Provided by: postgresql-client-8.4_8.4.11-1_amd64 bug

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 dictionaries, 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 mapping.

       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 consulted 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 dictionaries 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 standard.

SEE ALSO

       CREATE TEXT SEARCH CONFIGURATION [create_text_search_configuration(7)], DROP  TEXT  SEARCH
       CONFIGURATION [drop_text_search_configuration(7)]