mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-10-03 07:00:47 +00:00
34 lines
1.1 KiB
Markdown
Executable File
34 lines
1.1 KiB
Markdown
Executable File
<a name="dicts-external_dicts_dict"></a>
|
||
|
||
# Configuring an external dictionary
|
||
|
||
The dictionary configuration has the following structure:
|
||
|
||
```xml
|
||
<dictionary>
|
||
<name>dict_name</name>
|
||
|
||
<source>
|
||
<!-- Source configuration -->
|
||
</source>
|
||
|
||
<layout>
|
||
<!-- Memory layout configuration -->
|
||
</layout>
|
||
|
||
<structure>
|
||
<!-- Complex key configuration -->
|
||
</structure>
|
||
|
||
<lifetime>
|
||
<!-- Lifetime of dictionary in memory -->
|
||
</lifetime>
|
||
</dictionary>
|
||
```
|
||
|
||
- name – The identifier that can be used to access the dictionary. Use the characters `[a-zA-Z0-9_\-]`.
|
||
- [source](external_dicts_dict_sources.md/#dicts-external_dicts_dict_sources) — Source of the dictionary .
|
||
- [layout](external_dicts_dict_layout.md#dicts-external_dicts_dict_layout) — Dictionary layout in memory.
|
||
- [structure](external_dicts_dict_structure.md#dicts-external_dicts_dict_structure) — Structure of the dictionary . A key and attributes that can be retrieved by this key.
|
||
- [lifetime](external_dicts_dict_lifetime.md#dicts-external_dicts_dict_lifetime) — Frequency of dictionary updates.
|