Internally, a GIN index contains a B-tree index
constructed over keys, where each key is an element of one or more indexed
items (a member of an array, for example) and where each tuple in a leaf
@@ -61,4 +61,4 @@
index key, less than zero for a non-match that is still within the range
to be searched, or greater than zero if the index key is past the range
that could match.
-