alter_text_search_configuration - phpMan

ALTER TEXT SEARCH CONFIGURATION()SQL CommandsALTER TEXT SEARCH CONFIGURATION()



NAME
       ALTER TEXT SEARCH CONFIGURATION - change the definition of a text search configura-
       tion


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  configura-
       tion.  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 configura-
              tion.

       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 config-
       uration 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(l)]



SQL - Language Statements         2009-03-12 ALTER TEXT SEARCH CONFIGURATION()

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