2019-05-24 04:44:59 -04:00
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[[breaking-changes-7.3]]
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== Breaking changes in 7.3
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++++
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<titleabbrev>7.3</titleabbrev>
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++++
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This section discusses the changes that you need to be aware of when migrating
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your application to Elasticsearch 7.3.
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See also <<release-highlights>> and <<es-release-notes>>.
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coming[7.3.0]
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//NOTE: The notable-breaking-changes tagged regions are re-used in the
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//Installation and Upgrade Guide
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//tag::notable-breaking-changes[]
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// end::notable-breaking-changes[]
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2019-05-24 18:55:06 -04:00
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[[breaking_73_mapping_changes]]
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=== Mapping changes
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[float]
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==== Defining multi-fields within multi-fields
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Previously, it was possible to define a multi-field within a multi-field.
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Defining chained multi-fields is now deprecated and will no longer be supported
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in 8.0. To resolve the issue, all instances of `fields` that occur within a
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`fields` block should be removed from the mappings, either by flattening the
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chained `fields` blocks into a single level, or by switching to `copy_to` if
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appropriate.
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2019-05-24 04:44:59 -04:00
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[[breaking_73_plugin_changes]]
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=== Plugins changes
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[float]
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==== IndexStorePlugin changes
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IndexStore and DirectoryService have been replaced by a stateless and simple
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DirectoryFactory interface to create custom Lucene directory instances per shard.
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