Sergey Konoplev <gray.ru@gmail.com> writes:
> Is there a way (or workaround) to make it use i_test_table__created
> for frequent and i_test_table__tsvector_1 for sparse words?
You would need to update to 8.4 for that --- 8.3 does not have any
support for statistics estimation for @@.
(Whether 8.4 would get it right is a different question, but at least
it has a chance. 8.3 has none.)
regards, tom lane