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Triggers on: Drizzle, schema, migration, db:push, $inferSelect, array column.","ComeOnOliver\u002Fskillshub","ComeOnOliver","https:\u002F\u002Favatars.githubusercontent.com\u002Fu\u002F43215937?v=4","01M6E5JNFECJAAVFE0W7SMWWD2","Haoran Shu","01M6E5JNNDQS7AJZDYFQ8TPZCK",66,"MIT","https:\u002F\u002Fgithub.com\u002FComeOnOliver\u002Fskillshub\u002Fblob\u002Fmain\u002Fskills\u002Faiskillstore\u002Fmarketplace\u002Fbarissozen\u002Fpitfalls-drizzle-orm\u002FSKILL.md",[],[19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37],"pitfalls drizzle orm","drizzle","orm","drizzle orm","schema","drizzle orm patterns","column","triggers","db","patterns","migrations","migration","debugging","use","Rules","Safety","database","push","issues","2026-11-10 10:12:30",false,"---\nname: pitfalls-drizzle-orm\ndescription: \"Drizzle ORM patterns and migration safety rules. Use when defining schemas, running migrations, or debugging database issues. Triggers on: Drizzle, schema, migration, db:push, $inferSelect, array column.\"\n---\n\n# Drizzle ORM Pitfalls\n\nCommon pitfalls and correct patterns for Drizzle ORM.\n\n## When to Use\n\n- Defining database schemas\n- Running migrations (db:push)\n- Creating insert\u002Fselect types\n- Working with array columns\n- Reviewing Drizzle ORM code\n\n## Workflow\n\n### Step 1: Verify Schema Types\n\nCheck that types are exported correctly.\n\n### Step 2: Check Array Syntax\n\nVerify array columns use correct syntax.\n\n### Step 3: Test Migrations Safely\n\nNever change primary key types in production.\n\n---\n\n## Critical Rules\n\n```typescript\n\u002F\u002F ❌ NEVER change primary key types\n\u002F\u002F serial → varchar or varchar → uuid BREAKS migrations\n\n\u002F\u002F ✅ Array columns - correct syntax\nallowedTokens: text('allowed_tokens').array()  \u002F\u002F CORRECT\n\u002F\u002F ❌ WRONG: array(text('allowed_tokens'))\n\n\u002F\u002F ✅ Always create insert\u002Fselect types\nexport type Strategy = typeof strategies.$inferSelect;\nexport type NewStrategy = typeof strategies.$inferInsert;\n\n\u002F\u002F ✅ Use drizzle-zod for validation\nimport { createInsertSchema } from 'drizzle-zod';\nexport const insertStrategySchema = createInsertSchema(strategies);\n```\n\n## Migration Safety\n\n```bash\n# Safe schema sync\nnpm run db:push\n\n# If data-loss warning and you're sure\nnpm run db:push --force\n\n# NEVER in production without backup\n```\n\n## Type Inference Pattern\n\n```typescript\n\u002F\u002F ✅ Infer types from schema\nimport { strategies } from '.\u002Fschema';\n\ntype Strategy = typeof strategies.$inferSelect;\ntype NewStrategy = typeof strategies.$inferInsert;\n\n\u002F\u002F ✅ With Zod validation\nimport { createInsertSchema, createSelectSchema } from 'drizzle-zod';\nimport { z } from 'zod';\n\nconst insertSchema = createInsertSchema(strategies);\ntype StrategyInput = z.infer\u003Ctypeof insertSchema>;\n```\n\n## Quick Checklist\n\n- [ ] No primary key type changes\n- [ ] Array columns use `text().array()` syntax\n- [ ] Insert\u002Fselect types exported for models\n- [ ] Using drizzle-zod for validation\n- [ ] Migration tested in dev before prod\n","# Drizzle ORM Pitfalls\n\nCommon pitfalls and correct patterns for Drizzle ORM.\n\n## When to Use\n\n- Defining database schemas\n- Running migrations (db:push)\n- Creating insert\u002Fselect types\n- Working with array columns\n- Reviewing Drizzle ORM code\n\n## Workflow\n\n### Step 1: Verify Schema Types\n\nCheck that types are exported correctly.\n\n### Step 2: Check Array Syntax\n\nVerify array columns use correct syntax.\n\n### Step 3: Test Migrations Safely\n\nNever change primary key types in production.\n\n---\n\n## Critical Rules\n\n```typescript\n\u002F\u002F ❌ NEVER change primary key types\n\u002F\u002F serial → varchar or varchar → uuid BREAKS migrations\n\n\u002F\u002F ✅ Array columns - correct syntax\nallowedTokens: text('allowed_tokens').array()  \u002F\u002F CORRECT\n\u002F\u002F ❌ WRONG: array(text('allowed_tokens'))\n\n\u002F\u002F ✅ Always create insert\u002Fselect types\nexport type Strategy = typeof strategies.$inferSelect;\nexport type NewStrategy = typeof strategies.$inferInsert;\n\n\u002F\u002F ✅ Use drizzle-zod for validation\nimport { createInsertSchema } from 'drizzle-zod';\nexport const insertStrategySchema = createInsertSchema(strategies);\n```\n\n## Migration Safety\n\n```bash\n# Safe schema sync\nnpm run db:push\n\n# If data-loss warning and you're sure\nnpm run db:push --force\n\n# NEVER in production without backup\n```\n\n## Type Inference Pattern\n\n```typescript\n\u002F\u002F ✅ Infer types from schema\nimport { strategies } from '.\u002Fschema';\n\ntype Strategy = typeof strategies.$inferSelect;\ntype NewStrategy = typeof strategies.$inferInsert;\n\n\u002F\u002F ✅ With Zod validation\nimport { createInsertSchema, createSelectSchema } from 'drizzle-zod';\nimport { z } from 'zod';\n\nconst insertSchema = createInsertSchema(strategies);\ntype StrategyInput = z.infer\u003Ctypeof insertSchema>;\n```\n\n## Quick Checklist\n\n- [ ] No primary key type changes\n- [ ] Array columns use `text().array()` syntax\n- [ ] Insert\u002Fselect types exported for models\n- [ ] Using drizzle-zod for validation\n- [ ] Migration tested in dev before prod\n",{"name":5,"description":7},"main","def8531e65114c0fca8fb8551c1871ee0eed705c","skills\u002Faiskillstore\u002Fmarketplace\u002Fbarissozen\u002Fpitfalls-drizzle-orm",24,"https:\u002F\u002Fgithub.com\u002FComeOnOliver\u002Fskillshub","https:\u002F\u002Fskillshub.wtf","https:\u002F\u002Fgithub.com\u002FComeOnOliver","AI & Blockchain Engineer\r\n","2026-06-24 22:07:19",{"source":8,"skillName":5,"commands":53,"prompt":63,"zipAvailable":64},[54,57,60],{"tool":55,"command":56},"npx","npx skills add ComeOnOliver\u002Fskillshub --skill pitfalls-drizzle-orm",{"tool":58,"command":59},"bunx","bunx skills add ComeOnOliver\u002Fskillshub --skill 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