>From http://sequel.rubyforge.org/rdoc/files/doc/prepared_statements_rdoc.html

"PostgreSQL
If you are using the ruby-postgres or postgres-pr driver, PostgreSQL
uses the default emulated support. If you are using ruby-pg, there is
native support, but it may require type specifiers. This is easy if
you have direct control over the SQL string, but since Sequel
abstracts that, the types can be specified another way. This is done
by adding a __* suffix to the placeholder symbol (e.g. :$name__text,
which will be compiled to “$1::text” in the SQL). Prepared statements
are always server side."

What's meant by "default emulated support"?  Do I care about this?

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