4.6.1: Медиана из 4 недель вместо 12

play-life-backend/main.go

@@ -4591,7 +4591,7 @@ func (a *App) setupWeeklyGoals() error {
 				EXTRACT(WEEK FROM CURRENT_DATE)::INTEGER AS c_week
 		),
 		goal_metrics AS (
-			-- Считаем медиану на основе данных за 3 месяца (12 недель), исключая текущую неделю
+			-- Считаем медиану на основе данных за последние 4 недели, исключая текущую неделю
 			SELECT 
 				project_id,
 				PERCENTILE_CONT(0.5) WITHIN GROUP (ORDER BY normalized_total_score) AS median_score
@@ -4611,7 +4611,7 @@ func (a *App) setupWeeklyGoals() error {
 					OR (report_year = EXTRACT(ISOYEAR FROM CURRENT_DATE)::INTEGER 
 						AND report_week < EXTRACT(WEEK FROM CURRENT_DATE)::INTEGER)
 			) sub
-			WHERE rn <= 12 -- Берем историю за последние 12 недель (3 месяца), исключая текущую неделю
+			WHERE rn <= 4 -- Берем историю за последние 4 недели, исключая текущую неделю
 			GROUP BY project_id
 		)
 		INSERT INTO weekly_goals (

play-life-backend/migrations/000008_change_median_to_4_weeks.down.sql

@@ -0,0 +1,34 @@
+-- Migration: Revert median calculation back to 12 weeks
+-- Date: 2026-02-02
+--
+-- This migration reverts projects_median_mv back to using 12 weeks.
+
+DROP MATERIALIZED VIEW IF EXISTS projects_median_mv;
+
+CREATE MATERIALIZED VIEW projects_median_mv AS
+SELECT
+    p.id AS project_id,
+    p.user_id,
+    PERCENTILE_CONT(0.5) WITHIN GROUP (ORDER BY normalized_total_score) AS median_score
+FROM (
+    SELECT 
+        project_id, 
+        normalized_total_score,
+        report_year,
+        report_week,
+        ROW_NUMBER() OVER (PARTITION BY project_id ORDER BY report_year DESC, report_week DESC) as rn
+    FROM weekly_report_mv
+    WHERE 
+        (report_year < EXTRACT(ISOYEAR FROM CURRENT_DATE)::INTEGER)
+        OR (report_year = EXTRACT(ISOYEAR FROM CURRENT_DATE)::INTEGER 
+            AND report_week < EXTRACT(WEEK FROM CURRENT_DATE)::INTEGER)
+) sub
+JOIN projects p ON p.id = sub.project_id
+WHERE rn <= 12 AND p.deleted = FALSE
+GROUP BY p.id, p.user_id
+WITH DATA;
+
+CREATE INDEX idx_projects_median_mv_project_id ON projects_median_mv(project_id);
+CREATE INDEX idx_projects_median_mv_user_id ON projects_median_mv(user_id);
+
+COMMENT ON MATERIALIZED VIEW projects_median_mv IS 'Materialized view calculating median score for each project based on last 12 weeks of historical data. Includes user_id for multi-tenant support.';

play-life-backend/migrations/000008_change_median_to_4_weeks.up.sql

@@ -0,0 +1,35 @@
+-- Migration: Change median calculation from 12 weeks to 4 weeks
+-- Date: 2026-02-02
+--
+-- This migration updates projects_median_mv to calculate median based on
+-- the last 4 weeks instead of 12 weeks.
+
+DROP MATERIALIZED VIEW IF EXISTS projects_median_mv;
+
+CREATE MATERIALIZED VIEW projects_median_mv AS
+SELECT
+    p.id AS project_id,
+    p.user_id,
+    PERCENTILE_CONT(0.5) WITHIN GROUP (ORDER BY normalized_total_score) AS median_score
+FROM (
+    SELECT 
+        project_id, 
+        normalized_total_score,
+        report_year,
+        report_week,
+        ROW_NUMBER() OVER (PARTITION BY project_id ORDER BY report_year DESC, report_week DESC) as rn
+    FROM weekly_report_mv
+    WHERE 
+        (report_year < EXTRACT(ISOYEAR FROM CURRENT_DATE)::INTEGER)
+        OR (report_year = EXTRACT(ISOYEAR FROM CURRENT_DATE)::INTEGER 
+            AND report_week < EXTRACT(WEEK FROM CURRENT_DATE)::INTEGER)
+) sub
+JOIN projects p ON p.id = sub.project_id
+WHERE rn <= 4 AND p.deleted = FALSE
+GROUP BY p.id, p.user_id
+WITH DATA;
+
+CREATE INDEX idx_projects_median_mv_project_id ON projects_median_mv(project_id);
+CREATE INDEX idx_projects_median_mv_user_id ON projects_median_mv(user_id);
+
+COMMENT ON MATERIALIZED VIEW projects_median_mv IS 'Materialized view calculating median score for each project based on last 4 weeks of historical data. Includes user_id for multi-tenant support.';