ClickHouse/docs/en/table_engines/index.rst

19 lines
627 B
ReStructuredText
Raw Normal View History

2017-04-26 17:26:17 +00:00
Table engines
2017-04-03 19:49:50 +00:00
=============
2017-04-26 17:26:17 +00:00
The table engine (type of table) determines:
- How and where data is stored - where to write it to, and where to read it from.
- Which queries are supported, and how.
- Concurrent data access.
- Use of indexes, if present.
- Whether multithreaded request execution is possible.
- Data replication.
- When reading data, the engine is only required to extract the necessary set of columns. However, in some cases, the query may be partially processed inside the table engine.
2017-04-03 19:49:50 +00:00
2017-04-26 17:26:17 +00:00
Note that for most serious tasks, you should use engines from the MergeTree family.
2017-04-03 19:49:50 +00:00
.. toctree::
:glob:
*