fetchPairs() supports floats in keys

Author: dg

src/Database/Helpers.php

@@ -262,7 +262,7 @@ public static function toPairs(array $rows, $key = null, $value = null): array
 			}
 		} else {
 			foreach ($rows as $row) {
-				$return[is_object($row[$key]) ? (string) $row[$key] : $row[$key]] = ($value === null ? $row : $row[$value]);
+				$return[(string) $row[$key]] = ($value === null ? $row : $row[$value]);
 			}
 		}
 

tests/Database/ResultSet.fetchPairs().phpt

@@ -128,3 +128,9 @@ Assert::same([
 	'2002-02-02 00:00:00' => 'David Grudl',
 	'2002-02-20 00:00:00' => 'Jakub Vrana',
 ], $pairs);
+
+
+$pairs = $context->query('SELECT 1.5 AS k, 1 AS v')->fetchPairs();
+Assert::equal([
+	'1.5' => 1,
+], $pairs);