selectdb batch stream load

job-bytedance/src/main/java/cn/com/ctop/job/bytedance/data/utils/JsonUtils.java

@@ -13,7 +13,7 @@ public class JsonUtils {
     // 正则预编译
     private static final Pattern INVALID_PREFIX = Pattern.compile("^[^a-zA-Z0-9]+");
     private static final Pattern INVALID_SUFFIX = Pattern.compile("[^a-zA-Z0-9]+$");
-    private static final Pattern LETTER_NUMBER = Pattern.compile("([a-zA-Z])([0-9])");
+    private static final Pattern LETTER_NUMBER = Pattern.compile("([a-z])([0-9])");
     //private static final Pattern NUMBER_LETTER = Pattern.compile("([0-9])([a-zA-Z])");
     private static final Pattern CAMEL_CASE = Pattern.compile("([a-z])([A-Z])");