# File lib/active_record/connection_adapters/postgresql_adapter.rb, line 795 def type_to_sql(type, limit = nil, precision = nil, scale = nil) return super unless type.to_s == 'integer' case limit when 1..2; 'smallint' when 3..4, nil; 'integer' when 5..8; 'bigint' else raise(ActiveRecordError, "No integer type has byte size #{limit}. Use a numeric with precision 0 instead.") end end