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Made-with: Cursor

.cursor/rules/sql.mdc

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+---
+description: "SQL and database migration conventions: naming, safety, parameterized queries, indexing, Postgres"
+globs: ["**/*.sql", "**/migrations/**", "**/Migrations/**"]
+---
+# SQL / Migrations
+
+- Use lowercase for SQL keywords (or match project convention); snake_case for table/column names
+- Every migration must be reversible (include DOWN/rollback)
+- Never rename tables or columns without explicit confirmation — prefer additive changes
+- Use parameterized queries; never concatenate user input into SQL
+- Add indexes for columns used in WHERE, JOIN, ORDER BY
+- Use transactions for multi-step data changes
+- Include `NOT NULL` constraints by default; explicitly allow `NULL` only when needed
+- Name constraints explicitly: `pk_table`, `fk_table_column`, `idx_table_column`
+- Test migrations against a copy of production schema before applying