Jean-Luc Makiola
23fd3fad35
- DELETE duplicate budgets keeping oldest per (user_id, start_date) - ADD CONSTRAINT budgets_user_month_unique UNIQUE (user_id, start_date) - DELETE duplicate categories keeping oldest per (user_id, name) - ADD CONSTRAINT categories_user_name_unique UNIQUE (user_id, name) - Wrapped in single BEGIN/COMMIT transaction for atomicity
29 lines
786 B
PL/PgSQL
29 lines
786 B
PL/PgSQL
-- Migration 006: Add uniqueness constraints to budgets and categories
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-- Safe deduplication runs first inside the transaction before each constraint.
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BEGIN;
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-- Deduplicate budgets: keep the oldest row per (user_id, start_date)
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DELETE FROM budgets
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WHERE id NOT IN (
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SELECT DISTINCT ON (user_id, start_date) id
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FROM budgets
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ORDER BY user_id, start_date, created_at ASC
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);
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ALTER TABLE budgets
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ADD CONSTRAINT budgets_user_month_unique UNIQUE (user_id, start_date);
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-- Deduplicate categories: keep the oldest row per (user_id, name)
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DELETE FROM categories
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WHERE id NOT IN (
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SELECT DISTINCT ON (user_id, name) id
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FROM categories
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ORDER BY user_id, name, created_at ASC
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);
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ALTER TABLE categories
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ADD CONSTRAINT categories_user_name_unique UNIQUE (user_id, name);
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COMMIT;
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