From 84ac316cdee3e9f8677e09c2e2fad14c6b0e5014 Mon Sep 17 00:00:00 2001
From: Johannes Meyer <johannes.meyer@netways.de>
Date: Mon, 17 Aug 2015 15:05:44 +0200
Subject: [PATCH] IdoQuery: Allow check if a column is case insensitive
 compared

refs #9029
---
 .../Monitoring/Backend/Ido/Query/IdoQuery.php | 25 +++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/modules/monitoring/library/Monitoring/Backend/Ido/Query/IdoQuery.php b/modules/monitoring/library/Monitoring/Backend/Ido/Query/IdoQuery.php
index 0c7276a68..85d9169a9 100644
--- a/modules/monitoring/library/Monitoring/Backend/Ido/Query/IdoQuery.php
+++ b/modules/monitoring/library/Monitoring/Backend/Ido/Query/IdoQuery.php
@@ -553,6 +553,31 @@ abstract class IdoQuery extends DbQuery
         return stripos($mapped, 'UNIX_TIMESTAMP') !== false;
     }
 
+    /**
+     * Return whether the given alias or column name provides case insensitive value comparison
+     *
+     * @param   string  $aliasOrColumn
+     *
+     * @return  bool
+     */
+    public function isCaseInsensitive($aliasOrColumn)
+    {
+        if ($this->isCustomVar($aliasOrColumn)) {
+            return false;
+        }
+
+        $column = $this->getMappedField($aliasOrColumn) ?: $aliasOrColumn;
+        if (! $column) {
+            return false;
+        }
+
+        if (! empty($this->columnsWithoutCollation)) {
+            return in_array($column, $this->columnsWithoutCollation) || strpos($column, 'LOWER') !== 0;
+        }
+
+        return preg_match('/ COLLATE .+$/', $column) === 1;
+    }
+
     /**
      * Apply oracle specific query initialization
      */