12.10. psql Support#
Information about text search configuration objects can be obtained inpsql using a set of commands:
\dF{d,p,t}[+] [PATTERN] An optional+ produces more details.
The optional parameterPATTERN can be the name of a text search object, optionally schema-qualified. IfPATTERN is omitted then information about all visible objects will be displayed.PATTERN can be a regular expression and can provideseparate patterns for the schema and object names. The following examples illustrate this:
=> \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 |
The available commands are:
\dF[+] [PATTERN]List text search configurations (add
+for more detail).=> \dF russian List of text search configurations Schema | Name | Description------------+---------+------------------------------------ pg_catalog | russian | configuration for russian language=> \dF+ russianText search configuration "pg_catalog.russian"Parser: "pg_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]List text search dictionaries (add
+for more detail).=> \dFd List of text search dictionaries Schema | Name | Description------------+-----------------+----------------------------------------------------------- pg_catalog | arabic_stem | snowball stemmer for arabic language pg_catalog | armenian_stem | snowball stemmer for armenian language pg_catalog | basque_stem | snowball stemmer for basque language pg_catalog | catalan_stem | snowball stemmer for catalan language pg_catalog | danish_stem | snowball stemmer for danish language pg_catalog | dutch_stem | snowball stemmer for dutch language pg_catalog | english_stem | snowball stemmer for english language pg_catalog | finnish_stem | snowball stemmer for finnish language pg_catalog | french_stem | snowball stemmer for french language pg_catalog | german_stem | snowball stemmer for german language pg_catalog | greek_stem | snowball stemmer for greek language pg_catalog | hindi_stem | snowball stemmer for hindi language pg_catalog | hungarian_stem | snowball stemmer for hungarian language pg_catalog | indonesian_stem | snowball stemmer for indonesian language pg_catalog | irish_stem | snowball stemmer for irish language pg_catalog | italian_stem | snowball stemmer for italian language pg_catalog | lithuanian_stem | snowball stemmer for lithuanian language pg_catalog | nepali_stem | snowball stemmer for nepali language pg_catalog | norwegian_stem | snowball stemmer for norwegian language pg_catalog | portuguese_stem | snowball stemmer for portuguese language pg_catalog | romanian_stem | snowball stemmer for romanian language pg_catalog | russian_stem | snowball stemmer for russian language pg_catalog | serbian_stem | snowball stemmer for serbian language pg_catalog | simple | simple dictionary: just lower case and check for stopword pg_catalog | spanish_stem | snowball stemmer for spanish language pg_catalog | swedish_stem | snowball stemmer for swedish language pg_catalog | tamil_stem | snowball stemmer for tamil language pg_catalog | turkish_stem | snowball stemmer for turkish language pg_catalog | yiddish_stem | snowball stemmer for yiddish language
\dFp[+] [PATTERN]List text search parsers (add
+for more detail).=> \dFp List of text search parsers Schema | Name | Description------------+---------+--------------------- pg_catalog | default | default word parser=> \dFp+ Text search parser "pg_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 "pg_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]List text search templates (add
+for more detail).=> \dFt List of text search templates Schema | Name | Description------------+-----------+----------------------------------------------------------- pg_catalog | ispell | ispell dictionary pg_catalog | simple | simple dictionary: just lower case and check for stopword pg_catalog | snowball | snowball stemmer pg_catalog | synonym | synonym dictionary: replace word by its synonym pg_catalog | thesaurus | thesaurus dictionary: phrase by phrase substitution