Module '"drizzle-orm/mysql-core"' has no exported member 'unique'.ts(2305)

Getting this error when trying to import unique

import {
  text,
  unique, // erroring out
  mysqlTable,
  serial,
  mysqlEnum,
} from 'drizzle-orm/mysql-core';

import {
  text,
  unique, // erroring out
  mysqlTable,
  serial,
  mysqlEnum,
} from 'drizzle-orm/mysql-core';

10 Replies

BoxerOP•2y ago

docs state it should be there: https://orm.drizzle.team/docs/indexes-constraints#unique

Indexes & Constraints – DrizzleORM

Drizzle ORM | %s

DiamondDragon•2y ago

me too with pg

ShiftyMcCool•2y ago

I'm here for the same reason in pg. Are the docs out of date? It seems that uniqueIndex exists but the docs don't use it. This syntax from the docs doesn't work, even with uniqueIndex

export const user = pgTable('user', {
  id: integer('id').unique(),
});

export const user = pgTable('user', {
  id: integer('id').unique(),
});

But, this does:

export const composite = pgTable('composite_example', {
  id: integer('id'),
}, (t) => ({
  unq: uniqueIndex().on(t.id),
}));

export const composite = pgTable('composite_example', {
  id: integer('id'),
}, (t) => ({
  unq: uniqueIndex().on(t.id),
}));

Hope this helps, but the docs should really be updated if this is the correct way to do it now

DiamondDragon•2y ago

@shiftymccool @boxer01 not sure if you all found a solution but seems like i can add it now, but ts is telling me its not being read for some reason

DiamondDragon•2y ago

@Andrew Sherman am i reading this right, is there not a unique function in the latest version? https://www.npmjs.com/package/drizzle-orm/v/0.27.2?activeTab=code

npm

drizzle-orm

Drizzle ORM package for SQL databases. Latest version: 0.27.2, last published: 7 days ago. Start using drizzle-orm in your project by running npm i drizzle-orm. There are 20 other projects in the npm registry using drizzle-orm.

Andrii Sherman•2y ago

there is a unique function in latest if you want to use unique on column level - no need to imoprt anything. It's already available on column level if you want to have composite unique on 2+ columns, than you need to import this function and use in 3 param of pgTable

Andrii Sherman•2y ago

https://orm.drizzle.team/docs/indexes-constraints#unique

Indexes & Constraints – DrizzleORM

Drizzle ORM | %s

Andrii Sherman•2y ago

you can find a full set of examples here

DiamondDragon•2y ago

ah ok thx. saw the unique import in the docs so was wondering if it was required

BoxerOP•2y ago

it's showing up now, but it doesn't seem to be enforced:

export const channelSchema = mysqlTable(
  'channels',
  {
    id: serial('id').primaryKey(),
    channel_id: int('channel_id').notNull().unique(),
// etc

export const channelSchema = mysqlTable(
  'channels',
  {
    id: serial('id').primaryKey(),
    channel_id: int('channel_id').notNull().unique(),
// etc

I am able to still insert records into the db with the same number in the channel_id column

Gaming

Programming

Module '"drizzle-orm/mysql-core"' has no exported member 'unique'.ts(2305)