{"id":45216,"date":"2023-06-17T22:58:44","date_gmt":"2023-04-15T17:27:09","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/45216-2\/"},"modified":"2024-04-30T09:23:21","modified_gmt":"2024-04-30T01:23:21","slug":"45216-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/45216-2\/","title":{"rendered":""},"content":{"rendered":"

Rust \u521d\u5fc3\u8005\u306esonesuke( https:\/\/twitter.com\/sonesuke )\u3067\u3059\u3002
\n\u3053\u308c\u306f\u3001Rust Advent Calendar 2021 \u306e 16\u65e5\u76ee\u3067\u3059\u3002\u9061\u3063\u3066\u66f8\u3044\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u4ed5\u4e8b\u3067PostgreSQL\u62e1\u5f35\u6a5f\u80fd\u3092\u4f5c\u308b\u30b7\u30c1\u30e5\u30a8\u30fc\u30b7\u30e7\u30f3\u304c\u51fa\u3066\u304d\u305f\u306e\u3067\u3059\u304c\u3001\u300cC\u8a00\u8a9e\u3067\u62e1\u5f35\u3064\u304f\u308b\u306e\u3082\u3064\u307e\u3089\u306a\u3044\u306a\u300d\u3068\u601d\u3063\u3066\u3044\u305f\u3089\u3001Rust\u3067\u3082\u4f5c\u308c\u308b\u307f\u305f\u3044\u3060\u3063\u305f\u306e\u3067\u3001\u4f5c\u3063\u3066\u307f\u307e\u3057\u305f\u3002<\/p>\n

TL;DR<\/h1>\n
    \n
  1. \n
      PostgreSQL\u306b\u65e5\u672c\u8a9e\u5f62\u614b\u7d20\u89e3\u6790\u3092\u3059\u308b\u62e1\u5f35\u3092\u4f5c\u3063\u3066\u307f\u305f<\/ol>\n<\/li>\n<\/ol>\n

       <\/p>\n

        \n
      1. \n
          cargo-pgx\u3092\u4f7f\u3063\u3066Rust\u3067\u7c21\u5358\u306bPostgreSQL\u3092\u4f5c\u308b\u3053\u3068\u304c\u3067\u304d\u308b<\/ol>\n<\/li>\n<\/ol>\n

           <\/p>\n

            \u6210\u679c\u7269\u306f\u4ee5\u4e0b<\/ol>\n

             <\/p>\n

            \u8981\u4ef6\u5b9a\u7fa9<\/h1>\n

            \u771f\u9762\u76ee\u306b\u3001\u8981\u4ef6\u5b9a\u7fa9\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n

              \n
            1. \n
                \u65e5\u672c\u8a9e\u306e\u5f62\u614b\u7d20\u89e3\u6790\u304c\u3057\u305f\u3044<\/ol>\n<\/li>\n<\/ol>\n

                 <\/p>\n

                  \n
                1. \n
                    \u89e3\u6790\u5bfe\u8c61\u306fPostgreSQL\u306eTEXT\u30ab\u30e9\u30e0<\/ol>\n<\/li>\n<\/ol>\n

                     <\/p>\n

                      \n
                    1. \n
                        \u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u304c\u7c21\u5358 \u2192 PostgreSQL\u306b\u30b3\u30d4\u30fc\u3057\u305f\u3089\u4f7f\u3048\u308b (\u30d3\u30eb\u30c9\u3057\u76f4\u3055\u306a\u3044)<\/ol>\n<\/li>\n<\/ol>\n

                         <\/p>\n

                          \n
                        1. \n
                            \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u3088\u3044\u3053\u3068<\/ol>\n<\/li>\n<\/ol>\n

                             <\/p>\n

                              \u7b46\u8005\u306e\u77e5\u7684\u597d\u5947\u5fc3\u3092\u6e80\u305f\u3059<\/ol>\n

                              \u6280\u8853\u9078\u5b9a\u3057\u3066\u307f\u308b<\/h1>\n

                              \u3044\u308d\u3044\u308d\u63a2\u3057\u307e\u3059\u30fb\u30fb\u30fb\u30fb\u30fb<\/p>\n

