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doc: default compress algorith

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Shengliang Guan 2024-12-09 19:10:29 +08:00
parent 521ca93cc0
commit 9b554aec83
2 changed files with 18 additions and 14 deletions
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16
docs/en/14-reference/03-taos-sql/31-compress.md
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@ -28,13 +28,15 @@ In this article, it specifically refers to the level within the secondary compre
- Default compression algorithm list and applicable range for each data type
| Data Type | Optional Encoding Algorithm | Default Encoding Algorithm | Optional Compression Algorithm|Default Compression Algorithm| Default Compression Level|
| :-----------:|:----------:|:-------:|:-------:|:----------:|:----:|
| tinyint/untinyint/smallint/usmallint/int/uint | simple8b| simple8b | lz4/zlib/zstd/xz| lz4 | medium|
| bigint/ubigint/timestamp | simple8b/delta-i | delta-i |lz4/zlib/zstd/xz | lz4| medium|
|float/double | delta-d|delta-d |lz4/zlib/zstd/xz/tsz|lz4| medium|
|binary/nchar| disabled| disabled|lz4/zlib/zstd/xz| lz4| medium|
|bool| bit-packing| bit-packing| lz4/zlib/zstd/xz| lz4| medium|
| Data Type |Available Encoding Algorithms | Default Encoding Algorithm | Available Compression Algorithms | Default Compression Algorithm | Default Compression Level |
|:------------------------------------:|:----------------:|:-----------:|:--------------------:|:----:|:------:|
| int/uint | simple8b | simple8b | lz4/zlib/zstd/xz | lz4 | medium |
| tinyint/untinyint/smallint/usmallint | simple8b | simple8b | lz4/zlib/zstd/xz | zlib | medium |
| bigint/ubigint/timestamp | simple8b/delta-i | delta-i | lz4/zlib/zstd/xz | lz4 | medium |
| float/double | delta-d | delta-d | lz4/zlib/zstd/xz/tsz | lz4 | medium |
| binary/nchar | disabled | disabled | lz4/zlib/zstd/xz | zstd | medium |
| bool | bit-packing | bit-packing | lz4/zlib/zstd/xz | zstd | medium |
## SQL

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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
| 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|
| bigint/ubigint/timestamp | simple8b/delta-i | delta-i |lz4/zlib/zstd/xz | lz4| medium|
|float/double | delta-d|delta-d |lz4/zlib/zstd/xz/tsz|lz4| medium|
|binary/nchar| disabled| disabled|lz4/zlib/zstd/xz| lz4| medium|
|bool| bit-packing| bit-packing| lz4/zlib/zstd/xz| lz4| medium|
| 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|
|:------------------------------------:|:----------------:|:-----------:|:--------------------:|:----:|:------:|
| int/uint | simple8b | simple8b | lz4/zlib/zstd/xz | lz4 | medium |
| tinyint/untinyint/smallint/usmallint | simple8b | simple8b | lz4/zlib/zstd/xz | zlib | medium |
| bigint/ubigint/timestamp | simple8b/delta-i | delta-i | lz4/zlib/zstd/xz | lz4 | medium |
| float/double | delta-d | delta-d | lz4/zlib/zstd/xz/tsz | 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