pass default data for integer

Author: kojirock5260

src/Parser/CreateTableParser.php

@@ -669,7 +669,8 @@ private function extractTokens(string $sql, array $source_map): array
         $i = 0;
         $len = \count($source_map);
         while ($i < $len) {
-            $token = \substr($sql, $source_map[$i][0], $source_map[$i][1]) ?: '';
+            $token = \substr($sql, $source_map[$i][0], $source_map[$i][1]);
+            $token = $token !== false ? $token : '';
             $tokenUpper = \strtoupper($token);
             if (\array_key_exists($tokenUpper, $maps)) {
                 $found = false;

tests/fixtures/create_table.sql

@@ -13,7 +13,7 @@ CREATE TABLE `video_game_characters` (
 	`nullable_field_default_0` tinyint(3) DEFAULT '0',
 	`some_float` float DEFAULT '0.00',
 	`total_games` int(11) UNSIGNED NOT NULL DEFAULT '0',
-	`lives` int(11) UNSIGNED NOT NULL DEFAULT '0',
+	`lives` int(11) UNSIGNED NOT NULL DEFAULT 0,
 	`created_on` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
 	`modified_on` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
 	`deleted_on` timestamp NULL DEFAULT NULL,