                               <\/p>\n

                              \u3046\u30fc\u3093\u3001\u7b46\u8005\u304cPython\u3092\u304b\u3051\u308b\u306e\u3067\u3001\u7c21\u5358\u305d\u3046\u306a\u3093\u3060\u3051\u3069FDW\u3060\u3057\u30fb\u30fb\u30fbPython\u3060\u3057\u30fb\u30fb\u30fb\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u60aa\u305d\u3046\u3060\u3057\u30fb\u30fb\u30fb
                              \n\u307e\u3060\u307e\u3060\u3001\u63a2\u3059\u30fb\u30fb\u30fb\u30fb<\/p>\n

                              \u771f\u9762\u76ee\u306b\u3001\u4f5c\u308b\u3057\u304b\u306a\u3044\u306e\u304b\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u3044\u3048\u3070\u3001C\u8a00\u8a9e\u3067\u30cd\u30a4\u30c6\u30a3\u30d6\u3063\u3057\u3087\u3002<\/p>\n

                               <\/p>\n

                              Datum\u30fb\u30fb\u30fb\u30fbPG_FUNCTION_ARGS\u30fb\u30fb\u30fb\u30fb\u3075\u3080\u3075\u3080\u30fb\u30fb\u30fb\u30fb\u30cd\u30a4\u30c6\u30a3\u30d6\u3067\u3001\u4f5c\u308b\u306e\u306f\u601d\u3063\u305f\u3088\u308a\u3081\u3093\u3069\u304f\u3055\u3044\u306a\u3002\u4f55\u3088\u308a\u3001\u7b46\u8005\u306e\u77e5\u7684\u597d\u5947\u5fc3\u3092\u6e80\u305f\u3055\u306a\u3044\u3002\u5374\u4e0b\u3002
                              \n\u3081\u3052\u305a\u306b\u3001\u63a2\u3059\u30fb\u30fb\u30fb<\/p>\n

                              \u3042\u3063\u305f\u30fb\u30fb\u30fb\u30fbcargo-pgx\u30fb\u30fb\u30fb\u30fb\u3069\u3046\u3084\u3089\u3001Rust\u3067\u7c21\u5358\u306b\u4f5c\u308c\u308b\u3089\u3057\u3044\u3002<\/p>\n

                               <\/p>\n

                              Rust\u306f\u3084\u3063\u3066\u307f\u305f\u3044\u3068\u601d\u3044\u3064\u3064\u3082\u3001\u305a\u3063\u3068\u653e\u7f6e\u3057\u3066\u3044\u307e\u3057\u305f\u3002\u3053\u308c\u306a\u3089\u77e5\u7684\u597d\u5947\u5fc3\u3082\u6e80\u305f\u305b\u307e\u3059\u3002<\/p>\n

                              \u5168\u3066\u306e\u8981\u4ef6\u3092\u6e80\u305f\u305b\u307e\u3057\u305f\uff01<\/p>\n

                              cargo-pgx\u3063\u3066\u306a\u306b\uff1f<\/h1>\n

                              PostgreSQL\u3092 Rust\u3067\u7c21\u5358\u306b\u4f5c\u308b\u305f\u3081\u306ecrate\u3067\u3059\u3002
                              \n\u3053\u308c\u3092\u4f7f\u3046\u3068\u3001\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3066\u6570\u30b3\u30de\u30f3\u30c9\u3092\u6253\u3064\u3060\u3051\u3067\u3001Rust\u3067\u62e1\u5f35\u3092\u4f5c\u308c\u308b\u3068\u306e\u3053\u3068\u30fb\u30fb\u30fb\u82f1\u8a9e\u304c\u308f\u304b\u308b\u4eba\u306f\u3001\u4e0b\u8a18\u306e\u52d5\u753b\u3092\u898b\u308c\u3070\u3001\u3069\u308c\u3060\u3051\u7c21\u5358\u304b\u308f\u304b\u308b\u304b\u3068\u30fb\u30fb\u30fb\u30fb \u7b46\u8005\u306f\u96f0\u56f2\u6c17\u3057\u304b\u898b\u3066\u306a\u3044<\/p>\n

                               <\/p>\n

                              \u3053\u308c\u3092\u4f7f\u3063\u3066\u3044\u304f\u3053\u3068\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n

                              \u7528\u610f\u3059\u308b\u3082\u306e<\/h1>\n
                                \n
                              1. \n
                                  Rust\u304c\u4f7f\u3048\u308b\u74b0\u5883<\/ol>\n<\/li>\n<\/ol>\n

