<sect2>
<title>Using Indexes</title>
<para>Ordinarily, indexes invisibly speed up data access: once the
- index is built, the query planner tranparently decides when to use index
+ index is built, the query planner transparently decides when to use index
information to speed up a query plan. Unfortunately, the PostgreSQL query
planner does not optimize the use of GiST indexes well, so sometimes searches which should use a spatial index instead default to a sequence
scan of the whole table.</para>