diff --git a/doc/src/sgml/textsearch.sgml b/doc/src/sgml/textsearch.sgml
index 5124bd80ae..ee2812acca 100644
--- a/doc/src/sgml/textsearch.sgml
+++ b/doc/src/sgml/textsearch.sgml
@@ -329,8 +329,27 @@ The form text @@ tsquery
is equivalent to to_tsvector(x) @@ y.
The form text @@ text
is equivalent to to_tsvector(x) @@ plainto_tsquery(y).
-Note that the results of these forms will depend on the setting of .
+
+
+
+Configurations
+
+
+configurations
+
+
+
+The above are all simple text search examples. As mentioned before, full
+text search functionality includes the ability to do many more things:
+skip indexing certain words (stop words), process synonyms, and use
+sophisticated parsing, e.g. parse based on more than just white space.
+This functionality is controlled by configurations>.
+Fortunately, PostgreSQL> comes with predefined
+configurations for many languages. (psql>'s \dF>
+shows all predefined configurations.) During installation an appropriate
+configuration was selected and was set accordingly. If you
+need to change it, see .
@@ -2646,15 +2665,12 @@ database you must be careful to reference the proper text search
configuration. This can be done by either setting
default_text_search_config> in each session or supplying the
configuration name in every function call, e.g. to_tsquery('french',
-'friend'), to_tsvector('english', col). If you are using an expression index,
-you must also be sure to use the proper text search configuration every
-time an INSERT> or UPDATE> is executed because these
-will modify the index, or you can embed the configuration name into the
-expression index, e.g.:
+'friend'), to_tsvector('english', col). If you are using an expression
+index you must embed the configuration name into the expression index, e.g.:
CREATE INDEX pgweb_idx ON pgweb USING gin(to_tsvector('french', title || body));
-And if you do that, make sure you specify the configuration name in the
+And for an expression index, specify the configuration name in the
WHERE> clause as well so the expression index will be used.