                                   <\/p>\n

                                    \n
                                  1. \n
                                      cargo-gpx<\/ol>\n<\/li>\n<\/ol>\n

                                       <\/p>\n

                                        \u697d\u3057\u3080\u3053\u3053\u308d<\/ol>\n

                                        \u30bb\u30c3\u30c8\u30a2\u30c3\u30d7<\/h1>\n

                                        Rust\u304c\u4f7f\u3048\u308b\u74b0\u5883\u3092\u7528\u610f\u3057\u305f\u3089\u3001cargo-pgx\u3092\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n

                                        $ <\/span>cargo install <\/span>cargo-pgx\r\n<\/code><\/pre>\n
                                        \u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u306b\u5f93\u3063\u3066\u3001\u521d\u671f\u5316\u3057\u307e\u3059\u3002<\/p>\n
                                        $ <\/span>cargo pgx init\r\n<\/code><\/pre>\n
                                        \u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u308b\u6570\u306ePostgreSQL\u306e\u30d3\u30eb\u30c9\u796d\u304c\u59cb\u307e\u308a\u307e\u3059\u3002\u3068\u3066\u3082\u6642\u9593\u304b\u304b\u308a\u307e\u3059\u3002\u7b46\u8005\u306e\u74b0\u5883\u3067\u306f\u300110\u304b\u308914\u307e\u3067\u306e5\u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u30d3\u30eb\u30c9\u304c\u5165\u308a\u307e\u3057\u305f\u3002<\/p>\n
                                        \u6b21\u306b\u3001\u62e1\u5f35\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n
                                        $ <\/span>cargo pgx new ja_tokenizer\r\n<\/code><\/pre>\n
                                        \u3053\u308c\u3067\u3001\u30c6\u30f3\u30d7\u30ec\u304c\u4f5c\u6210\u3055\u308c\u307e\u3059\u3002\u3067\u304d\u305f\u3089\u3001\u8a66\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n
                                        $ <\/span>cd <\/span>ja_tokenizer\r\n$ <\/span>cargo pgx run pg14\r\n<\/code><\/pre>\n
                                        \u3057\u3070\u3089\u304f\u3059\u308b\u3068\u3001psql\u304c\u7acb\u3061\u4e0a\u304c\u308b\u306e\u3067\u3001\u3067\u304d\u305f\u3082\u306e\u3092\u8a66\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
                                        psql<\/span> (<\/span>14<\/span>.<\/span>1<\/span>)<\/span>\r\nType<\/span> \"help\"<\/span> for<\/span> help<\/span>.<\/span>\r\n\r\nja_tokenizer<\/span>=#<\/span> CREATE<\/span> EXTENSION<\/span> ja_tokenizer<\/span>;<\/span>\r\nCREATE<\/span> EXTENSION<\/span>\r\nja_tokenizer<\/span>=#<\/span> SELECT<\/span> hello_ja_tokenizer<\/span>();<\/span>\r\n hello_ja_tokenizer<\/span>\r\n---------------------<\/span>\r\n Hello<\/span>,<\/span> ja_tokenizer<\/span>\r\n(<\/span>1<\/span> row<\/span>)<\/span>\r\n<\/code><\/pre>\n
                                        \u305d\u308c\u3063\u307d\u3044\u3067\u3059\u306d\u3002C\u8a00\u8a9e\u3067\u62e1\u5f35\u3092\u4f5c\u3063\u3066\u3044\u304f\u3088\u308a\u306f\u5727\u5012\u7684\u306b\u697d\u305d\u3046\u3067\u3059\u3002\u3042\u3068\u306f\u3001\u5b9f\u88c5\u3042\u308b\u306e\u307f\uff01<\/p>\n
                                        Rust\u3067\u65e5\u672c\u8a9e\u306e\u5f62\u614b\u7d20\u89e3\u6790<\/h1>\n
                                        \u5f62\u614b\u8981\u7d20\u89e3\u6790\u3068\u3057\u3066\u306f\u3001lindera\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n
                                         <\/p>\n
                                        \u9078\u5b9a\u7406\u7531\u306f\u3001Rust\u3067\u5b8c\u7d50\u3059\u308b\u304b\u3089(mecab-rs\u306b\u632b\u6298\u3057\u305f\u304b\u3089)<\/p>\n
                                        \u307e\u305a\u306fCargo.toml\u306b\u4f9d\u5b58\u95a2\u4fc2\u3092\u8a18\u8f09\u3057\u3066\u3001\u30b5\u30f3\u30d7\u30eb\u307f\u306a\u304c\u3089\u3001\u3055\u3089\u3063\u3068\u5b9f\u88c5\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n
                                        #[pg_extern]<\/span>\r\nfn<\/span> ja_tokenize<\/span>(<\/span>input<\/span>:<\/span> &<\/span>'static<\/span> str<\/span>)<\/span> -><\/span> Vec<\/span><<\/span>String<\/span>><\/span> {<\/span>\r\n    let<\/span> mut<\/span> tokenizer<\/span> =<\/span> Tokenizer<\/span>::<\/span>new<\/span>()<\/span>.unwrap<\/span>();<\/span>\r\n\r\n    let<\/span> tokens<\/span> =<\/span> tokenizer<\/span>.tokenize<\/span>(<\/span>input<\/span>)<\/span>.unwrap<\/span>();<\/span>\r\n\r\n    let<\/span> mut<\/span> ret<\/span> =<\/span> Vec<\/span>::<\/span><<\/span>String<\/span>><\/span>::<\/span>new<\/span>();<\/span>\r\n    for<\/span> token<\/span> in<\/span> tokens<\/span> {<\/span>\r\n        ret<\/span>.push<\/span>(<\/span>String<\/span>::<\/span>from<\/span>(<\/span>token<\/span>.text<\/span>));<\/span>\r\n    }<\/span>\r\n    ret<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                                        \u65e9\u901f\u3001psql\u3067\u8a66\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n
                                        ja_tokenizer<\/span>=#<\/span> DROP<\/span> EXTENSION<\/span> ja_tokenizer<\/span>;<\/span>\r\nDROP<\/span> EXTENSION<\/span>\r\nja_tokenizer<\/span>=#<\/span> CREATE<\/span> EXTENSION<\/span> ja_tokenizer<\/span>;<\/span>\r\nCREATE<\/span> EXTENSION<\/span>\r\nja_tokenizer<\/span>=#<\/span> SELECT<\/span> ja_tokenize<\/span>(<\/span>'\u65b0\u3057\u3044\u65e5\u672c\u306e\u591c\u660e\u3051'<\/span>);<\/span>\r\n       ja_tokenize<\/span>\r\n-------------------------<\/span>\r\n {<\/span>\u65b0\u3057\u3044<\/span>,<\/span>\u65e5\u672c<\/span>,<\/span>\u306e<\/span>,<\/span>\u591c\u660e\u3051<\/span>}<\/span>\r\n(<\/span>1<\/span> row<\/span>)<\/span>\r\n<\/code><\/pre>\n
                                        \u3088\u3057\u3001\u305d\u308c\u3063\u307d\u3044\u3002
                                        \nDROP EXTENSION \u3092\u3057\u306a\u3044\u3068\u30ea\u30ed\u30fc\u30c9\u3055\u308c\u306a\u304f\u3066\u3001\u30cf\u30de\u308a\u307e\u3057\u305f\u3002
                                        \n\u3046\u30fc\u3093\u3002\u3053\u3053\u3067\u30d3\u30eb\u30c9\u304c\u4e00\u6c17\u306b\u91cd\u305f\u304f\u306a\u3063\u305f\u305e\u3002\u3002\u3002\u3002\u3053\u308c\u306b\u3064\u3044\u3066\u306f\u3001\u5bbf\u984c\u306b\u3057\u307e\u3059\u3002<\/p>\n
                                        \u8907\u6570\u306e\u30ec\u30b3\u30fc\u30c9\u3092\u8fd4\u3057\u305f\u3044<\/h1>\n
