[improvement](chat) remove nativeQuery config in chat (#394)

common/src/main/java/com/tencent/supersonic/common/pojo/QueryType.java

@@ -0,0 +1,23 @@
+package com.tencent.supersonic.common.pojo;
+
+/***
+ * Query Type
+ */
+public enum QueryType {
+    /**
+     * queries with metrics included in the select statement
+     */
+    METRIC,
+    /**
+     * queries with entity unique key included in the select statement
+     */
+    ENTITY,
+    /**
+     * the other queries
+     */
+    OTHER;
+
+    public boolean isNativeAggQuery() {
+        return ENTITY.equals(this);
+    }
+}