import { BaseSchema } from '@adonisjs/lucid/schema'

/** SFV grouping (CONCEPT.md D34) looks files up by their name. */
export default class extends BaseSchema {
  static disableTransactions = true

  async up() {
    // On the NVMe (default tablespace), like the files table's other indexes.
    await this.db.rawQuery(`CREATE INDEX CONCURRENTLY IF NOT EXISTS files_name_idx ON files ((coalesce(real_name, filename)))`)
  }

  async down() {
    await this.db.rawQuery(`DROP INDEX CONCURRENTLY IF EXISTS files_name_idx`)
  }
}