ALTER TEXT SEARCH DICTIONARY name ( option [ = value ] [, ... ] ) ALTER TEXT SEARCH DICTIONARY name RENAME TO new_name ALTER TEXT SEARCH DICTIONARY name OWNER TO { new_owner | CURRENT_ROLE | CURRENT_USER | SESSION_USER } ALTER TEXT SEARCH DICTIONARY name SET SCHEMA new_schema
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.
name
option
value
new_name
new_owner
new_schema
Template-specific options can appear in any order.
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.
There is no ALTER TEXT SEARCH DICTIONARY statement in the SQL standard.