drizzle-kit and unique index

export const sqlUserSlugBinding = sqliteTable(
  "UserSlugBindings",
  {
    userId: text().notNull(),  // max bindings per userId
    userSlug: text().notNull(),
    created: text().notNull(),
  },
  (table) => [
    primaryKey({ columns: [table.userSlug, table.userId] }),
    uniqueIndex("UserSlug_idx").on(table.userSlug),
  ],
);

❯ pnpm exec drizzle-kit push --config ./drizzle.libsql.config.ts --verbose
Reading config file './drizzle.libsql.config.ts.'
[✓] Pulling schema from database...

 Warning  You are about to execute current statements:

CREATE TABLE `UserSlugBindings` (
        `userId` text NOT NULL,
        `userSlug` text NOT NULL,
        `created` text NOT NULL,
        PRIMARY KEY(`userSlug`, `userId`)
);

CREATE UNIQUE INDEX `UserSlug_idx` ON `UserSlugBindings` (`userSlug`);

[✓] Changes applied

> pnpm exec drizzle-kit push --config ./drizzle.libsql.config.ts --verbose
Reading config file './drizzle.libsql.config.ts'
[✓] Pulling schema from database...

 Warning  You are about to execute current statements:

PRAGMA foreign_keys=OFF;
INSERT INTO `__new_UserSlugBindings`("userId", "userSlug", "created") SELECT "userId", "userSlug", "created" FROM `UserSlugBindings`;
DROP TABLE `UserSlugBindings`;
ALTER TABLE `__new_UserSlugBindings` RENAME TO `UserSlugBindings`;
CREATE UNIQUE INDEX `UserSlug_idx` ON `UserSlugBindings` (`userSlug`);
PRAGMA foreign_keys=ON;
CREATE UNIQUE INDEX `UserSlug_idx` ON `UserSlugBindings` (`userSlug`);

LibsqlError: SQLITE_ERROR: index UserSlug_idx already exists