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Update external-dicts-dict-layout.md

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Denny Crane 2022-08-29 15:19:15 -03:00 committed by GitHub
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docs/en/sql-reference/dictionaries/external-dictionaries/external-dicts-dict-layout.md
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@ -411,7 +411,7 @@ If setting `allow_read_expired_keys` is set to 1, by default 0. Then dictionary
To improve cache performance, use a subquery with `LIMIT`, and call the function with the dictionary externally.
Supported [sources](../../../sql-reference/dictionaries/external-dictionaries/external-dicts-dict-sources.md): MySQL, ClickHouse, executable, HTTP.
All types of sources are supported.
Example of settings: