9.10.?uxsql支持

关于文本搜索配置对象的信息可以在uxsql中使用一组命令获得:

\dF{d,p,t}[+] [PATTERN]

可选的+能产生更多细节。

可选参数PATTERN可以是一个文本搜索对象的名称,可以是模式限定的。如果PATTERN被忽略,则所有可见对象的信息都将被显示。PATTERN可以是一个正则表达式并且可以为模式和对象名称提供独立的模式。下面的例子展示了这些特性:

=> \dF *fulltext*
       List of text search configurations
 Schema |  Name        | Description
--------+--------------+-------------
 public | fulltext_cfg |

=> \dF *.fulltext*
       List of text search configurations
 Schema   |  Name        | Description
----------+----------------------------
 fulltext | fulltext_cfg |
 public   | fulltext_cfg |

可用的命令是:

\dF[+] [PATTERN]

列出文本搜索配置(加上+得到更多细节)。

=> \dF russian
            List of text search configurations
   Schema   |  Name   |            Description             
------------+---------+------------------------------------
 ux_catalog | russian | configuration for russian language

=> \dF+ russian
Text search configuration "ux_catalog.russian"
Parser: "ux_catalog.default"
      Token      | Dictionaries 
-----------------+--------------
 asciihword      | english_stem
 asciiword       | english_stem
 email           | simple
 file            | simple
 float           | simple
 host            | simple
 hword           | russian_stem
 hword_asciipart | english_stem
 hword_numpart   | simple
 hword_part      | russian_stem
 int             | simple
 numhword        | simple
 numword         | simple
 sfloat          | simple
 uint            | simple
 url             | simple
 url_path        | simple
 version         | simple
 word            | russian_stem

\dFd[+] [PATTERN]

列出文本搜索词典(加上+得到更多细节)。

=> \dFd
                            List of text search dictionaries
   Schema   |      Name       |                        Description                        
------------+-----------------+-----------------------------------------------------------
 ux_catalog | danish_stem     | snowball stemmer for danish language
 ux_catalog | dutch_stem      | snowball stemmer for dutch language
 ux_catalog | english_stem    | snowball stemmer for english language
 ux_catalog | finnish_stem    | snowball stemmer for finnish language
 ux_catalog | french_stem     | snowball stemmer for french language
 ux_catalog | german_stem     | snowball stemmer for german language
 ux_catalog | hungarian_stem  | snowball stemmer for hungarian language
 ux_catalog | italian_stem    | snowball stemmer for italian language
 ux_catalog | norwegian_stem  | snowball stemmer for norwegian language
 ux_catalog | portuguese_stem | snowball stemmer for portuguese language
 ux_catalog | romanian_stem   | snowball stemmer for romanian language
 ux_catalog | russian_stem    | snowball stemmer for russian language
 ux_catalog | simple          | simple dictionary: just lower case and check for stopword
 ux_catalog | spanish_stem    | snowball stemmer for spanish language
 ux_catalog | swedish_stem    | snowball stemmer for swedish language
 ux_catalog | turkish_stem    | snowball stemmer for turkish language

\dFp[+] [PATTERN]

列出文本搜索解析器(加上+得到更多细节)。

=> \dFp
        List of text search parsers
   Schema   |  Name   |     Description     
------------+---------+---------------------
 ux_catalog | default | default word parser
=> \dFp+
    Text search parser "ux_catalog.default"
     Method      |    Function    | Description 
-----------------+----------------+-------------
 Start parse     | prsd_start     | 
 Get next token  | prsd_nexttoken | 
 End parse       | prsd_end       | 
 Get headline    | prsd_headline  | 
 Get token types | prsd_lextype   | 

        Token types for parser "ux_catalog.default"
   Token name    |               Description                
-----------------+------------------------------------------
 asciihword      | Hyphenated word, all ASCII
 asciiword       | Word, all ASCII
 blank           | Space symbols
 email           | Email address
 entity          | XML entity
 file            | File or path name
 float           | Decimal notation
 host            | Host
 hword           | Hyphenated word, all letters
 hword_asciipart | Hyphenated word part, all ASCII
 hword_numpart   | Hyphenated word part, letters and digits
 hword_part      | Hyphenated word part, all letters
 int             | Signed integer
 numhword        | Hyphenated word, letters and digits
 numword         | Word, letters and digits
 protocol        | Protocol head
 sfloat          | Scientific notation
 tag             | XML tag
 uint            | Unsigned integer
 url             | URL
 url_path        | URL path
 version         | Version number
 word            | Word, all letters
(23 rows)

\dFt[+] [PATTERN]

列出文本搜索模板(加上+得到更多细节)。

=> \dFt
                           List of text search templates
   Schema   |   Name    |                        Description                        
------------+-----------+-----------------------------------------------------------
 ux_catalog | ispell    | ispell dictionary
 ux_catalog | simple    | simple dictionary: just lower case and check for stopword
 ux_catalog | snowball  | snowball stemmer
 ux_catalog | synonym   | synonym dictionary: replace word by its synonym
 ux_catalog | thesaurus | thesaurus dictionary: phrase by phrase substitution

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