Add lateral joins

src/Pgsql/Select.php

@@ -19,4 +19,37 @@
  */
 class Select extends Common\Select
 {
+    /**
+     *
+     * Adds a LATERAL JOIN to an aliased subselect and columns to the query.
+     *
+     * @param string $join The join type: inner, left, natural, etc.
+     *
+     * @param string|Select $spec If a Select
+     * object, use as the sub-select; if a string, the sub-select
+     * command string.
+     *
+     * @param string $name The alias name for the sub-select.
+     *
+     * @param string $cond Join on this condition.
+     *
+     * @param array $bind Values to bind to ?-placeholders in the condition.
+     *
+     * @return $this
+     *
+     * @throws Exception
+     *
+     */
+    public function lateralJoinSubSelect($join, $spec, $name, $cond = null, array $bind = array())
+    {
+        $join = strtoupper(ltrim("$join JOIN LATERAL"));
+        $this->addTableRef("$join (SELECT ...) AS", $name);
+
+        $spec = $this->subSelect($spec, '            ');
+        $name = $this->quoter->quoteName($name);
+        $cond = $this->fixJoinCondition($cond, $bind);
+
+        $text = rtrim("$join ($spec        ) $name $cond");
+        return $this->addJoin('        ' . $text);
+    }
 }