                                        \u305d\u308c\u3063\u307d\u304f\u3067\u304d\u305f\u306e\u3067\u3059\u304c\u30011\u3064\u306e\u30ec\u30b3\u30fc\u30c9\u3092\u3001\u5168\u7d50\u679c\u3092\u8fd4\u3059\u3068\u3001\u305d\u306e\u5f8cSQL\u3082\u66f8\u304d\u3065\u3089\u3044\u3067\u3059\u3002\u5168\u90e8\u3092Array\u3067\u8fd4\u3059\u306e\u3067\u306f\u306a\u304f\u3066\u3001\u8907\u6570\u306e\u30ec\u30b3\u30fc\u30c9\u306b\u5206\u3051\u3066\u3001\u8fd4\u3059\u3053\u3068\u306f\u3067\u304d\u306a\u3044\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n
                                        \u307e\u3058\u3081\u306b\u3001cargo-pgx\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u8aad\u3093\u3067\u307f\u307e\u3059\u3002<\/p>\n
                                        Return\u00a0impl std::iter::Iterator where T: IntoDatum\u00a0for automatic set-returning-functions (both\u00a0RETURNS SETOF\u00a0and\u00a0RETURNS TABLE (…)\u00a0variants<\/p><\/blockquote>\n
                                        \u3069\u3046\u3084\u3089\u3001Iterartor\u3092\u8fd4\u305b\u3070\u3001\u8907\u6570\u30ec\u30b3\u30fc\u30c9\u306b\u306a\u308b\u6a21\u69d8\u3002example\u3092\u3042\u3055\u3063\u3066\u307f\u308b\u3068\u3001\u305d\u308c\u3063\u307d\u3044\u306e\u304c\u3042\u308b\u306e\u3067\u3001\u4ee5\u4e0b\u3092\u53c2\u8003\u306b\u3084\u3063\u3066\u307f\u307e\u3059\u3002<\/p>\n
                                        #[pg_extern]<\/span>\r\nfn<\/span> split_set<\/span>(<\/span>\r\n    input<\/span>:<\/span> &<\/span>'static<\/span> str<\/span>,<\/span>\r\n    pattern<\/span>:<\/span> &<\/span>'static<\/span> str<\/span>,<\/span>\r\n)<\/span> -><\/span> impl<\/span> std<\/span>::<\/span>iter<\/span>::<\/span>Iterator<\/span><<\/span>Item<\/span> =<\/span> &<\/span>'static<\/span> str<\/span>><\/span> {<\/span>\r\n    input<\/span>.split_terminator<\/span>(<\/span>pattern<\/span>)<\/span>.into_iter<\/span>()<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                                         <\/p>\n
                                        example\u304c\u5145\u5b9f\u3057\u3066\u3044\u3066\u3001\u3088\u3044Crate\u3067\u3059\u306d\u3002\u52a9\u304b\u308a\u307e\u3059\u3002
                                        \n\u5148\u306e\u30b3\u30fc\u30c9\u306e\u623b\u308a\u5024\u3092\u5de5\u592b\u3057\u307e\u3059\u3002<\/p>\n
                                        #[pg_extern]<\/span>\r\nfn<\/span> jat_tokenize<\/span>(<\/span>input<\/span>:<\/span> &<\/span>str<\/span>)<\/span> -><\/span> impl<\/span> std<\/span>::<\/span>iter<\/span>::<\/span>Iterator<\/span><<\/span>Item<\/span> =<\/span> String<\/span>><\/span> {<\/span>\r\n    let<\/span> mut<\/span> tokenizer<\/span> =<\/span> Tokenizer<\/span>::<\/span>new<\/span>(<\/span>Mode<\/span>::<\/span>Normal<\/span>,<\/span> \"\"<\/span>);<\/span>\r\n    let<\/span> tokens<\/span> =<\/span> tokenizer<\/span>.tokenize<\/span>(<\/span>input<\/span>);<\/span>\r\n    let<\/span> mut<\/span> ret<\/span> =<\/span> Vec<\/span>::<\/span><<\/span>String<\/span>><\/span>::<\/span>new<\/span>();<\/span>\r\n    for<\/span> token<\/span> in<\/span> tokens<\/span> {<\/span>\r\n        ret<\/span>.push<\/span>(<\/span>String<\/span>::<\/span>from<\/span>(<\/span>token<\/span>.text<\/span>));<\/span>\r\n    }<\/span>\r\n    ret<\/span>.into_iter<\/span>()<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                                        \u3042\u3089\u305f\u3081\u3066\u3001psql\u3067\u8a66\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n
