perf: parquet based data export

sdgb-api/src/title/model/get_user_region_api/mod.rs

@@ -1,4 +1,5 @@
 use bincode::{Decode, Encode};
+use parquet_derive::ParquetRecordWriter;
 use serde::{Deserialize, Serialize};
 
 #[derive(Default, Debug, Clone, PartialEq, Serialize, Deserialize)]
@@ -13,6 +14,42 @@ impl From<u32> for GetUserRegionApi {
     }
 }
 
+impl From<GetUserRegionApiResp> for Vec<UserRegionFlatten> {
+    fn from(
+        GetUserRegionApiResp {
+            user_id,
+            user_region_list,
+            ..
+        }: GetUserRegionApiResp,
+    ) -> Self {
+        user_region_list
+            .into_iter()
+            .map(
+                |UserRegion {
+                     region_id,
+                     play_count,
+                     created,
+                 }| {
+                    UserRegionFlatten {
+                        user_id,
+                        region_id,
+                        play_count,
+                        created,
+                    }
+                },
+            )
+            .collect()
+    }
+}
+
+#[derive(Default, Debug, Clone, PartialEq, ParquetRecordWriter)]
+pub struct UserRegionFlatten {
+    pub user_id: u32,
+    pub region_id: u32,
+    pub play_count: i64,
+    pub created: String,
+}
+
 #[derive(Default, Debug, Clone, PartialEq, Serialize, Deserialize, Encode, Decode)]
 #[serde(rename_all = "camelCase")]
 pub struct GetUserRegionApiResp {