diff --git a/lib/postgres.js b/lib/postgres.js
index fbe2067..93420b9 100644
--- a/lib/postgres.js
+++ b/lib/postgres.js
@@ -868,21 +868,24 @@ function escape(val) {
 };
 
 function datatype(p) {
+    var sizeStr = (p.size?'('+p.size+')':'');
     switch (p.type.name) {
         default:
         case 'String':
         case 'JSON':
-            return 'varchar';
+            return 'varchar'+sizeStr;
         case 'Text':
-            return 'text';
+            return 'text'+sizeStr;
         case 'Number':
             switch (p.dataType) {
                 case 'double':
                 case 'float':
-                    return 'float';
+                    return 'float'+sizeStr;
+                case 'numeric':
+                  return 'numeric'+sizeStr;
                 case 'integer':
                 default:
-                    return 'integer';
+                    return 'integer'+sizeStr;
             }
         case 'Date':
             return 'timestamp with time zone';