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Merge pull request #29076 from taosdata/doc/contrib 

doc: default compress algorith
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Shengliang Guan 2024-12-09 19:21:16 +08:00 committed by GitHub
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15
docs/en/14-reference/03-taos-sql/32-compress.md
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@ -28,13 +28,14 @@ In this document, it specifically refers to the internal levels of the second-le
- Default compression algorithms list and applicable range for each data type - Default compression algorithms list and applicable range for each data type
| Data Type | Available Encoding Algorithms | Default Encoding Algorithm | Available Compression Algorithms|Default Compression Algorithm| Default Compression Level| | Data Type |Available Encoding Algorithms | Default Encoding Algorithm | Available Compression Algorithms | Default Compression Algorithm | Default Compression Level |
| :-----------:|:----------:|:-------:|:-------:|:----------:|:----:| |:------------------------------------:|:----------------:|:-----------:|:--------------------:|:----:|:------:|
| tinyint/untinyint/smallint/usmallint/int/uint | simple8b| simple8b | lz4/zlib/zstd/xz| lz4 | medium| | int/uint | simple8b | simple8b | lz4/zlib/zstd/xz | lz4 | medium |
| bigint/ubigint/timestamp | simple8b/delta-i | delta-i |lz4/zlib/zstd/xz | lz4| medium| | tinyint/untinyint/smallint/usmallint | simple8b | simple8b | lz4/zlib/zstd/xz | zlib | medium |
|float/double | delta-d|delta-d |lz4/zlib/zstd/xz/tsz|lz4| medium| | bigint/ubigint/timestamp | simple8b/delta-i | delta-i | lz4/zlib/zstd/xz | lz4 | medium |
|binary/nchar| disabled| disabled|lz4/zlib/zstd/xz| lz4| medium| | float/double | delta-d | delta-d | lz4/zlib/zstd/xz/tsz | lz4 | medium |
|bool| bit-packing| bit-packing| lz4/zlib/zstd/xz| lz4| medium| | binary/nchar | disabled | disabled | lz4/zlib/zstd/xz | zstd | medium |
| bool | bit-packing | bit-packing | lz4/zlib/zstd/xz | zstd | medium |
## SQL Syntax ## SQL Syntax

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docs/zh/14-reference/03-taos-sql/32-compress.md
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@ -29,13 +29,15 @@ description: 可配置压缩算法
- 各个数据类型的默认压缩算法列表和适用范围 - 各个数据类型的默认压缩算法列表和适用范围
| 数据类型 | 可选编码算法 | 编码算法默认值 | 可选压缩算法|压缩算法默认值| 压缩等级默认值| | 数据类型 | 可选编码算法 | 编码算法默认值 | 可选压缩算法 | 压缩算法默认值 |压缩等级默认值|
| :-----------:|:----------:|:-------:|:-------:|:----------:|:----:| |:------------------------------------:|:----------------:|:-----------:|:--------------------:|:----:|:------:|
| tinyint/untinyint/smallint/usmallint/int/uint | simple8b| simple8b | lz4/zlib/zstd/xz| lz4 | medium| | int/uint | simple8b | simple8b | lz4/zlib/zstd/xz | lz4 | medium |
| bigint/ubigint/timestamp | simple8b/delta-i | delta-i |lz4/zlib/zstd/xz | lz4| medium| | tinyint/untinyint/smallint/usmallint | simple8b | simple8b | lz4/zlib/zstd/xz | zlib | medium |
|float/double | delta-d|delta-d |lz4/zlib/zstd/xz/tsz|lz4| medium| | bigint/ubigint/timestamp | simple8b/delta-i | delta-i | lz4/zlib/zstd/xz | lz4 | medium |
|binary/nchar| disabled| disabled|lz4/zlib/zstd/xz| lz4| medium| | float/double | delta-d | delta-d | lz4/zlib/zstd/xz/tsz | lz4 | medium |
|bool| bit-packing| bit-packing| lz4/zlib/zstd/xz| lz4| medium| | binary/nchar | disabled | disabled | lz4/zlib/zstd/xz | zstd | medium |
| bool | bit-packing | bit-packing | lz4/zlib/zstd/xz | zstd | medium |
## SQL 语法 ## SQL 语法