                                        psql<\/span> (<\/span>14<\/span>.<\/span>1<\/span>)<\/span>\r\nType<\/span> \"help\"<\/span> for<\/span> help<\/span>.<\/span>\r\n\r\nja_tokenizer<\/span>=#<\/span> DROP<\/span> EXTENSION<\/span> ja_tokenizer<\/span>;<\/span>\r\nDROP<\/span> EXTENSION<\/span>\r\nja_tokenizer<\/span>=#<\/span> CREATE<\/span> EXTENSION<\/span> ja_tokenizer<\/span>;<\/span>\r\nCREATE<\/span> EXTENSION<\/span>\r\nja_tokenizer<\/span>=#<\/span> SELECT<\/span> ja_tokenize<\/span>(<\/span>'\u65b0\u3057\u3044\u65e5\u672c\u306e\u591c\u660e\u3051'<\/span>);<\/span>\r\n ja_tokenize<\/span>\r\n-------------<\/span>\r\n \u65b0\u3057\u3044<\/span>\r\n \u65e5\u672c<\/span>\r\n \u306e<\/span>\r\n \u591c\u660e\u3051<\/span>\r\n(<\/span>4<\/span> rows<\/span>)<\/span>\r\n<\/code><\/pre>\n
                                        \u30c1\u30e5\u30fc\u30cb\u30f3\u30b0<\/h1>\n
                                        \u4eca\u306e\u307e\u307e\u3067\u306f\u3001lindera\u306e\u521d\u671f\u5316\u304c\u30ec\u30b3\u30fc\u30c9\u3092\u51e6\u7406\u3059\u308b\u3054\u3068\u306b\u547c\u3070\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u3002\u660e\u3089\u304b\u306b\u52b9\u7387\u304c\u60aa\u305d\u3046\u3067\u3059\u3002<\/p>\n
                                        \u521d\u671f\u5316\u3092\u4e00\u56de\u306b\u3057\u305f\u3044\u306e\u3067\u3059\u304c\u30fb\u30fb\u30fb\u30fbC\u8a00\u8a9e\u3067\u3044\u3046\u3068\u3001\u3053\u308c\u3092static\u306b\u3059\u308b\u306e\u3067\u3059\u304c\u3001Rust\u3067\u306f\u3069\u3046\u306a\u308b\u304b\uff1f
                                        \n\u3053\u306e\u8fba\u3092\u8aad\u3080\u3068\u3001\u4eca\u6642\u306f\u3001once_cell\u3068\u3044\u3046\u3082\u306e\u3092\u4f7f\u3046\u3089\u3057\u3044\u30fb\u30fb\u30fbcargo-pgx\u306e\u4e2d\u3067\u3082once_cell\u304c\u305f\u304f\u3055\u3093\u4f7f\u308f\u308c\u3066\u3044\u308b\u306e\u3067\u3001\u304d\u3063\u3068\u3042\u3063\u3066\u308b\u3068\u9858\u3044\u3064\u3064\u3002\u3002\u3002\u3002<\/p>\n
                                         <\/p>\n
                                        \u30b3\u30f3\u30d1\u30a4\u30e9\u30fc\u306b\u6012\u3089\u308c\u306a\u304c\u3089\u3001\u305d\u308c\u3063\u307d\u304f\u5b9f\u88c5\u30fb\u30fb\u30fb\u30fb(\u5b9f\u306f\u3053\u3053\u304c\u4e00\u756a\u82e6\u52b4\u3057\u307e\u3057\u305f\u3002)<\/p>\n
                                        static<\/span> TOKENIZER<\/span>:<\/span> OnceCell<\/span><<\/span>Mutex<\/span><<\/span>Tokenizer<\/span>>><\/span> =<\/span> OnceCell<\/span>::<\/span>new<\/span>();<\/span>\r\n\r\n#[pg_extern]<\/span>\r\nfn<\/span> ja_tokenize<\/span>(<\/span>input<\/span>:<\/span> &<\/span>str<\/span>)<\/span> -><\/span> impl<\/span> std<\/span>::<\/span>iter<\/span>::<\/span>Iterator<\/span><<\/span>Item<\/span>=<\/span>String<\/span>><\/span> {<\/span>\r\n    let<\/span> t<\/span> =<\/span> TOKENIZER<\/span>.get_or_init<\/span>(||<\/span> Mutex<\/span>::<\/span>new<\/span>(<\/span>Tokenizer<\/span>::<\/span>new<\/span>()<\/span>.unwrap<\/span>()));<\/span>\r\n    let<\/span> result<\/span> =<\/span> t<\/span>.lock<\/span>()<\/span>.unwrap<\/span>()<\/span>.tokenize<\/span>(<\/span>input<\/span>);<\/span>\r\n    let<\/span> mut<\/span> ret<\/span> =<\/span> Vec<\/span>::<\/span><<\/span>String<\/span>><\/span>::<\/span>new<\/span>();<\/span>\r\n    match<\/span> result<\/span> {<\/span>\r\n        Err<\/span>(<\/span>why<\/span>)<\/span> =><\/span> panic!