ALTER TEXT SEARCH CONFIGURATION(7SQL CommandALTER TEXT SEARCH CONFIGURATION(7)NAME
ALTER TEXT SEARCH CONFIGURATION - change the definition of a text
search configuration
SYNOPSIS
ALTER TEXT SEARCH CONFIGURATION name
ADD MAPPING FOR token_type [, ... ] WITH dictionary_name [, ... ]
ALTER TEXT SEARCH CONFIGURATION name
ALTER MAPPING FOR token_type [, ... ] WITH dictionary_name [, ... ]
ALTER TEXT SEARCH CONFIGURATION name
ALTER MAPPING REPLACE old_dictionary WITH new_dictionary
ALTER TEXT SEARCH CONFIGURATION name
ALTER MAPPING FOR token_type [, ... ] REPLACE old_dictionary WITH new_dictionary
ALTER TEXT SEARCH CONFIGURATION name
DROP MAPPING [ IF EXISTS ] FOR token_type [, ... ]
ALTER TEXT SEARCH CONFIGURATION name RENAME TO newname
ALTER TEXT SEARCH CONFIGURATION name OWNER TO newowner
DESCRIPTION
ALTER TEXT SEARCH CONFIGURATION changes the definition of a text search
configuration. You can modify its mappings from token types to dictio‐
naries, or change the configuration's name or owner.
You must be the owner of the configuration to use ALTER TEXT SEARCH
CONFIGURATION.
PARAMETERS
name The name (optionally schema-qualified) of an existing text
search configuration.
token_type
The name of a token type that is emitted by the configuration's
parser.
dictionary_name
The name of a text search dictionary to be consulted for the
specified token type(s). If multiple dictionaries are listed,
they are consulted in the specified order.
old_dictionary
The name of a text search dictionary to be replaced in the map‐
ping.
new_dictionary
The name of a text search dictionary to be substituted for
old_dictionary.
newname
The new name of the text search configuration.
newowner
The new owner of the text search configuration.
The ADD MAPPING FOR form installs a list of dictionaries to be con‐
sulted for the specified token type(s); it is an error if there is
already a mapping for any of the token types. The ALTER MAPPING FOR
form does the same, but first removing any existing mapping for those
token types. The ALTER MAPPING REPLACE forms substitute new_dictionary
for old_dictionary anywhere the latter appears. This is done for only
the specified token types when FOR appears, or for all mappings of the
configuration when it doesn't. The DROP MAPPING form removes all dic‐
tionaries for the specified token type(s), causing tokens of those
types to be ignored by the text search configuration. It is an error if
there is no mapping for the token types, unless IF EXISTS appears.
EXAMPLES
The following example replaces the english dictionary with the swedish
dictionary anywhere that english is used within my_config.
ALTER TEXT SEARCH CONFIGURATION my_config
ALTER MAPPING REPLACE english WITH swedish;
COMPATIBILITY
There is no ALTER TEXT SEARCH CONFIGURATION statement in the SQL stan‐
dard.
SEE ALSO
CREATE TEXT SEARCH CONFIGURATION [create_text_search_configuration(7)],
DROP TEXT SEARCH CONFIGURATION [drop_text_search_configuration(7)]
SQL - Language Statements 2013-04-02ALTER TEXT SEARCH CONFIGURATION(7)
