(improvement)(semantic) optimized llms2qlParser code and support prior exts to llm (#300)

common/src/main/java/com/tencent/supersonic/common/pojo/enums/DataFormatTypeEnum.java

@@ -0,0 +1,19 @@
+package com.tencent.supersonic.common.pojo.enums;
+
+public enum DataFormatTypeEnum {
+
+    PERCENT("percent"),
+
+    DECIMAL("decimal");
+
+    private String name;
+
+    DataFormatTypeEnum(String name) {
+        this.name = name;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+}