CLAP-425 Refactor: task 테이블을 한 번만 스캔하여 조회하도록 수정

Author: joowojr

src/main/resources/db/migration/dev/V20250214408__Modify_Task_Counts_From_Member.sql

@@ -1,14 +1,17 @@
+START TRANSACTION;
+
 UPDATE member m
+    LEFT JOIN (
+        SELECT processor_id,
+               SUM(CASE WHEN task_status = 'IN_PROGRESS' THEN 1 ELSE 0 END) AS in_progress_count,
+               SUM(CASE WHEN task_status = 'IN_REVIEWING' THEN 1 ELSE 0 END) AS in_reviewing_count
+        FROM task
+        GROUP BY processor_id
+    ) t ON m.member_id = t.processor_id
 SET
-    in_progress_task_count = COALESCE((
-                                          SELECT COUNT(*)
-                                          FROM task t
-                                          WHERE t.processor_id = m.member_id
-                                            AND t.task_status = 'IN_PROGRESS'
-                                      ),0),
-    in_reviewing_task_count = COALESCE((
-                                           SELECT COUNT(*)
-                                           FROM task t
-                                           WHERE t.processor_id = m.member_id
-                                             AND t.task_status = 'IN_REVIEWING'
-                                       ),0)
+    m.in_progress_task_count = COALESCE(t.in_progress_count, 0),
+    m.in_reviewing_task_count = COALESCE(t.in_reviewing_count, 0)
+WHERE m.status != 'DELETED';
+
+COMMIT;
+

src/main/resources/db/migration/prod/V20250214408__Modify_Task_Counts_From_Member.sql

@@ -1,14 +1,16 @@
+START TRANSACTION;
+
 UPDATE member m
+    LEFT JOIN (
+        SELECT processor_id,
+               SUM(CASE WHEN task_status = 'IN_PROGRESS' THEN 1 ELSE 0 END) AS in_progress_count,
+               SUM(CASE WHEN task_status = 'IN_REVIEWING' THEN 1 ELSE 0 END) AS in_reviewing_count
+        FROM task
+        GROUP BY processor_id
+    ) t ON m.member_id = t.processor_id
 SET
-    in_progress_task_count = COALESCE((
-                                          SELECT COUNT(*)
-                                          FROM task t
-                                          WHERE t.processor_id = m.member_id
-                                            AND t.task_status = 'IN_PROGRESS'
-                                      ),0),
-    in_reviewing_task_count = COALESCE((
-                                           SELECT COUNT(*)
-                                           FROM task t
-                                           WHERE t.processor_id = m.member_id
-                                             AND t.task_status = 'IN_REVIEWING'
-                                       ),0)
+    m.in_progress_task_count = COALESCE(t.in_progress_count, 0),
+    m.in_reviewing_task_count = COALESCE(t.in_reviewing_count, 0)
+WHERE m.status != 'DELETED';
+
+COMMIT;