Issue #3408393 by omarlopesino: Add OFFSET clause to SalesforceSelectQuery [D8 or higher]

src/SelectQuery.php

@@ -44,6 +44,13 @@ class SelectQuery implements SelectQueryInterface {
    */
   public $conditions = [];
 
+  /**
+   * Starting elements number for query result.
+   *
+   * @var int
+   */
+  public $offset;
+
   /**
    * SelectQuery constructor.
    *
@@ -125,6 +132,10 @@ class SelectQuery implements SelectQueryInterface {
       $query .= "+LIMIT+" . (int) $this->limit;
     }
 
+    if ($this->offset) {
+      $query .= "+OFFSET+" . (int) $this->offset;
+    }
+
     return $query;
   }
   // @codingStandardsIgnoreEnd