Help:$smwgEnabledFulltextSearch

is a configuration parameter that sets whether full-text search support may be used. It is specific to a relational data store and currently supports MySQL/MariaDBCiteRef::gh:smw:1481 and SQLiteCiteRef::gh:smw:1801 while PostgreSQLCiteRef::gh:smw:1956CiteRef::postgres:ft:vector is currently not supported. It was introduced in .CiteRef::gh:smw:1481

Default setting
This means that full-text search support is not available.

Changing the default setting
To modify this configuration parameter, add one of the following lines to your "LocalSettings.php" file after the  call:

This means that full-text search support is available. The wiki will now store text elements using a separate table in order for the relational back-end to use special full-text index operations.
 * Enable the full-text search feature