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The primary key field must be `id` and the type must be `ID`.\n\n```gql\ntype Note {\n  id: ID!\n  title: String!\n}\n```\n\n### Foreign key\n\nTo set a foreign key, set a field reference to the related type.\n\n```gql\ntype Comment {\n  id: ID!\n  note: Note! # this creates a `noteId` column in the `comment` table.\n}\n\ntype Note {\n  id: ID!\n  title: String!\n}\n```\n\n### Many-to-many\n\n```gql\ntype User {\n  id: ID!\n  \"\"\"\n  @db.manyToMany: 'users'\n  \"\"\"\n  messages: [Message]\n}\n\ntype Message {\n  id: ID!\n  \"\"\"\n  @db.manyToMany: 'messages'\n  \"\"\"\n  users: [User]\n}\n```\n\n### Many-to-many on same type\n\n```gql\ntype User {\n  id: ID!\n  friends: [User]\n}\n```\n\n### Simple index\n\n```gql\ntype User {\n  id: ID!\n  \"\"\"\n  @db.index\n  \"\"\"\n  email: String!\n}\n```\n\n### Multiple index\n\n```gql\ntype User {\n  \"\"\"\n  @db.index\n  \"\"\"\n  id: String!\n\n  \"\"\"\n  @db.index\n  \"\"\"\n  email: String!\n}\n```\n\n### Named index\n\n```gql\ntype User {\n  \"\"\"\n  @db.index: 'myIndex'\n  \"\"\"\n  email: String!\n\n  \"\"\"\n  @db.index: 'myIndex'\n  \"\"\"\n  name: String!\n}\n```\n\nYou can specify the index type on PostgreSQL.\n\n```gql\ntype User {\n  \"\"\"\n  @db.index: { name: 'myIndex', type: 'hash' }\n  \"\"\"\n  email: String!\n\n  \"\"\"\n  You don't need to specify the type again.\n  @db.index: 'myIndex'\n  \"\"\"\n  name: String!\n}\n```\n\n### Unique constraint\n\n```gql\ntype User {\n  id: ID!\n  \"\"\"\n  @db.unique\n  \"\"\"\n  email: String!\n}\n```\n\n### Custom name\n\n```gql\n\"\"\"\n@db.name: 'people'\n\"\"\"\ntype Note {\n  id: ID!\n  \"\"\"\n  @db.name: 'noteTitle'\n  \"\"\"\n  title: String!\n}\n```\n\n### Custom column type\n\n```gql\ntype Note {\n  id: ID!\n  \"\"\"\n  @db.type: 'string'\n  @db.length: 100\n  \"\"\"\n  title: String!\n}\n```\n\n### List\n\n```gql\ntype Note {\n  id: ID!\n  title: String!\n  \"\"\"\n  @db.types: 'json'\n  \"\"\"\n  comments: [String]\n}\n```\n\nYou can also set `mapListToJson` to `true` in the migrate options to automatically map scalar and enum lists to JSON.\n","engines":{"node":">=10.15.3"},"scripts":{"lint":"eslint -t stylish --project \"tsconfig.json\"","test":"ava","build":"tsc","clean":"rimraf coverage dist types","watch":"tsc -w","pretest":"yarn build"},"_npmUser":{"name":"aerogear-ci","email":"dara.s.hayes@gmail.com"},"typescript":{"definition":"types/index.d.ts"},"_npmVersion":"6.13.4","description":"Create & migrate Databases from GraphQL Schema","directories":{},"maintainers":[{"name":"aerogear-ci","email":"dara.s.hayes@gmail.com"},{"name":"ephelan","email":"ephelan@redhat.com"},{"name":"wtrocki","email":"wtrocki@redhat.com"}],"_nodeVersion":"12.16.1","dependencies":{"case":"1.6.2","glob":"7.1.6","knex":"0.20.10","pino":"5.17.0","chalk":"3.0.0","lodash":"4.17.15","lodash-es":"4.17.15","node-emoji":"1.10.0","@graphback/core":"0.11.0-rc4","graphql-metadata":"0.5.0","@graphql-inspector/core":"1.27.0"},"_hasShrinkwrap":false,"readmeFilename":"README.md","devDependencies":{"pg":"7.18.2","ava":"2.4.0","rimraf":"3.0.2","graphql":"14.6.0","sqlite3":"4.1.1","ts-node":"8.6.2","tsutils":"3.17.1","typescript":"3.8.3","@types/jest":"25.1.3","@types/node":"12.12.29","@types/lodash":"4.14.149","graphql-tools":"4.0.7"},"peerDependencies":{"graphql":"^0.12.0 || ^0.13.0 || ^14.0.0"},"_npmOperationalInternal":{"tmp":"tmp/graphql-migrations_0.11.0-rc4_1583171179981_0.0360038625266772","host":"s3://npm-registry-packages"},"_id":"graphql-migrations@0.11.0-rc4","version":"0.11.0-rc4"}