2019-10-08 08:31:12 +00:00
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# Lazy
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2019-10-08 19:15:30 +00:00
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Works like `Ordinary`, but keeps tables in RAM only `expiration_time_in_seconds` seconds after last access. Can be used only with \*Log tables.
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2019-10-08 08:31:12 +00:00
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2019-10-08 19:15:30 +00:00
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It's optimized for storing many small \*Log tables, for which there is a long time interval between accesses.
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2019-10-08 08:31:12 +00:00
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## Creating a Database
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```
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CREATE DATABASE testlazy ENGINE = Lazy(expiration_time_in_seconds);
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```
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2019-10-09 19:19:50 +00:00
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[Original article](https://clickhouse.yandex/docs/en/database_engines/lazy/) <!--hide-->
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