# File lib/dbd/pg/tuples.rb, line 23
23:     def column_info
24:         a = []
25:         0.upto(@pg_result.num_fields-1) do |i|
26:             str = @pg_result.fname(i)
27: 
28:             typeinfo = nil
29: 
30:             begin
31:                 typmod = @pg_result.fmod(i)
32:             rescue
33:             end
34: 
35:             if typmod and typ = @pg_result.ftype(i)
36:                 res = @db._exec("select format_type(#{typ}, #{typmod})")
37:                 typeinfo = DBI::DBD::Pg.parse_type(res[0].values[0])
38:             end
39: 
40:             h = { "name" => str }.merge(@db.type_map[@pg_result.ftype(i)])
41: 
42:             if typeinfo
43:                 h["precision"]     = typeinfo[:size]
44:                 h["scale"]         = typeinfo[:decimal]
45:                 h["type"]          = typeinfo[:type]
46:                 h["array_of_type"] = typeinfo[:array]
47: 
48:                 if typeinfo[:array]
49:                     h['dbi_type'] = 
50:                         DBI::DBD::Pg::Type::Array.new(
51:                             DBI::TypeUtil.type_name_to_module(typeinfo[:type])
52:                     )
53:                 end
54:             end
55: 
56:             a.push h
57:         end
58: 
59:         return a
60:     end