<\/span>(<\/span>\"{:?}\"<\/span>,<\/span> why<\/span>),<\/span>\r\n        Ok<\/span>(<\/span>tokens<\/span>)<\/span> =><\/span> {<\/span>\r\n            for<\/span> token<\/span> in<\/span> tokens<\/span> {<\/span>\r\n                ret<\/span>.push<\/span>(<\/span>String<\/span>::<\/span>from<\/span>(<\/span>token<\/span>.text<\/span>));<\/span>\r\n            }<\/span>\r\n        }<\/span>\r\n    }<\/span>\r\n    ret<\/span>.into_iter<\/span>()<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                                        \u6b63\u76f4\u3001\u307e\u3060\u3001\u7406\u89e3\u304c\u3067\u304d\u3066\u306a\u3044\u306a\u3044\u306a\u304c\u3089\u3001\u3068\u308a\u3042\u3048\u305a\u30af\u30ea\u30a2\u3002<\/p>\n
                                        \u307e\u3068\u3081<\/h1>\n
                                        \u4fbf\u5229\u306a\u6642\u4ee3\u306b\u306a\u308a\u307e\u3057\u305f\u306d\u3002
                                        \nRust\u521d\u5fc3\u8005\u304c\u3001\u52c9\u5f37\u3057\u306a\u304c\u3089\u3001PostgreSQL\u62e1\u5f35\u3092\u4f5c\u308c\u308b\u3088\u3046\u306b\u306a\u308b\u307e\u3067\u534a\u65e5\u3067\u3057\u305f\u3002<\/p>\n
                                        \u305d\u308c\u3067\u306f\u3001\u826f\u3044\u304a\u5e74\u3092\uff01<\/p>\n
                                        \u7a4d\u307f\u6b8b\u3057<\/h1>\n
                                        \u4ee5\u4e0b\u3001\u7a4d\u307f\u6b8b\u3057\u306a\u306e\u3067\u3001\u6687\u3092\u898b\u3064\u3051\u3066\u3084\u3063\u3066\u307f\u3088\u3046\u304b\u3068\u601d\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n
                                        \u30e6\u30fc\u30b6\u8f9e\u66f8\u3092\u4f7f\u3044\u305f\u3044 (\u89e3\u8aac\u8a18\u4e8b\u306f\u3053\u3061\u3089)
                                        \n\u30a8\u30e9\u30fc\u51e6\u7406\u3092\u771f\u9762\u76ee\u306b\u3084\u3063\u3066\u306a\u3044
                                        \n\u30c9\u30ad\u30e5\u30e1\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u3092\u771f\u9762\u76ee\u306b\u3084\u3063\u3066\u306a\u3044
                                        \n\u30a4\u30f3\u30b9\u30c8\u30fc\u30e9\u30fc\u3092\u4f5c\u3063\u3066\u306a\u3044
                                        \n\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3084\u3001lint\u7684\u306a\u3053\u3068\u3092\u3084\u3063\u3066\u306a\u3044
                                        \n\u30d3\u30eb\u30c9\u304c\u91cd\u3044<\/p>\n","protected":false},"excerpt":{"rendered":"
                                        Rust \u521d\u5fc3\u8005\u306esonesuke( https:\/\/twitter.com\/sonesuke )\u3067\u3059\u3002 \u3053\u308c […]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-45216","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\n- Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/45216-2\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:description\" content=\"Rust \u521d\u5fc3\u8005\u306esonesuke( https:\/\/twitter.com\/sonesuke )\u3067\u3059\u3002 \u3053\u308c […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/45216-2\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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