ClickHouse/docs/en/engines/table-engines/log-family/tinylog.md

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slug: /en/engines/table-engines/log-family/tinylog
toc_priority: 34
toc_title: TinyLog
---

# TinyLog

The engine belongs to the log engine family. See [Log Engine Family](../../../engines/table-engines/log-family/index.md) for common properties of log engines and their differences.

This table engine is typically used with the write-once method: write data one time, then read it as many times as necessary. For example, you can use `TinyLog`-type tables for intermediary data that is processed in small batches. Note that storing data in a large number of small tables is inefficient.

Queries are executed in a single stream. In other words, this engine is intended for relatively small tables (up to about 1,000,000 rows). It makes sense to use this table engine if you have many small tables, since it’s simpler than the [Log](../../../engines/table-engines/log-family/log.md) engine (fewer files need to be opened).
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+								---
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+								slug: /en/engines/table-engines/log-family/tinylog
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 								toc_title: TinyLog
 								---
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+								# TinyLog
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+								The engine belongs to the log engine family. See [Log Engine Family](../../../engines/table-engines/log-family/index.md) for common properties of log engines and their differences.
-												Docapi 3818 stripe log (#4191)

* Update of english version of descriprion of the table function `file`.

* New syntax for ReplacingMergeTree.
Some improvements in text.

* Significantly change article about SummingMergeTree.
Article is restructured, text is changed in many places of the document. New syntax for table creation is described.

* Descriptions of AggregateFunction and AggregatingMergeTree are updated. Russian version.

* New syntax for new syntax of CREATE TABLE

* Added english docs on Aggregating, Replacing and SummingMergeTree.

* CollapsingMergeTree docs. English version.

* 1. Update of CollapsingMergeTree. 2. Minor changes in markup

* Update aggregatefunction.md

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* GraphiteMergeTree docs update.
New syntax for creation of Replicated* tables.
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* Markup fix

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* DOCAPI-4821. Sync between ru and en versions of docs.

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* Example of JOIN in ru docs

* Deleted misinforming example.

* Fixed links to IN operators.

* Updated the description of ALTER MODIFY.

* [RU] Updated ALTER MODIFY description.

* Fixed anchors.

* DOCAPI-3818: The Family of Log engines. StripeLog. Tocs sync.

* DOCAPI-3818: Edits after review by Ivan Blinkov.

											
										
										
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* Typo fix.

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* DOCAPI-7991: RU translation.

											
										
										
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+								This table engine is typically used with the write-once method: write data one time, then read it as many times as necessary. For example, you can use `TinyLog`-type tables for intermediary data that is processed in small batches. Note that storing data in a large number of small tables is inefficient.
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											2017-04-03 19:49:50 +00:00
-												[docs] split aggregate function and system table references (#11742)

* prefer relative links from root

* wip

* split aggregate function reference

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+								Queries are executed in a single stream. In other words, this engine is intended for relatively small tables (up to about 1,000,000 rows). It makes sense to use this table engine if you have many small tables, since it’s simpler than the [Log](../../../engines/table-engines/log-family/log.md) engine (fewer files need to be opened).