Added OFFSET option to select

index.js

@@ -74,6 +74,14 @@ class DB {
     return '';
   }
 
+  _getOffset(offset) {
+    if (!isNaN(Number(offset)) && offset != null) {
+      return " OFFSET " + offset;
+    }
+
+    return "";
+  }
+
   _getReturning(returning) {
     if (typeof returning === 'string') {
       return ` RETURNING ${returning}`;
@@ -106,7 +114,7 @@ class DB {
     );
   }
 
-  select(tableName, columns = '*', where = null, limit = null) {
+  select(tableName, columns = '*', where = null, limit = null, offset = null) {
     let q;
 
     if (typeof columns === 'string') {
@@ -124,6 +132,7 @@ class DB {
 
     q += this._getWhere(where);
     q += this._getLimit(limit);
+    q += this._getOffset(offset);
 
     return this._sendResponse(q);
   }