Add support for aliases in queries on _index. #46944
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Previously, queries on the _index field were not able to specify index aliases. This was a regression in functionality compared to the 'indices' query that was deprecated and removed in 6.0. Now queries on _index can specify an alias, which is resolved to the concrete index names when we check whether an index matches. To match a remote shard target, the pattern needs to be of the form 'cluster:index' to match the fully-qualified index name. Index aliases can be specified in the following query types: term, terms, prefix, and wildcard.
jtibshirani
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:Search/Search
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Pinging @elastic/es-search |
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@elasticmachine run elasticsearch-ci/1 |
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Backport of #46640. Also includes a note in the 7.5 migration docs as it technically includes a breaking change.