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## Database Schema Enhancements ### Migration 19 - Fixed - Removed invalid composite index on session(visitor_id, user_id) - visitor_id column doesn't exist in session table - Fixed migration to only create valid indexes ### Migration 20 - New Constraints (with rollback support) - Added websiteId foreign key to UserMapping table - Added foreign key constraint to Website table for referential integrity - Added composite index on UserMapping(websiteId, userId) for query performance - Added composite index on Session(websiteId, userId) for join optimization ### Schema Updates - Updated UserMapping model with websiteId field - Added foreign key relationship: UserMapping -> Website - Added userMappings relation to Website model - Added composite indexes for better query performance ## Files Changed ### Modified - prisma/schema.prisma - Added foreign keys and composite indexes - prisma/migrations/19_add_user_id_mapping/migration.sql - Fixed invalid index ### New - prisma/migrations/20_add_user_mapping_constraints/migration.sql - Forward migration - prisma/migrations/20_add_user_mapping_constraints/rollback.sql - Rollback script ## Benefits - ✅ Referential integrity enforced at database level - ✅ Optimized queries for Umami sync operations - ✅ Better join performance on Session table - ✅ Rollback capability for safe schema changes ## Breaking Changes - UserMapping table now requires websiteId field - Existing data will be migrated to use first available website_id ## Migration Notes Run the migration with: ```bash npx prisma migrate deploy ``` To rollback if needed: ```bash psql -d umami -f prisma/migrations/20_add_user_mapping_constraints/rollback.sql ```
23 lines
922 B
SQL
23 lines
922 B
SQL
-- Add websiteId column to user_mapping table
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ALTER TABLE user_mapping ADD COLUMN website_id UUID;
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-- Update existing rows with a default website_id (you may need to adjust this based on your data)
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-- This assumes you have at least one website in your database
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UPDATE user_mapping
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SET website_id = (SELECT website_id FROM website LIMIT 1)
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WHERE website_id IS NULL;
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-- Make website_id NOT NULL after populating
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ALTER TABLE user_mapping ALTER COLUMN website_id SET NOT NULL;
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-- Add foreign key constraint
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ALTER TABLE user_mapping
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ADD CONSTRAINT user_mapping_website_id_fkey
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FOREIGN KEY (website_id) REFERENCES website(website_id);
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-- Add composite index for better query performance
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CREATE INDEX user_mapping_website_id_user_id_idx ON user_mapping(website_id, user_id);
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-- Add composite index on session table for better join performance
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CREATE INDEX session_website_id_user_id_idx ON session(website_id, user_id);
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