Fix hstore parse number conversion

lib/dialects/postgres/hstore.js

+var _ = require('lodash')
+
 module.exports = {
 module.exports = {
   stringifyPart: function(part) {
   stringifyPart: function(part) {
     switch(typeof part) {
     switch(typeof part) {
@@ -30,7 +32,7 @@ module.exports = {
       case '[':
       case '[':
         return JSON.parse(part)
         return JSON.parse(part)
       default:
       default:
-        return part
+        return _.isFinite(part) ? parseFloat(part) : part
     }
     }
   },
   },
   parse: function(string) {
   parse: function(string) {

test/postgres/hstore.test.js

@@ -116,7 +116,7 @@ if (dialect.match(/^postgres/)) {
       })
       })
 
 
       it('should handle multiple keys with different types of values', function(done) {
       it('should handle multiple keys with different types of values', function(done) {
-        expect(hstore.parse('"true"=>true,"false"=>false,"null"=>NULL,"undefined"=>NULL,"integer"=>1,"array"=>"[1,\\"2\\"]","object"=>"{\\"object\\":\\"value\\"}"')).to.deep.equal({ true: true, false: false, null: null, undefined: null, integer: "1", array: [1,'2'], object: { object: 'value' }})
+        expect(hstore.parse('"true"=>true,"false"=>false,"null"=>NULL,"undefined"=>NULL,"integer"=>1,"array"=>"[1,\\"2\\"]","object"=>"{\\"object\\":\\"value\\"}"')).to.deep.equal({ true: true, false: false, null: null, undefined: null, integer: 1, array: [1,'2'], object: { object: 'value' }})
         done()
         done()
       })
       })
     })
     })