Merge pull request #31 from Micasou/master

Fixed metrics-postgres-query.rb to have proper default return value, …

Author: eheydrick

CHANGELOG.md

@@ -4,6 +4,8 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 This CHANGELOG follows the format listed at [Keep A Changelog](http://keepachangelog.com/)
 
 ## [Unreleased]
+### Fixed
+- metrics-postgres-query.rb: Restored default value to only return first value in query. (@Micasou)
 
 ## [1.1.0] - 2017-04-20
 ### Added

bin/metrics-postgres-query.rb

@@ -107,11 +107,11 @@ def run
     value = if config[:count_tuples]
               res.ntuples
             else
-              res.values
+              res.first.values.first
             end
 
     if config[:multirow] && !config[:count_tuples]
-      value.each do |row|
+      res.values.each do |row|
         output "#{config[:scheme]}.#{row[0]}", row[1]
       end
     else