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ALTER TEXT SEARCH DICTIONARY(7)  SQL Commands  ALTER TEXT SEARCH DICTIONARY(7)


NAME

       ALTER TEXT SEARCH DICTIONARY - change the definition of a text search
       dictionary


SYNOPSIS

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


DESCRIPTION

       ALTER 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.


PARAMETERS

       name   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.


EXAMPLES

       The 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.


COMPATIBILITY

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


SEE ALSO

       CREATE TEXT SEARCH DICTIONARY [create_text_search_dictionary(7)], DROP
       TEXT SEARCH DICTIONARY [drop_text_search_dictionary(7)]

SQL - Language Statements         2014-07-21   ALTER TEXT SEARCH DICTIONARY(7)

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