使用Ruby和数据库[PostgreSQL]

Question

I'm not versed working with DBs, but everytime I'm getting data from the DB with res = con.exec "SELECT * FROM #{table}" and then res.values I get all the values as if they were strings, for example:

[["1", "2017-01-14", "f"]]

Can I get Dates as Dates, integers as integers, etc.? or do I have to parse everything?

EDIT: I'm using Ruby without Rails.

Answer 1

The documentation for the PG gem details how to handle basic typecasting:

conn.type_map_for_results = PG::BasicTypeMapForResults.new conn
conn.exec("select 1, now(), '{2,3}'::int[]").values
    # => [[1, 2014-09-21 20:51:56 +0200, [2, 3]]]