Issue #3317852 by adrianopulz, jrglasgow, jcnventura: Uppercase columns errors...

Issue #3317852 by adrianopulz, jrglasgow, jcnventura: Uppercase columns errors on information_schema tables queries

src/SchemaDatabaseSchema_mysql.php

@@ -118,6 +118,26 @@ class SchemaDatabaseSchema_mysql extends DatabaseSchema_mysql implements Databas
     return $comment;
   }
 
+  /**
+   * Force the query result object columns to lowercase.
+   *
+   * @param object $object
+   *   The query result object.
+   *
+   * @return object
+   *   A new object with the properties in lowercase.
+   */
+  protected function queryToLowerCase(&$object) {
+    foreach ($object as $key => $value) {
+      $lckey = strtolower($key);
+      if ($lckey !== $key) {
+        unset($object->{$key});
+        $object->{$lckey} = $value;
+      }
+    }
+    return $object;
+  }
+
   public function inspect($connection = NULL, $table_name = NULL) {
     // Support the deprecated connection parameter.
     if (isset($connection) && $connection != $this->connection->getKey()) {
@@ -148,6 +168,7 @@ class SchemaDatabaseSchema_mysql extends DatabaseSchema_mysql implements Databas
     }
     $res = $this->connection->query($sql, $args);
     foreach ($res as $r) {
+      $r = $this->queryToLowerCase($r);
       $tables[$r->table_name]['description'] = $r->table_comment;
     }
 
@@ -162,6 +183,7 @@ class SchemaDatabaseSchema_mysql extends DatabaseSchema_mysql implements Databas
 
     $res = $this->connection->query($sql, $args);
     foreach ($res as $r) {
+      $r = $this->queryToLowerCase($r);
       $r->new_table_name = schema_unprefix_table($r->table_name, $this->connection);
 
       $numeric = !is_null($r->numeric_scale);
@@ -220,6 +242,7 @@ class SchemaDatabaseSchema_mysql extends DatabaseSchema_mysql implements Databas
 
     $res = $this->connection->query($sql, $args);
     foreach ($res as $r) {
+      $r = $this->queryToLowerCase($r);
       if (isset($r->sub_part) && !is_null($r->sub_part)) {
         $col = [$r->column_name, intval($r->sub_part)];
       }