61 lines
2.6 KiB
MySQL
61 lines
2.6 KiB
MySQL
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-- Migration: Add group_name field to wishlist_items and tasks tables
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-- Date: 2026-02-XX
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--
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-- This migration:
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-- 1. Adds group_name field to wishlist_items (replacing project_id)
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-- 2. Migrates existing data from project_id to group_name
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-- 3. Removes project_id column from wishlist_items
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-- 4. Adds group_name field to tasks
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-- 5. Creates materialized view for group suggestions
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-- Step 1: Add group_name to wishlist_items
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ALTER TABLE wishlist_items
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ADD COLUMN group_name VARCHAR(255);
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-- Step 2: Migrate existing data from project_id to group_name
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UPDATE wishlist_items wi
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SET group_name = p.name
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FROM projects p
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WHERE wi.project_id = p.id AND wi.project_id IS NOT NULL;
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-- Step 3: Remove project_id column and its index
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DROP INDEX IF EXISTS idx_wishlist_items_project_id;
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ALTER TABLE wishlist_items
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DROP COLUMN project_id;
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-- Step 4: Add group_name to tasks
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ALTER TABLE tasks
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ADD COLUMN group_name VARCHAR(255);
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-- Step 5: Create indexes on group_name
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CREATE INDEX idx_wishlist_items_group_name ON wishlist_items(group_name) WHERE group_name IS NOT NULL;
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CREATE INDEX idx_tasks_group_name ON tasks(group_name) WHERE group_name IS NOT NULL;
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-- Step 6: Create materialized view for group suggestions
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CREATE MATERIALIZED VIEW user_group_suggestions_mv AS
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SELECT DISTINCT user_id, group_name FROM (
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-- Желания пользователя (собственные)
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SELECT wi.user_id, wi.group_name FROM wishlist_items wi
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WHERE wi.deleted = FALSE AND wi.group_name IS NOT NULL AND wi.group_name != ''
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UNION
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-- Желания с досок, на которых пользователь участник
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SELECT wbm.user_id, wi.group_name FROM wishlist_items wi
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JOIN wishlist_board_members wbm ON wi.board_id = wbm.board_id
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WHERE wi.deleted = FALSE AND wi.group_name IS NOT NULL AND wi.group_name != ''
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UNION
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-- Задачи пользователя
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SELECT t.user_id, t.group_name FROM tasks t
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WHERE t.deleted = FALSE AND t.group_name IS NOT NULL AND t.group_name != ''
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UNION
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-- Имена проектов пользователя
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SELECT p.user_id, p.name FROM projects p
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WHERE p.deleted = FALSE
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) sub;
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-- Step 7: Create unique index for CONCURRENT refresh
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CREATE UNIQUE INDEX idx_user_group_suggestions_mv_user_group ON user_group_suggestions_mv(user_id, group_name);
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COMMENT ON COLUMN wishlist_items.group_name IS 'Group name for wishlist item (free text, replaces project_id)';
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COMMENT ON COLUMN tasks.group_name IS 'Group name for task (free text)';
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COMMENT ON MATERIALIZED VIEW user_group_suggestions_mv IS 'Materialized view for group name suggestions per user';
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