Rusty Conover <rconover(at)infogears(dot)com> writes:
> Since 100% of my queries are for retrieval, I should use GIN but it
> never appears to be used unlike how GIST indexes are:
You haven't shown us either the table or the index declaration,
so it's a bit tough to comment on that. It's worth noting though
that your GIST example appears to rely on a nonstandard operator class.
regards, tom lane