68 lines
2.2 KiB
MySQL
68 lines
2.2 KiB
MySQL
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-- Migration: Revert optimization of weekly_report_mv
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-- Date: 2026-01-26
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--
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-- This migration reverts:
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-- 1. Removes created_date column from nodes table
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-- 2. Drops indexes
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-- 3. Restores MV to original structure (include current week, use entries.created_date)
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-- ============================================
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-- Step 1: Recreate MV with original structure
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-- ============================================
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DROP MATERIALIZED VIEW IF EXISTS weekly_report_mv;
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CREATE MATERIALIZED VIEW weekly_report_mv AS
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SELECT
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p.id AS project_id,
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agg.report_year,
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agg.report_week,
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COALESCE(agg.total_score, 0.0000) AS total_score,
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CASE
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WHEN wg.max_score IS NULL THEN COALESCE(agg.total_score, 0.0000)
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ELSE LEAST(COALESCE(agg.total_score, 0.0000), wg.max_score)
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END AS normalized_total_score
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FROM
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projects p
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LEFT JOIN
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(
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SELECT
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n.project_id,
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EXTRACT(ISOYEAR FROM e.created_date)::INTEGER AS report_year,
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EXTRACT(WEEK FROM e.created_date)::INTEGER AS report_week,
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SUM(n.score) AS total_score
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FROM
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nodes n
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JOIN
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entries e ON n.entry_id = e.id
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GROUP BY
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1, 2, 3
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) agg
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ON p.id = agg.project_id
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LEFT JOIN
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weekly_goals wg
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ON wg.project_id = p.id
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AND wg.goal_year = agg.report_year
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AND wg.goal_week = agg.report_week
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WHERE
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p.deleted = FALSE
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ORDER BY
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p.id, agg.report_year, agg.report_week
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WITH DATA;
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CREATE INDEX idx_weekly_report_mv_project_year_week
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ON weekly_report_mv(project_id, report_year, report_week);
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-- ============================================
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-- Step 2: Drop indexes
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-- ============================================
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DROP INDEX IF EXISTS idx_nodes_project_user_created_date;
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DROP INDEX IF EXISTS idx_nodes_created_date_user;
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-- ============================================
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-- Step 3: Remove created_date column from nodes
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-- ============================================
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ALTER TABLE nodes
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DROP COLUMN IF EXISTS created_date;
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COMMENT ON MATERIALIZED VIEW weekly_report_mv IS 'Materialized view aggregating weekly scores by project using ISOYEAR for correct week calculations at year boundaries. Includes all projects via LEFT JOIN. Adds normalized_total_score using weekly_goals.max_score snapshot.';
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