plaintext
[[breaking_50_percolator]]
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=== Percolator changes
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==== Percolator is near-real time
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Previously percolators were activated in real-time, i.e. as soon as they were
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indexed. Now, changes to the percolator query are visible in near-real time,
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as soon as the index has been refreshed. This change was required because, in
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indices created from 5.0 onwards, the terms used in a percolator query are
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automatically indexed to allow for more efficient query selection during
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percolation.
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==== Percolate and multi percolator APIs
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Percolator and multi percolate APIs have been deprecated and will be removed in the next major release. These APIs have
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been replaced by the `percolator` query that can be used in the search and multi search APIs.
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==== Percolator mapping
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The `percolator` query can no longer accept documents that reference fields
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that don't already exist in the mapping. Before the percolate API allowed this.
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The `percolator` query no longer modifies the mappings. Before the percolate API
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could be used to dynamically introduce new fields to the mappings based on the
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fields in the document being percolated. This no longer works, because these
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unmapped fields are not persisted in the mapping.
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==== Percolator documents returned by search
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Documents with the `.percolate` type were previously excluded from the search
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response, unless the `.percolate` type was specified explicitly in the search
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request. Now, percolator documents are treated in the same way as any other
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document and are returned by search requests.
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==== Percolating existing document
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When percolating an existing document then also specifying a document as source in the
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`percolator` query is not allowed any more. Before the percolate API allowed and ignored
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the existing document.
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==== Percolate Stats
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Percolate stats have been replaced with percolator query cache stats in nodes stats and cluster stats APIs. |