User.findOne({ where: { id: 1 } })
User.findOne({ where: { id: 2 } })
// → SELECT ... FROM users WHERE id IN (1, 2)

User.findOne({ where: { id: 1, status: 'active' } })
User.findOne({ where: { id: 3, status: 'active' } })
// → SELECT ... FROM users WHERE id IN (1, 3) AND status = 'active'

User.findOne({ where: { id: 2, status: 'inactive' } })
// → SELECT ... FROM users WHERE id IN (2) AND status = 'inactive'  (separate loader)

User.findOne({ where: { id: 1, [Op.and]: [{ deletedAt: null }] } })
User.findOne({ where: { id: 2, [Op.and]: [{ deletedAt: null }] } })
// → SELECT ... FROM users WHERE id IN (1, 2) AND deletedAt IS NULL

User.findOne({ where: { id: 1, enabled: true }, order: [['id', 'DESC']] })
User.findOne({ where: { id: 2, enabled: true }, order: [['id', 'DESC']] })
// → SELECT ... FROM users WHERE id IN (1, 2) AND enabled = true ORDER BY id DESC

User.findOne({ where: { id: 3, enabled: true }, order: [['id', 'ASC']] })
// → SELECT ... FROM users WHERE id IN (3) AND enabled = true ORDER BY id ASC  (separate)

import { EXPECTED_OPTIONS_KEY, BATCH_BY_ATTRIBUTE } from 'dataloader-sequelize';

Box.findOne({
  [EXPECTED_OPTIONS_KEY]: context.dataloaderContext,
  [BATCH_BY_ATTRIBUTE]: 'ancestorBoxId',
  where: { ancestorBoxId: 1, enabled: true },
});
Box.findOne({
  [EXPECTED_OPTIONS_KEY]: context.dataloaderContext,
  [BATCH_BY_ATTRIBUTE]: 'ancestorBoxId',
  where: { ancestorBoxId: 2, enabled: true },
});
// → SELECT * FROM boxes WHERE ancestorBoxId IN (1, 2) AND enabled = true