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7a18bb50fc
This change disables the _all meta field by default. Now that we have the "all-fields" method of query execution, we can save both indexing time and disk space by disabling it. _all can no longer be configured for indices created after 6.0. Relates to #20925 and #21341 Resolves #19784
18 lines
788 B
Plaintext
18 lines
788 B
Plaintext
[[breaking_60_mappings_changes]]
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=== Mapping changes
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==== The `_all` meta field is now disabled by default
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On new mappings, the `_all` meta field that contains a copy of the text from
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each field is now disabled by default. The `query_string` and
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`simple_query_string` queries that previously used `_all` to search will now
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check if `_all` is enabled/disabled and switch to executing the query across all
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fields if `_all` is disabled. `_all` can no longer be configured for indices
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created with Elasticsearch version 6.0 or later.
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==== Unrecognized `match_mapping_type` options not silently ignored
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Previously Elastiscearch would silently ignore any dynamic templates that
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included a `match_mapping_type` type that was unrecognized. An exception is now
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thrown on an unrecognized type.
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