apoc.util.compress
语法 |
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描述 |
压缩给定的 |
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参数 |
名称 |
类型 |
描述 |
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要压缩的字符串。 |
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{ compression = "GZIP" :: ["GZIP", "BZIP2", "DEFLATE", "BLOCK_LZ4", "FRAMED_SNAPPY", "NONE"], charset = "UTF_8" ::["UTF-8", "UTF-16", "UTF-16BE", "UTF-16LE", "UTF-32", "US-ASCII", "ISO-8859-1"] } 默认值是： |
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返回 |
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配置参数
该过程支持以下配置参数
| 名称 | 类型 | 默认值 | 描述 |
|---|---|---|---|
compression |
枚举 |
GZIP |
用于压缩字符串的压缩算法 |
charset |
枚举 |
UTF-8 |
用于压缩字符串的字符集 |
使用示例
RETURN apoc.util.compress('Mätrix II 哈哈😄123', {charset: 'UTF-32'}) AS value| 值 |
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{"0":31.0,"1":-117.0,"2":8.0,"3":0.0,"4":0.0,"5":0.0,"6":0.0,"7":0.0,"8":0.0,"9":-1.0,"10":99.0,"11":96.0,"12":96.0,"13":-16.0,"14":101.0,"15":96.0,"16":96.0,"17":120.0,"18":2.0,"19":-60.0,"20":37.0,"21":64.0,"22":92.0,"23":4.0,"24":-60.0,"25":-103.0,"26":64.0,"27":92.0,"28":1.0,"29":-60.0,"30":10.0,"31":64.0,"32":-20.0,"33":9.0,"34":-59.0,"35":64.0,"36":118.0,"37":-56.0,"38":9.0,"39":48.0,"40":102.0,"41":-4.0,"42":-58.0,"43":2.0,"44":-28.0,"45":27.0,"46":2.0,"47":-79.0,"48":17.0,"49":16.0,"50":27.0,"51":3.0,"52":0.0,"53":113.0,"54":-125.0,"55":-33.0,"56":46.0,"57":64.0,"58":0.0,"59":0.0,"60":0.0} |
RETURN apoc.util.compress('Mätrix II 哈哈😄123', {compression: 'DEFLATE'}) AS value| 值 |
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{"0":120.0,"1":-100.0,"2":-13.0,"3":61.0,"4":-68.0,"5":-92.0,"6":-92.0,"7":40.0,"8":-77.0,"9":66.0,"10":-63.0,"11":-45.0,"12":83.0,"13":-31.0,"14":-23.0,"15":-28.0,"16":14.0,"17":32.0,"18":-6.0,"19":48.0,"20":127.0,"21":70.0,"22":-117.0,"23":-95.0,"24":-111.0,"25":49.0,"26":0.0,"27":-111.0,"28":-127.0,"29":11.0,"30":-113.0} |
Return apoc.util.compress("Example", {charset: 'UTF-16'}) AS value| 值 |
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{"0":31.0,"1":-117.0,"2":8.0,"3":0.0,"4":0.0,"5":0.0,"6":0.0,"7":0.0,"8":0.0,"9":-1.0,"10":-5.0,"11":-9.0,"12":-97.0,"13":-63.0,"14":-107.0,"15":-95.0,"16":-126.0,"17":33.0,"18":-111.0,"19":33.0,"20":-105.0,"21":-95.0,"22":-128.0,"23":33.0,"24":-121.0,"25":33.0,"26":21.0,"27":0.0,"28":9.0,"29":100.0,"30":12.0,"31":-109.0,"32":16.0,"33":0.0,"34":0.0,"35":0.0} |