ALTER TEXT SEARCH DICTIONPostgreSQL 15.7 DocumeALTERoTEXT 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 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
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.
new_name
The new name of the text search dictionary.
new_owner
The new owner of the text search dictionary.
new_schema
The new schema for 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))
PostgreSQL 15.7 2024 ALTER TEXT SEARCH DICTIONARY(7)
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