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RangeHashedDictionary range type docs fix

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This commit is contained in:
Maksim Kita 2021-09-15 12:23:31 +03:00
parent 6c50615bdf
commit 7e23a7d814
1 changed files with 28 additions and 26 deletions
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54
docs/en/sql-reference/dictionaries/external-dictionaries/external-dicts-dict-layout.md
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@ -175,7 +175,10 @@ Example: The table contains discounts for each advertiser in the format:
+---------|-------------|-------------|------+
```
To use a sample for date ranges, define the `range_min` and `range_max` elements in the [structure](../../../sql-reference/dictionaries/external-dictionaries/external-dicts-dict-structure.md). These elements must contain elements `name` and`type` (if `type` is not specified, the default type will be used - Date). `type` can be any numeric type (Date / DateTime / UInt64 / Int32 / others).
To use a sample for date ranges, define the `range_min` and `range_max` elements in the [structure](../../../sql-reference/dictionaries/external-dictionaries/external-dicts-dict-structure.md). These elements must contain elements `name` and `type` (if `type` is not specified, the default type will be used - Date). `type` can be any numeric type (Date / DateTime / UInt64 / Int32 / others).
!!! warning "Warning"
Values of `range_min` and `range_max` should fit in `Int64` type.
Example:
@ -226,34 +229,33 @@ Configuration example:
``` xml
<yandex>
<dictionary>
<dictionary>
...
...
<layout>
<range_hashed />
</layout>
<layout>
<range_hashed />
</layout>
<structure>
<id>
<name>Abcdef</name>
</id>
<range_min>
<name>StartTimeStamp</name>
<type>UInt64</type>
</range_min>
<range_max>
<name>EndTimeStamp</name>
<type>UInt64</type>
</range_max>
<attribute>
<name>XXXType</name>
<type>String</type>
<null_value />
</attribute>
</structure>
<structure>
<id>
<name>Abcdef</name>
</id>
<range_min>
<name>StartTimeStamp</name>
<type>UInt64</type>
</range_min>
<range_max>
<name>EndTimeStamp</name>
<type>UInt64</type>
</range_max>
<attribute>
<name>XXXType</name>
<type>String</type>
<null_value />
</attribute>
</structure>
</dictionary>
</dictionary>
</yandex>
```