alter_text_search_dictionary.7 - Online Linux Manual Page

.\" auto-generated by docbook2man-spec $Revision: 1.1.1.1 $ ALTER TEXT SEARCH DICTIONARY - Online Linux Manual PageSection : 7
Updated : 2014-02-17
Source : SQL - Language Statements
Note : SQL Commands

NAMEALTER TEXT SEARCH DICTIONARY − change the definition of a text search dictionary

SYNOPSISALTER TEXT SEARCH DICTIONARY name ( option [ = value ] [, ... ] ) ALTER TEXT SEARCH DICTIONARY name RENAME TO newname ALTER TEXT SEARCH DICTIONARY name OWNER TO newowner

DESCRIPTIONALTER TEXT SEARCH DICTIONARY changes the definition of a text search dictionary. You can change the dictionary's template-specific options, or change the dictionary's name or owner. You must be the owner of the dictionary to use ALTER TEXT SEARCH DICTIONARY.

PARAMETERSname The name (optionally schema-qualified) of an existing text search dictionary. option The name of a template-specific option to be set for this dictionary. value The new value to use for a template-specific option. If the equal sign and value are omitted, then any previous setting for the option is removed from the dictionary, allowing the default to be used. newname The new name of the text search dictionary. newowner The new owner of the text search dictionary. Template-specific options can appear in any order.

EXAMPLESThe following example command changes the stopword list for a Snowball-based dictionary. Other parameters remain unchanged. ALTER TEXT SEARCH DICTIONARY my_dict ( StopWords = newrussian ); The following example command changes the language option to dutch, and removes the stopword option entirely. ALTER TEXT SEARCH DICTIONARY my_dict ( language = dutch, StopWords ); The following example command ``updates'' the dictionary's definition without actually changing anything. ALTER TEXT SEARCH DICTIONARY my_dict ( dummy ); (The reason this works is that the option removal code doesn't complain if there is no such option.) This trick is useful when changing configuration files for the dictionary: the ALTER will force existing database sessions to re-read the configuration files, which otherwise they would never do if they had read them earlier.

COMPATIBILITYThere is no ALTER TEXT SEARCH DICTIONARY statement in the SQL standard.

SEE ALSOCREATE TEXT SEARCH DICTIONARY [create_text_search_dictionary(7)], DROP TEXT SEARCH DICTIONARY [drop_text_search_dictionary(7)] 0

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