alter_text_search_configuration(7) - phpMan

ALTER TEXT SEARCH CONFIGURATION()          SQL Commands         ALTER TEXT SEARCH CONFIGURATION()



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_dic-
       tionary 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  map-
       ping 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(l)]



SQL - Language Statements                   2011-09-22          ALTER TEXT SEARCH CONFIGURATION()

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