| 1234567891011121314151617181920 | /* global WIKI */exports.up = knex => {  const dbCompat = {    blobLength: (WIKI.config.db.type === `mysql` || WIKI.config.db.type === `mariadb`),    charset: (WIKI.config.db.type === `mysql` || WIKI.config.db.type === `mariadb`)  }  return knex.schema    .createTable('userAvatars', table => {      if (dbCompat.charset) { table.charset('utf8mb4') }      table.integer('id').primary()      if (dbCompat.blobLength) {        table.specificType('data', 'LONGBLOB').notNullable()      } else {        table.binary('data').notNullable()      }    })}exports.down = knex => { }
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