From 2385bf72bd1287b4564eaba5efa5dd276fdb21c4 Mon Sep 17 00:00:00 2001
From: Vladimir Goncharov <morozovsk@gmail.com>
Date: Wed, 17 Nov 2021 14:48:29 +0200
Subject: [PATCH] support for array values in clickhouse driver

---
 plugins/drivers/clickhouse.php | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/plugins/drivers/clickhouse.php b/plugins/drivers/clickhouse.php
index 48a2e68d..5b2d615c 100644
--- a/plugins/drivers/clickhouse.php
+++ b/plugins/drivers/clickhouse.php
@@ -90,8 +90,14 @@ if (isset($_GET["clickhouse"])) {
 		var $num_rows, $_rows, $columns, $meta, $_offset = 0;
 
 		function __construct($result) {
+			foreach ($result['data'] as $item) {
+				$row = array();
+				foreach ($item as $key => $val) {
+					$row[$key] = is_scalar($val) ? $val : json_encode($val, 256); // 256 - JSON_UNESCAPED_UNICODE
+				}
+				$this->_rows[] = $row;
+			}
 			$this->num_rows = $result['rows'];
-			$this->_rows = $result['data'];
 			$this->meta = $result['meta'];
 			$this->columns = array_column($this->meta, 'name');
 			reset($this->_rows);